| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 408057000 | Including tool with duct | 74 |
| 20100067994 | DRILLING TOOL AND METHOD FOR PRODUCING PORT SEALS - The present invention provides a new drilling tool useful in machining hydraulic port seals for fluid power ports. The drilling tool drills the port hole to size in a solid material for the minor thread diameter in combination with forming the port in a single operation. The drilling tool has a tool holder having a rotational axis, a first drilling insert having cutting surfaces on a first side and a mounting surface on a second side, at least one second drilling insert having a predetermined cutting surface portion and a mounting portion which is mounted on the holder at a location from the rotational axis of the holder. The at least one second drilling insert has first and second portions which engage and machine a work piece in a drilling operation to form a spot face and a seal form. | 03-18-2010 |
| 20100247254 | Pneumatic drilling device - The pneumatic drilling device includes: a ram provided inside a cylindrical body so that the ram can move forward and backward therein; a spindle air motor provided inside the ram; a feed air cylinder mechanism for moving the ram forward and backward; and an air supply port for supplying compressed air to the feed air cylinder mechanism and the spindle air motor through an airflow path. The airflow path includes: a first flow path for driving the spindle air motor; and a second flow path communicating with the feed air cylinder mechanism for moving the ram forward and backward. The first flow path and the second flow path are separately and independently provided in parallel. | 09-30-2010 |
| 20100254777 | ROTATING SHAFT TOOL - Shaft tool with an adjustable cutting diameter, which permits improved handling. A rotating shaft tool, in particular a multi-stage reamer, with a first shaft part, equipped with a first cutting head comprising e.g. several cutting blades and a recess in the first shaft part, in which a second shaft part is positioned in the axis of the first shaft part, the second shaft part having a second cutting head with e.g. several blades and the diameter of the first cutting head being adjustable. The second shaft can be rotated in the first shaft part and the rotation in relation to one another creates a fixed connection between the shaft parts. This permits the connection between the two shaft parts and thus in particular the diameter of the first cutting head to be modified even though the shaft tool is inserted into e.g. a spindle of a machine tool. | 10-07-2010 |
| 20100322726 | DRILLING TOOL HAVING POINT THINNING - A rotatable drilling tool has cutting edges (on a face side) that merge inwardly into a chisel edge, with the chisel edge(s) running on the face side about a central region surrounding the tool axis, with the chisel edges forming, in the innermost region (or about a point thinning region), a residual chisel edge, with cutting edge corners being formed at the outer ends of the main cutting edges, with a straight connecting line that runs through two cutting edge corners of main cutting edges situated opposite one another in relation to the tool axis, or if an opposite main cutting edge is not present, through a cutting edge corner and the tool axis, with the chisel edge inner region running from the outer end of the residual chisel edge within a region with an angle of between −15° and +15° in relation to a parallel to the connecting line. | 12-23-2010 |
| 20110008116 | Gun Drill - A gun drill is capable of supplying a coolant sufficiently to a cutting region even when a cutting blade or a guide pad is of a brazed type, or when an opening angle of a cutting chip discharge groove is large or when a tool diameter is small and of achieving high cutting efficiency by discharging cutting chips efficiently from the cutting region. The gun drill includes coolant supply passages inside a tool shank and inside a cutting head. A lengthwise direction linear cutting chip discharge groove on an outer circumferential surface extends from a proximal side of the tool shank to a cutting head distal end. The cutting head is formed with a coolant lead-out groove extending from a head-lengthwise direction intermediate portion to the head distal end, at an outer circumferential surface portion at a back side relative to the cutting chip discharge groove. A coolant lead-out port communicating with a coolant supply passage is open at a proximal end side of the coolant lead-out groove. | 01-13-2011 |
| 20110033253 | DRILL BIT - There is provided a drill bit capable of performing a continuous drilling operation on a high-strength workpiece such as a tempered tile and the like. The drill bit comprises a bit body having a receptor portion formed therein, the receptor portion being filled with a cutting oil; a drilling portion extended from one end of the bit body and coupled to the receptor portion of the bit body to form a channel in which a capillary phenomenon occurs, and having an opening formed in one end thereof; and a cutting portion provided in the opening of the drilling portion to drill a workpiece. The drill bit thus configured may be useful to enable a continuous drilling operation on the high-strength workpiece, to enable the refilling of a cutting oil used to cool the high-strength workpiece, to shorten a time for the drilling operation on the high-strength workpiece, and to drill the high-strength work-piece to the maximum extent using the minimum number of drill bits. | 02-10-2011 |
| 20110052338 | THROUGH TOOL COOLANT ADAPTER FOR DRILLING MOTOR - A collet chuck for use in boring through a workpiece that provides a cooling and cleaning fluid to the element that is machining the workpiece. One end of the collet chuck is coupled to the drive end of a motor and its other end retains the machining element. The motor provides a rotational force to the collet chuck and machining element used in machining the workpiece. The machining element, which can be a drill bit or reamer, includes an axial passage that communicates with an annulus in the chuck. The cooling/cleaning fluid flows into the annulus through a rotary seal that circumscribes the collet chuck. | 03-03-2011 |
| 20110085864 | TOOL HOLDER ASSEMBLY - A tool holder assembly including a cutting tool and a tool holder. The cutting tool includes at least one fluid passage. The tool holder includes a conduit and a bore adapted to receive the cutting tool. An adapter or adapter portion may be provided that provides a fluid to one or more fluid passages in the cutting tool. | 04-14-2011 |
