Class / Patent application number | Description | Number of patent applications / Date published |
407107000 | Including tool holding clamp and clamp actuator | 44 |
20080240873 | Clamp Mechanism of Throwaway Tip - The present invention relates to a clamp mechanism which prevents a tip body from being greatly cut out by a fitting hole to secure strength of a tip without complicating the shape of a head portion of a clamp member or a fitting hole of a tip body. There is provided a clamp mechanism of a tip for pressing the tip, in which a fitting hole is formed through a tip body, by the use of a clamp member having a shaft portion inserted into the fitting hole and a head portion with an outer diameter equal to or larger than that of the shaft portion and thus clamping the tip to a tip fitting seat. In the clamp member, a section, which is perpendicular to the central axis line, of the back surface of the head portion has a circle shape centered at the central axis line. In the tip body of the tip, the head portion of the clamp member can pass through the fitting hole, and a contact portion with which a part of the back surface of the head portion comes in contact at the time of advancing the clamp member is formed in an opening of the fitting hole. | 10-02-2008 |
20090016830 | TOOL HOLDER ASSEMBLY - A tool holder assembly that includes a tool holder member adapted to be secured to a machine tool and a cutting insert support/clamp for clamping and supporting a cutting insert. The support/clamp member includes a plurality of serrations that are engageable with complementally formed serrations on the tool holder whereby a tight fitting engagement is achieved using removable fasteners. The support/clamp includes a clamping arm elastically movable towards and away from a support base and a clamping block connected to the connecting arm adapted to receive clamping forces from a threaded clamping bolt. The clamping bolt defines a force applying surface located in a first plane whereas the clamping block defines a force receiving surface located in a second plane, the first and second planes located at a diverging angle with respect to each other. The clamping block includes an edge portion engageable with a step on the tool holder that is spaced from the clamping arm. The diverging planes and the engagement of the clamping block with the stepped portion increases the force applied by the clamping arm to the cutting insert for a given adjustment of the clamping bolt and resists rollover of the insert. | 01-15-2009 |
20090285645 | Cutting Tool and Cutting Insert Therefor - A cutting tool for grooving and turning operations has a removably securable cutting insert. The cutting insert is clamped in an insert holder with a longitudinally extending insert receiving slot lower surface. The insert receiving slot lower surface has two spaced apart contact sections, including a first contact section at a rear end having a V-shaped slot clamping surface with a wedge angle α | 11-19-2009 |
20090304466 | CUTTING PLATE SECURED BY INTERLOCK ON A SUPPORT PLATE - The invention relates to a cutting tool for machining processes, in essence composed of a clamping holder with a recess for accepting a support plate and with a cutting plate secured on the support plate by way of a clamping claw. It is proposed, for secure fastening of the cutting plate on the clamping holder, that an interlocking tongue-and-groove connection is used for positioning of the cutting plate on the support plate. | 12-10-2009 |
20100158622 | GROOVING TOOL FOR CUTTING GROOVES IN WORKPIECES AND A GROOVING TOOL TOOL HOLDER FOR PERMITTING REPLACEMENT OF INSERTS AND PERMITTING INSERTS TO BE REPLACED WITHOUT MOVING THE TOOL HOLDER WITH RESPECT TO THE GROOVING TOOL IN WHICH THE TOOL HOLDER IS INSTALLED - A grooving tool for cutting grooves in workpieces and a grooving tool tool holder for permitting replacement of inserts and permitting inserts to be replaced without moving the tool holder with respect to the grooving tool in which the tool holder is installed. 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. | 06-24-2010 |
20100183385 | CLAMPING TOOL HOLDER - A clamping tool holder includes a tool holder body and a clamp for clamping a cutting insert. The clamp causes the cutting insert to press against the bottom and the side walls of an insert-receiving pocket of the tool holder body. The tool holder body has an inclined surface sloping inward in a direction away from the insert-receiving pocket. The clamp has an inclined surface that acts as a ramp with the inclined surface of the tool holder body. When a clamp screw is tightened, a nub of the clamp engages only an inside rearward surface of a mounting bore of the insert along a line of contact and exerts a force downward and rearward on the insert. In addition, only a forward lower face of a head portion the clamp screw engages a top surface of the clamp. | 07-22-2010 |