| 20110110735 | ROTARY-DRIVEN TOOL FOR CUTTING MACHINING WITH A CUTTING BODY - A rotary-driven tool for cutting machining, in particular a drilling tool with a cutting body and a holder with a shaft piece is disclosed, with at least a cutter and a dovetail-shaped region on the cutting body and a matching dovetail recess on the holder. The cutting body can only be inserted in the holder laterally to a longitudinal axis of the holder. In order to fix the cutting body, opposing flank sections of the dovetail recess, between which the dovetail-shaped region fits can be moved over each other by means of a screw connection in the holder and on fixing the cutting body said body is subjected to a force on the axial direction by the screw connection. In one aspect, the cutting body is a cutting head and the axial force is exclusively generated by the dovetail-shaped region in cooperation with the dovetail recess in the holder. | 05-12-2011 |
| 20120121347 | BEVEL HEAD REPLACEABLE ROTARY TOOL, BEVEL HEAD AND TOOL BODY - A bevel head replaceable rotary tool is provided. The rotary tool includes a coupling protrusion and a coupling recess, plural sets of serrations provided on an outer circumferential surface of the coupling protrusion and an inner wall surface of the coupling recess, circumferential abutting portions provided on the tool body and the bevel head, and axial tight-contact portions, provided on the tool body and the bevel head. The serrations of the coupling protrusion and the serrations of the coupling recess arranged such that curvatures of circumferential circular arcs of the serrations of the coupling protrusion are greater than those of the serrations of the coupling recess or the serrations of the coupling protrusion and the serrations of the coupling recess have circumferential circular arcs with centers deviated from each other. | 05-17-2012 |
| 20120163931 | TOOL - The invention relates to a tool which comprises a shank with a central, continuous internal channel and an insert which protrudes into the internal channel and is frictionally and/or mechanically positively connected with the shank, wherein the internal channel has one or more widenings which in work operation of the tool serve as cooling channels. | 06-28-2012 |
| 20120288337 | ROTARY CUTTING TOOL HAVING PCD CUTTING TIP - A cutting tool for performing hole-cutting operations on a workpiece when the cutting tool is rotated about a central longitudinal axis includes a generally cylindrical body having a first end structured to be mounted to a machine tool and an opposite second end structured to engage and perform cutting operations on the workpiece. A number of coolant passages are defined in the generally cylindrical body, each coolant passage of the number of coolant passages is disposed at a first helix angle relative to the central longitudinal axis. A number of flutes are formed in the generally cylindrical body, each flute of the number of flutes includes a first portion at or about the first end of the generally cylindrical body, a second portion at or about the second end of the generally cylindrical body, and a transition portion disposed therebetween. The first portion of each flute is disposed generally at the first helix angle relative to the central longitudinal axis, the second portion of each flute is disposed generally at a second helix angle relative the central longitudinal axis, and the transition portion of each flute is disposed generally at a third helix angle relative to the central longitudinal axis greater than the first helix angle. | 11-15-2012 |
| 20120294683 | ROTATABLE DRILLING TOOL AS WELL AS BASIC BODY THEREFOR - Rotatable drilling tool has an insert top detachably connectable to a basic body and at least one chip flute. In each cross-section, each chip flute has a depth equal to the difference between the radius of a cutting circle and a radius of a greatest possible core circle centered on the longitudinal axis and tangential to a limiting curve of the respective chip flute. The basic body is divided longitudinally into a coupling segment, extending axially rearward from a coupling end, and a transportation segment that is situated axially behind the coupling segment, extends rearward toward a fixing end, and is longer than the coupling segment. Each chip flute extends through the coupling segment and the transportation segment. At least essentially the entire female part is situated in the coupling segment, and each chip flute has a smaller depth in the coupling segment than in the transportation segment. | 11-22-2012 |
| 20120321402 | MULTI-BLADE CUTTING AND DRILLING FINISHING TOOL - Described is a multi-blade cutting and drilling finishing tool, in particular a reamer, for machining deep, especially stepped bores. Said tool comprises a set of blades having a predetermined nominal diameter and blades that are distributed in a substantially regular manner along the circumference. In order to make it easier to guide the tool along the central axis, a set of guiding strips in the form of very accurately placed and preferably cylindrically ground cutting inserts is located behind the set of blades in the advancing direction. Each of said cutting inserts is axially flush with the blades of the adjacent set of blades in the advancing direction of the tool and has a nominal diameter which is smaller than the nominal diameter of the set of blades substantially by twice the size of a lubrication gap forming when the tool is used. | 12-20-2012 |
| 20130078045 | DRILL HEAD FOR A DEEP HOLE DRILLING TOOL FOR BTA DEEP HOLE DRILLING, AND DEEP HOLE DRILLING TOOL - A drill head for a deep hole drilling tool. A drill head body is rotatable about an axis of rotation and has a drilling side and a cavity duct with a chip collecting orifice. A cutting edge has a main and a secondary cutting edge cant, the secondary cutting edge cant arranged on a radial outside of the cutting edge. The main and the secondary cutting edge cants form a cutting edge corner and span a rake which is arranged contiguously to the chip collecting orifice. A first guide pad is arranged in a circumferential half, facing away from the rake, and a second guide pad is arranged diametrically opposite the cutting edge corner. The first guide pad can be offset to the cutting edge corner by the amount of a guide pad angle in the circumferential direction of the drill head The guide pad angle amounts to less than 70°. | 03-28-2013 |
| 20130089383 | DRILLING TOOL AND METHOD FOR PRODUCING PORT SEALS - The present invention provides a new drilling tool useful in machining hydraulic port seals for fluid power ports. The drilling tool drills the port hole to size in a solid material for the minor thread diameter in combination with forming the port in a single operation. The drilling tool has a tool holder having a rotational axis, a first drilling insert having cutting surfaces on a first side and a mounting surface on a second side, at least one second drilling insert having a predetermined cutting surface portion and a mounting portion which is mounted on the holder at a location from the rotational axis of the holder. The at least one second drilling insert has first and second portions which engage and machine a work piece in a drilling operation to form a spot face and a seal form. | 04-11-2013 |
| 20130115019 | Pressure Medium Controlled Counterbore Tool With A Piston-Cylinder Unit - A pressure medium controlled counterbore tool with one or multiple cutters for metal cutting, which can be actuated in their swivel position by supplying a pressure medium, wherein the actuation of at least one cutter is performed by at least one cutter by means of at least one piston-cylinder unit actuated by the pressure medium. | 05-09-2013 |
| 20130287509 | HANDHELD MACHINING DEVICE, PARTICULARLY FOR BORING - A handheld machining device ( | 10-31-2013 |
| 20130302100 | ROTATIONALLY DRIVEN MULTI-BEVEL STEP TOOL - The invention relates to a rotationally driven multi-bevel step tool, particularly a step drill for drilling into solid material, comprising a plurality of one-edged or multi-edged cutting steps which are arranged in a staggered manner in the cutting and advancing directions and each have a number of flutes that corresponds to the number of edges. Flutes ( | 11-14-2013 |
| 20140037391 | EJECTOR DRILL SYSTEM - A drilling head for a tubular shank having an inside diameter and threads may comprise an axial body comprising a duct exiting through a first end; threads adjacent the first end corresponding to the threads on the shank and aligning the duct with the shank inside diameter; a bore from an outer surface of the body to the duct; and two axially extending approximately parallel and offset surfaces adjacent a second end; and an insert affixed between the offset surfaces, the insert comprising: a first face at least partially contacting one offset surface and a second face at least partially contacting the other offset surface; one or more cutting edges adjacent the first face, the second face, or both; and a cutting lip adjacent one or more cutting edges. | 02-06-2014 |
| 20140105697 | REMOVABLE TIP TYPE ROTARY TOOL - A removable tip type rotary tool is provided in which a rotation stop key and a key groove each having a triangular shape are disposed on opposing surfaces of a body and a tip concentrically attached to a leading end portion of the body in a removable manner. A pair of side surfaces of the rotation stop key and a pair of side walls of the key groove are brought into surface contact by mounting screw. An angle for each of the pair of the side surfaces and the pair of side walls is between 60 to 100 degrees, a groove bottom of the key groove is rounded with a radius from 1.5 to 2.8 mm, corners of opening edges on both sides of the key groove and corners of both base-end side portions of the rotation stop key are rounded with radiuses, respectively, from 1.5 to 2.8 mm. | 04-17-2014 |
| 20140321931 | HYBRID CUTTING TOOL, CHIP TRANSPORTING PORTION AND PROCESS FOR PRODUCING A CUTTING TOOL - Provision is made of a cutting tool, in particular a drill or a milling cutter, having a shank and a chip transporting portion, which receives a cutting insert, wherein the cutting tool is a hybrid composite body. Furthermore, a chip transporting portion for a cutting tool and also a process for producing a cutting tool are described. | 10-30-2014 |
| 20150016905 | SCREWDRIVING TOOL AND TOOL HOLDER FOR SUCH A SCREWDRIVING TOOL - The invention relates to a screwdriving tool ( | 01-15-2015 |
| 20150328696 | Boring Cutter - A boring cutter includes a tool body and a cutting insert. The tool body includes a shaft handle and a cutting end, and defines a circumferential face extended between the shaft handle and the cutting end. The tool body further has an insert pocket extended to the cutting end to secure the cutting insert at the insert pocket, and a flute formed on the circumferential face to communicate with the insert pocket. The tool body further has a cooling channel extended through the shaft handle to the cutting end, and a plurality of discharging chambers spacedly formed on the circumferential face to communicate with the cooling channel. During a drilling process, cooling fluid is released to the discharging chambers from the cooling channel to create a pressure between the tool body and an inner wall of a hole of a workpiece to prevent the tool deflection and drilling vibration. | 11-19-2015 |
| 20150360301 | DRILL BIT - In order to ensure good guidance of a drilling tool at the start of a drilling operation and at the same time ensure a reliable evacuation of a center chip, in the drill bit, in a tool flank adjoining a respective main cutting edge, an additional point thinning is recessed in the region of a transverse cutting edge, which additional point thinning, extending in a principal direction from the tool flank, merges, with a convex course, into a chip flute. As a result of the convex design, an as far as possible homogeneous, edge-free transition into the chip flute is obtained. Since the point thinning is additionally made, the tool flank, even in the rear end facing away from the cutting edge, remains at a front axial position, so that a second land is effective for a reliable guidance of the bore already at an axially front position. | 12-17-2015 |
| 20160031016 | THREE-BLADED DRILL WITH CUTTING FLUID SUPPLY HOLE - A three-flute drill having: a tool main body with cutting edges at an axially distal end thereof, a flute portion having discharge flutes in a distal-end side portion of the body, and a cutting fluid supply hole for supplying fluid toward the edges, a rear inner wall surface on the radial direction on a rear side in the drill rotation direction and opposed to the front inner wall surface in a drill circumferential direction, an outer circumferential inner wall surface made up of a partially cylindrical surface whose center lies on an axis of the drill, and an inner circumferential inner wall surface having a partially cylindrical surface whose center lies on the drill axis and opposed to the outer circumferential inner wall surface in the radial direction, the inner circumferential inner wall having a curvature radius smaller than that of the outer circumferential inner wall surface. | 02-04-2016 |
| 20160059323 | MULTI-LIP DRILLING TOOL WITH INTERNAL COOLING DUCTS - A multi-lip drilling tool having internal cooling ducts and point grinding with point thinning is described, in which a main cutting edge transitions in the region of the drill web into a centre lip section, wherein a duct that leads to the drill tip is formed in each drill web. The cooling duct has the following characteristics, as seen in the cross section of the drill: a) it has the cross-sectional form of an asymmetrical kidney, wherein b) the largest circle (KE) substantially inscribed in the cooling duct cross section overlaps the centre of the drill webs ( ) and bounds the contour of the cooling duct cross section via a central angle (WZKE) in the range between 80 and 90° in a radially external region (KEZW) facing away from the direction of rotation ( ); c) radially externally and in the cutting direction, the boundary curve (KEZW) defined by the inscribed circle (KE) is adjoined substantially in the circumferential direction by a cross-sectional contour section (BQ | 03-03-2016 |
| 20160082535 | REAMERS WITH RADIALLY EXTENDING FLUTES - In one aspect, reamers having radially extending flutes are described herein. A reamer described herein comprises a cutting portion including a plurality of cutting teeth separated by flutes, the cutting teeth defining an outer diameter of the cutting portion and the flutes extending radially to define an inner diameter of the cutting portion. | 03-24-2016 |
| 408058000 | And means to move gaseous fluid by application of vacuum | 6 |
| 20080240877 | Cutting device with chip collector - The invention is a tool for shaving protruding material off a surface. In detail, the tool includes a housing containing a motor for driving a cutter. A hollow member is mounted to the housing about the cutter, the member having a first end attached to the housing and a second end extending beyond the cutter. The member includes at least one hole there through for allowing shaved off protruding material to pass there through. A vacuum collection system is coupled to the hollow member for collecting shaved protruding material passing through the at least one hole in member. | 10-02-2008 |
| 20090148246 | DRILLING TOOL WITH DUST COLLECTOR - According to the invention, a drilling tool includes: a driving source; a transmission drive unit for transmitting a rotation force of the driving source; and a dust collector for collecting dust produced from a workpiece drilled by the end tool and blowing air against the workpiece, wherein a filtering means for filtering the air mixed with the collected dust and a centrifugal fan for taking in the filtered air and sending out the filtered air in a circumferential direction are provided, the centrifugal fan is disposed in a housing formed with an airflow sending port for sending a part of the air taken in to the dust collector and a discharge port for discharging a rest of the air to an outside, and a distance from the airflow sending port to the discharge port in a forward direction in a direction of rotation of the centrifugal fan is longer than the distance from the airflow sending port to the discharge port. | 06-11-2009 |
| 20090279964 | Holder main body - There is provided a holder main body which has a simple structure, allows automatic tool change, and has high suction efficiency of cutting chips to be capable of preventing internal deposition. There is provided a holder man body having a mounting hole in which a cutting tool is attachable and attached to a spindle of a machine tool, the holder main body including: a second suction hole which penetrates through the holder main body in an axial direction so as to be connected with a first suction hole penetrating in the axial direction through the cutting tool attached in the mounting hole; and a third suction hole connected with the second suction hole and capable of sucking air other than suction air coming from the first suction hole. | 11-12-2009 |
| 20100316455 | Vacuum Attachment for a Rotary Tool - A vacuum attachment for attachment to a rotary tool such as a drill is provided, wherein the vacuum attachment comprises a housing, a vacuum section having an air flow means powered by the rotary tool, a dust and debris collection area having an opening at one end, and which is separated from said air flow means by a filtering device located at a second end, and a rotary tool connection device connecting said air flow means to said rotary tool, wherein said connection device is directly connected to said rotary tool such that rotation of said rotary tool effects rotation of said air flow means. The vacuum attachment also preferably contains a rotation assembly comprising gears and/or belts and pulleys, which is used to increase the rotational speed of the air flow means to a value greater than the rotational speed of the drill. The vacuum attachment can be used to collect minor amounts of dust and debris generated by, for example, the use of the rotary tool. | 12-16-2010 |
| 20130149056 | Vacuum Device - A vacuum device for a drilling hand tool includes a housing, a connection piece, a blower, and a collecting vessel. A drilling tool can be plugged into and through the connection device along a working axis. The blower conveys dust-laden air from the connection piece into the collecting vessel. The connection vessel includes a tray cartridge which can be removed from the housing, and a locking bar. The locking bar is hinged on the tray cartridge or on the housing and can pivot between a locking position and an unlocked position. When the locking bar is in the locking position, it presses the tray cartridge against the housing to provide pretensioning. | 06-13-2013 |
| 20140119845 | BORING DEVICE - A boring device including a main shaft which is rotated by a driving source | 05-01-2014 |
| 408059000 | Conducting channel extending to end of tool | 36 |
| 20080260479 | DEVICE FOR SUPPLYING COOLANT INTO A SHANK OF A ROTARY TOOL AS WELL AS A ROTARY TOOL, IN PARTICULAR A DRILL - A device for supplying coolant into a shank of a rotary tool as well as a rotary tool, in particular a drill. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner. | 10-23-2008 |
| 20090016832 | DRILL - A drill includes a blade portion provided with spiral cutting blades along a cutting direction from a tip end to a rear end, and a shank portion formed consecutively on a rear side of the blade portion. The blade portion includes distal-side cutting blades provided from the distal end of the blade portion along the cutting direction and angled at a constant first torsion angle, intermediate grooves formed at a variable torsion angle that varies gradually from the first torsion angle to a second torsion angle, and rear-side grooves formed at the constant second torsion angle. The rear-side grooves are longer than the distal-side cutting blades in the cutting direction, and the second torsion angle is greater than the first torsion angle. | 01-15-2009 |
| 20090047080 | Deep Hole Drill - The present invention concerns a drill, in particular a deep hole drill, comprising a shaft ( | 02-19-2009 |
| 20090142150 | Tungsten steel cutter - A tungsten steel cutter which is lower cost to use and can increase fabrication efficiency and improve quality mainly includes a shank and a bit screwing at a front end of the shank. Both are made of tungsten steel and formed in an integrated fashion. The shank has a screw hole at the front end and a coupling trough formed at the front end of the screw hole. The bit has a screw bar extended from the bottom end thereof and a coupling neck at the front section of the screw bar. The coupling trough is formed at a depth same as the height of the coupling neck and the coupling trough and the coupling neck are formed at the same size. The bit and the shank have respectively a water discharge passage and a water drawing passage, and a water intake passage that communicate with each other. The water intake passage is formed at a greater diameter than the water discharge passage and water drawing passage. Thus when the bit and the shank are screwed together, in addition to screw coupling of the screw hole and the screw bar, the coupling trough and the coupling neck also form a tight coupling to minimize gaps that might otherwise happen between them like the conventional ones do. The water discharge passage and water intake passage provide cooling effect for cutting fluid and prevent debris from accumulating on the bit and affecting cutting quality. The invention provides a two-section coupling that can save the cost and improve steadiness and fabrication efficiency of precision tools. | 06-04-2009 |
| 20090148247 | GUN DRILL - A gun drill having excellent cutting efficiency, having high deep-hole drilling efficiency, and having a prolonged blade service life has a cutter head having a coolant discharge port communicating with a coolant supplying path at the distal end face at the distal end of a hollow shank portion having a cutting chip discharge groove, whose section along the lengthwise direction is V-shaped, on the outer surface and having the interior thereof made into a coolant supplying path, wherein a blade portion of the cutter head is made of cemented carbide alloy, and at the same time, the guide pads that are brought into sliding contact with the inner circumference of a cutting bore are composed of a dissimilar material having higher hardness than the cemented carbide alloy. | 06-11-2009 |
| 20090155008 | DRILLING TOOL, IN PARTICULAR FOR METALLIC MATERIALS - The invention relates to a drilling tool, in particular for metallic materials, having a clamping shaft and an essentially cylindrical drill body, between whose face side and the clamping shaft at least one groove-shaped chip space extends which is bordered by the side walls, of which one side wall on the face side of the drill body bears a cutting element. The side wall which bears the cutting element has a web which is drawn up from the side wall in the peripheral direction and which extends in the longitudinal direction of the drill. | 06-18-2009 |
| 20090196698 | TOOL SYSTEM - The present invention relates to a tool system, comprising: a holder comprising a supply device for cooling lubricant, a cutting tool which has a tool cutter and a fixing part, and a tensioning device which has a tension screw by means of which a tension force acting upon the cutting tool can be produced for the purpose of fixing the latter in position on the holder, wherein a support face is realized on the holder for direct bearing contact of the fixing part of the cutting tool that is pressed-on by the tensioning screw, and wherein there is constituted a fluid space which adjoins this support face, is delimited by wall parts of the bearing fixing part of the cutting tool and is fluidically connected to the supply device for cooling lubricant, and from which cooling lubricant can be passed on to the region of the main cutter via a channel which, provided in the cutting tool, comes from the adjoining wall of the fixing part. | 08-06-2009 |
| 20090279965 | Drill body - A drill body for chip removing machining, including a rotationally symmetrical envelope surface and front and rear ends between which a center axis extends, around which the envelope surface is rotatable in a predetermined direction of rotation. A head is formed in the front end that includes two cutting edges, each one of which includes a first part edge and a second part edge. The first part edge is included in a central tip part having a front end portion situated along the center axis. The second part edge extends between a peripheral end point positioned along the envelope surface and a radially inner end point where the second part edge transforms into the first part edge. The two first part edges converge at a positive nose angle (α) in an axially forward direction, and the two second part edges diverge at a negative angle (β) in the axially forward direction. Each cutting edge is delimited between a chip surface adjacent to a chip flute countersunk in the envelope surface, and a primary clearance surface that transforms into a secondary clearance surface situated rotationally behind the primary clearance surface. Each primary clearance surface includes two part surfaces which mutually form an obtuse angle (χ), and which meet each other in a first chute bottom that runs rotationally rearward from the inner end point of the second part edge. A second chute bottom extends in the extension of the first chute bottom and separates two second part surfaces included in the secondary clearance surface. | 11-12-2009 |
| 20090297285 | DEEP HOLE DRILLING MACHINE - In a deep hole drilling machine employing an external system for supplying coolant to a drilling portion in which high drilling efficiency can be achieved even if the drilling hole is deep by enhancing the discharge performance of chips from the drilling portion without setting the supply pressure of coolant at a high level, a tubular boring head having discharging openings is attached to the distal end of a hollow boring bar having an interior serving as the chip discharge passage. Bypass holes are provided at a plurality of circumferential positions in the circumferential wall of the boring head to penetrate obliquely such that the outer opening is located closer to the distal end side of the head than the inner opening, and a part of the coolant supplied externally to the drilling portion side flows through the bypass holes into the boring head, thus generating attraction force to the discharge side and accelerating discharge of the chips. | 12-03-2009 |
| 20100021251 | DRILL BIT - A drill bit cable of breaking off and milling up the core of a material being drilled is disclosed. The drill bit includes a shaft having an internal fluid conduit, and a working portion adapted to drill a hole. The working portion includes an exterior shoulder and an exit port. The exit port comprises an exit channel that communicates fluid from the fluid conduit to the working portion of the drill bit. The axis of the exit channel is offset from the axis of the drill bit. The exit channel at least partially overlaps the axis of the drill bit in order to define the diameter of the core formed during the drilling process. The exit port also includes a radially expanding interior shoulder that is adapted to break off the core and mill up the core fragments to prevent the core from entering into the fluid conduit. | 01-28-2010 |
| 20100086371 | TWIST DRILL HAVING AT LEAST TWO CUTTING INSERTS AT THE TIP EACH WITH ITS OWN J-SHAPED CHIP GUIDING FLUTE AND A METHOD FOR THE PRODUCTION THEREOF - A twist drill having at least two cutting inserts at the tip each with its own J-shaped chip guiding flute and a method for the production thereof. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner. | 04-08-2010 |
| 20100135739 | Gun Drill - A gun drill in which coolant delivered to a cutting part can be discharged intensively to a cutting chip discharge groove along with the chips, damage on the inner circumference of a drilled hole or fall of machining precision due to clogging with chips can be prevented, and cutting efficiency is enhanced by reducing rotary load and long lifetime can be attained. Coolant supply paths ( | 06-03-2010 |
| 20100150673 | DRILLING TOOL FOR MACHINE TOOLS AND METHOD FOR THE PRODUCTION THEREOF - The invention relates to a drilling tool for machine tools comprising a drill body and a cutting head arranged on the front face of the drill body. The drill body has at least two chip flutes, which are delimited at their flanks by ribs and at least one of which is spirally curved. Arranged in the ribs of the drill body are coolant channels, which have an outlet opening at the end of the drill body on the cutting head side. A special feature is that the outlet openings are arranged within each one of the chip flutes and communicate with one of the coolant channels arranged in the ribs by way of a straight channel endpiece. | 06-17-2010 |
| 20100232895 | Pressure-Medium-Controlled Countersinking Tool - A pressure medium controlled countersinking tool with one or more chip-removing knives, which can be activated by feeding in a pressure medium, in which for activation of at least one knife this is flowed in by a control medium. | 09-16-2010 |
| 20100247255 | DRILLING TOOL FOR MACHINE TOOLS AND METHOD FOR THE PRODUCTION THEREOF - The invention relates to a drilling tool for machine tools. The drilling tool comprises a drill body, a cutting head arranged on the front face of said drill body and a shaft arranged at the end thereof, wherein the drill body has two chip flutes, which are delimited at their flanks by ribs and a first chip flute of which is spirally curved. A special feature of the invention is that a second chip flute is not spiraled or is spirally curved with a pitch differing from the first chip flute, preferably running in the same direction of rotation. | 09-30-2010 |
| 20100272531 | Cutting Tool and a Process for making Such a Cutting Tool - A cutting tool having a monolithic construction includes an injection molded shank, and an extruded fluted portion extending forwardly from the shank, the shank and the fluted portion having a monolithic construction. The process for making the cutting tool includes forming a cutting tool green body by injection molding a shank of the green body and extruding a fluted portion of the green body such that the shank and the fluted portion have a monolithic construction; and then sintering the cutting tool green body. | 10-28-2010 |
| 20110070042 | ROTARY CUTTER - The object of the invention is to stably spray cutting fluid in a good mist form, when cutting fluid and air are supplied from the surrounding area and cutting fluid is sprayed in a mist form from the tip end section of a rotary cutting tool. The rotary cutter of the present invention sequentially feeds a mixture of cutting fluid and air through a supply pipe | 03-24-2011 |
| 20110222976 | WORKING UNIT - To provide a working unit ejecting mist of the excellent quality. A working unit includes a body, a ram, a forward and backward moving mechanism moving the ram forward and backward, a tool, a holding section holding the tool and moving forward and backward integrally with the ram, a spindle motor rotating the holding section, and a mist supply portion supplying mist mixed with air and cutting oil to the tool and works a workpiece while supplying the mist. The tool has through-holes supplying the mist to a cutting blade portion. The holding section includes a collet holding the tool and a collet having an inner cylindrical portion into which the collet is inserted with a communication hole to which the mist supplied from the mist supply portion | 09-15-2011 |
| 20110268518 | ROTARY CUTTING TOOL HAVING PCD CUTTING TIP - A rotary cutting tool comprises an elongate body disposed about a longitudinal axis, the elongate body including a helical flute and a polycrystalline-diamond cutting tip. The cutting tip comprises an inner portion having an inner point angle and an outer portion having an outer point angle different from the inner point angle. | 11-03-2011 |
| 20120082523 | ROTATIONALLY DRIVEN MULTI-BEVEL STEP TOOL - The invention relates to a rotationally driven multi-bevel step tool, particularly a step drill for drilling into solid material, comprising a plurality of one-edged or multi-edged cutting steps which are arranged in a staggered manner in the cutting and advancing directions and each have a number of flutes that corresponds to the number of edges. Flutes ( | 04-05-2012 |
| 20120082524 | COOLANT-HOLE EQUIPPED DRILL - A coolant-hole equipped drill includes a drill main body, a cutting edge portion which has a tip flank, a chip discharging groove provided with a front groove wall surface and a rear groove wall surface, a cutting edge formed at a ridge line portion where the front groove wall surface and the tip flank intersect with each other, a land portion formed between the chip discharging grooves adjacent to each other in the rotating direction, and a coolant hole drilled at the land portion and opened at the tip flank. The coolant hole includes a front hole wall surface, a rear hole wall surface, and an outer-circumference hole wall surface. | 04-05-2012 |
| 20120114438 | BLANK AND TOOL WITH COOLING CHANNELS - The application comprises a blank for producing a cutting tool with at least one inner bore for conducting fluids, wherein the blank comprises at least a first and a second portion along, its longitudinal axis, wherein the inner bore in the first portion is formed substantially in a straight line and parallel to the longitudinal axis of the blank, and the inner bore in the second portion has a first twist with a first twist angle greater than zero, wherein the blank can be obtained by a continuous pressing operation, in particular a continuous extruding operation. The application also describes an extrusion device for producing a blank, wherein the extrusion device comprises a control element for controlling the twist angle, in particular the first and/or second twist angle. | 05-10-2012 |
| 20120308319 | ROTARY CUTTING TOOL HAVING COATED CUTTING TIP AND COOLANT HOLES AND METHOD OF FABRICATING - A cutting tool for performing hole-cutting operations on a workpiece when the cutting tool is rotated about a central longitudinal axis. The cutting tool includes a generally cylindrical body having a first end structured to engage the workpiece and an opposite second end structured to be mounted to a machine tool; a groove formed in the first end of the generally cylindrical body, the groove disposed generally transverse to the longitudinal axis; and a nib portion disposed in, and coupled to, the groove via a brazing process. | 12-06-2012 |
| 20130004253 | DRILLING/REAMING TOOL - A drilling/reaming tool includes a basic body which extends in a longitudinal direction. The basic body includes at least one end-side drilling major cutting edge, a main flute which is assigned to said drilling major cutting edge and is wound at a first helix angle, and a plurality of reaming cutting edges which are arranged circumferentially on the basic body and have in each case one reamer flute which is assigned to the respective reaming cutting edge and is wound at a second helix angle. The reaming cutting edges adjoin the at least one major cutting edge directly in the longitudinal direction. Each reamer flute is merged into the main flute. | 01-03-2013 |
| 20130136550 | ROUND TOOL BLANK AND METHOD AND DEVICE FOR MAKING THE SAME - The present invention relates to a method and a device for manufacturing a blank for a round tool and to a blank for a round tool, and eventually to a method for manufacturing a round tool and to a round tool obtained. The device comprises a die for extrusion and a sleeve arrangement comprising a sleeve, and an end member for closing the sleeve in one end. Extrusion through the die continuously forms an extruded material comprising chip flutes and optionally internal coolant channels, which is received by the sleeve arrangement. The extruded material received by the sleeve arrangement is reworked and shaped to a shank portion after the interior shape of the sleeve arrangement. A projection of the end member protruding into the sleeve forms a bore in the blank. When the shank portion is finished the end member is released and moved forward as extrusion continues to form a fluted portion to complete the blank. The material waste is minimal in this process and since the internal coolant channels are formed simultaneously with the chip flutes in the fluted portion there is no risk of deforming the internal coolant channels. Moreover, a bore in the round tool removes unnecessary material and provides improved design of internal coolant channels. | 05-30-2013 |
| 20130223943 | TOOL HEAD FOR A MODULAR SHANK TOOL - A tool head for use with a modular shank tool includes at least two preforms. Each preform of the at least two prefroms is made separately from the other preform of the at least two preforms from granular materials and then put together and jointly compressed and integrally bonded. | 08-29-2013 |
| 20130266386 | DRILL BIT - An object is to provide a drill bit with improved strength of joint between a bit tip and a bit shaft without diminishing dust suction performance of the drill bit. A drill bit 1 includes: a bit tip | 10-10-2013 |
| 20130302101 | TWIST DRILL ASSEMBLY, COMPONENTS FOR SAME AND METHOD FOR MAKING SAME - A twist drill assembly ( | 11-14-2013 |
| 20140255115 | DRILLING SYSTEM FOR DEEP HOLES - The invention is directed to a drill system that better uses the power curve of modern machine tools. The drill system uses a two-step drill, utilizing IC inserts to perform the major hole diameter cutting, and a central drilling system. In examples, the IC inserts can be set in a drill head in a single or double effective configuration. A central drilling system cuts the remaining minor diameter portion of the hole, and is configured to see less cutting surface footage, due to its position from the rotating center of the tool. The central drilling system may include a “self-centering” geometry, such that the drill head of the tool with be guided throughout the depth of the hole. The drill system allows for a large diameter deep hole that remains straight throughout to be drilled at higher speed and lighter feed rates thus offering a more productive tool that takes advantage of the power curves and lower thrust capabilities of modern machine tools. | 09-11-2014 |
| 20140255116 | ROTARY CUTTING TOOL, REPLACEABLE CUTTING INSERT AND METHOD OF MAKING REPLACEABLE CUTTING INSERT - A replaceable cutting insert includes a cutting insert body having a forward cutting face and an opposing rearward base, an inlet coolant channel formed in the cutting insert body, a first outlet coolant channel formed in the cutting insert body and in fluid communication with the inlet coolant channel and a second outlet coolant channel formed in the cutting insert body and in fluid communication with the inlet coolant channel. The inlet coolant channel includes a longitudinal axis that is not axially aligned with either a first longitudinal axis of the first outlet coolant channel or a second longitudinal axis of the second outlet coolant channel. A rotary cutting tool incorporating the replaceable cutting insert is also provided. A method of making a replaceable cutting insert is also provided. | 09-11-2014 |
| 20140348602 | COUPLING PART FOR ROTARY TOOL AND ROTARY TOOL INCLUDING SAME - A coupling part structured to engage with a complementary coupling part for interchangeably fastening a cutting head to a carrier of a rotary cutting tool. The coupling part includes a pair of coupling pins arranged opposite each other with respect to a central longitudinal axis and spaced apart from each other so as to form a receiving space structured to receive a central pin of the complementary coupling part. Each coupling pin includes a stop surface for transmitting a torque, a radially external outer surface, and a radially internal inner surface. At least one of the outer surface or inner surface is a clamping surface oriented in an obliquely inclined manner with respect to the central longitudinal axis for centering and clamping the coupling part. | 11-27-2014 |
| 20150063931 | INDEXABLE DRILL ASSEMBLY AND DRILL BODY HAVING COOLANT SUPPLY - An indexable drill assembly includes a drill body, which has a head portion at the axial forward end thereof and wherein the head portion has an outboard pocket and an inboard pocket. The drill body contains an outboard pocket coolant channel adjacent the outboard pocket and an inboard pocket coolant channel adjacent the inboard pocket. The outboard pocket has a seating surface and the outboard pocket coolant channel opening at the seating surface. The drill body further contains an outboard retention screw aperture opening in the seating surface wherein the seating surface contains an outboard coolant ring surrounding the retention screw aperture wherein the outboard coolant is being in fluid communication with the outboard pocket coolant channel. The inboard pocket has a seating surface and the inboard pocket coolant channel opens at the seating surface. The drill body further contains an inboard retention screw aperture opening in the seating surface wherein the seating surface contains an inboard coolant ring surrounding the inboard retention screw aperture wherein the inboard coolant ring is in fluid communication with the inboard pocket coolant channel. The drill assembly further includes an indexable outboard cutting insert retained in the outboard pocket, and an indexable inboard cutting insert retained in the inboard pocket. | 03-05-2015 |
| 20150110567 | Modular Reamer System - A rotary cutting tool having a monolithic carbide cutting member defining a carbide cutting head and a carbide shaft extending outwardly from the cutting head. The shaft includes a conduit in fluid communication with a port for delivering coolant and/or lubricating fluid to an interface between the cutting tool and a work piece. The cutting head defines a peripheral portion and a plurality of carbide cutting edges alternating with flutes in the peripheral portion. The cutting head, the shaft, and the cutting edges are formed integrally with one another. A shank portion defines an elongated bore, and the shaft is received in the bore in a shrink-fit relationship, wherein the shaft of the cutting member is fixed against movement relative to the shank portion. | 04-23-2015 |
| 20150321267 | DRILL - A drill with a cutting fluid supply hole includes: a tool main-body with an axial end cutting-edge, a portion having a discharge flute on a main-body distal end side portion, and a cutting fluid supply hole, the hole having a fan-shaped cross section defined by a front inner-wall surface located along a main-body radial direction on the front side in the drill rotation direction, a rear inner-wall surface located along the radial-direction on the rear side in the drill rotation direction and facing the front inner-wall surface in a main-body circumferential direction, an outer circumferential inner-wall surface made up of a partially cylindrical surface around a drill center line, and an inner circumferential inner-wall surface made up of a partially cylindrical surface around the center line with a curvature radius smaller than that of the outer circumferential inner-wall surface and facing the outer circumferential inner-wall surface in the radial direction. | 11-12-2015 |
| 20150360302 | ROTARY TOOL AND METHOD FOR MANUFACTURING A ROTARY TOOL - The invention relates to a rotary tool ( | 12-17-2015 |
| 20160151842 | TWIST DRILL FOR METAL MACHINING | 06-02-2016 |
| 408060000 | Including nozzle | 4 |
| 20100260563 | DRIVEN TOOL ASSEMBLY - A driven tool assembly that uses the cutting tool coolant to also lubricate and cool the driven tool. The driven tool housing has at least one coolant intake port, at least one coolant discharge port, and a shank for mounting the driven tool assembly to a machine tool. An input shaft and an output shaft are rotatably mounted in the driven tool housing, and a transmission transmits power from the input shaft to the output shaft. A seal is disposed between the housing and the input shaft. Typically, at least one passageway fluidly communicates the coolant intake port with the input shaft, the output shaft, the transmission, the bearings, and the coolant outlet port. | 10-14-2010 |
| 20110020083 | REAMER | 01-27-2011 |
| 20140030037 | DEVICE FOR INTERNAL CHIPS CUTTING MACHINING WITH A NOZZLE FOR FLUSHING CUTTER FLUID ON THE CUTTER - A device for internal chips cutting machining in a bore having a unit for breaking up chips by internal chip cutting machining in the bore. The device includes a principal element with a longitudinal axis and with at least one movable cutter head with a cutter that can be moved essentially perpendicular to the longitudinal axis of the principal element. The device also includes a mechanism for linear motion. A nozzle for flushing of the cutter fluid on the cutter is located onto and can be moved together with the cutter head. A fluid duct is in connection with the nozzle and has a source for cutter fluid at high pressure. | 01-30-2014 |
| 20140271003 | METHOD OF JOINING SINTERED PARTS OF DIFFERENT SIZES AND SHAPES - A method of joining a plurality of parts to form a unitary body. At least two sintered parts are provided. At least one of the sintered parts has at least one internal channel. Each of the parts is formed of a hard metal composition of material. The at least two sintered parts are assembled into the shape of a unitary body. Each of the at least two sintered parts has a joining surface and when each joining surface is brought into contact the surfaces form a bonding interface therebetween. The assembled parts are subjected to a vacuum or gas atmosphere, without the application of external pressure, and to a temperature sufficient to fuse the at least two sintered parts together at the bonding interface to form the unitary body. | 09-18-2014 |