20100303562 | Double-Sided Double-Ended Cutting Insert and Cutting Tool Therefor - A cutting tool includes a cutting insert releasably retained therein. The cutting insert has top and bottom surfaces and a peripheral surface extending therebetween. The cutting insert does not include any clamping bore for receiving a clamping component therein. The cutting insert may having unitary, one-piece construction and be formed of a superabrasive material. The cutting insert may have a two-headed arrow shape, or similar shapes, such that the body of the cutting insert is small relative to the cutting regions thereof. The cutting tool includes a top clamp for clamping the cutting insert in an insert pocket. The top clamp has an asymmetrical shape and engages the cutting insert in one engagement region on the top surface, and in one engagement region on the peripheral surface. The cutting insert engages the insert pocket at the bottom surface, and in three spaced apart engagement regions on the peripheral surface. | 12-02-2010 |
20110116879 | Clamping Member, Tool Holder and Indexable Cutting Tool - A clamping member for reliably inserting a protrusion portion thereof into a mounting hole of a cutting insert so as to engage the protrusion portion with an inner peripheral surface of the cutting insert and strongly clamp the cutting insert on a tool holder. The clamping member includes a body having a top surface engageable with a head of a clamping bolt, a bottom surface facing the tool holder and a bolt hole for insertion of the clamping bolt, and a protrusion portion protruding from the bottom surface and being engageable with a mounting hole formed in the cutting insert. The protrusion portion has an inclined surface facing toward a rotational direction about a center axis of the clamping bolt, the inclined surface is inclined so that the protrusion portion is gradually tapered from a base side thereof proximate the bottom surface toward an end side thereof distal from the bottom surface. | 05-19-2011 |
20110164933 | CLAMPING DEVICE FOR A CUTTING INSERT - An insert clamp secures a cutting insert having a central hole to a tool holder. The clamp includes a forward protrusion to be received in the central hole of the insert, a central body portion provided with a pressing part to press down the upper surface of the insert and a screw hole for a clamping screw to pass through, and a rear protrusion having a rear contact surface to come in contact with a rearward slanting surface of the tool holder. The forward protrusion is formed on the forward end of the insert clamp, an inside surface of the forward protrusion extends downward in a spaced state apart from the inner wall of the central hole of the insert, and a distal portion of the inside surface the forward protrusion is provided with a protuberance of convex curved surface to come in tangential contact with the inner wall of the insert. The pressing part is formed on the bottom surface of the central body portion of the insert clamp, and has convex curved surfaces to come in tangential contact with the upper surface of the insert on both regions of the bottom surface of the central body portion which is bisected by a central line passing through the forward protrusion and the screw hole. | 07-07-2011 |
20120003053 | Tool Holder Clamp Assembly for Cutting Inserts and Its Pressing Plate - A clamp fastens a cutting insert to a tool holder. The clamp assembly includes a body portion provided with a screw hole, a forward protrusion formed at the front portion of the body and extending downward, a rear protrusion formed at the rear end portion of the body and extending downward, and a bridge connecting the forward protrusion and the central portion of the body. The clamp assembly also includes a pressing plate having upper and lower surfaces, a front nose portion, a rear end portion, and is provided with a keyhole shaped groove having an enlarged inner cavity open toward the rear end by a narrow neck extending thicknesswise. The forward protrusion is inserted into the enlarged inner cavity and the bridge is inserted into the narrow neck of the keyhole groove so that the pressing plate is coupled to the clamp. | 01-05-2012 |
20120121346 | REGULATING ELEMENT - The invention relates to a regulating element ( | 05-17-2012 |
20120141216 | SCREW CONNECTIONS ON CUTTING TOOLS - A screw connection to be undone without problems and without disproportionate application of force after long-term use in cutting under extreme usage conditions with dirt, extreme heat, moisture, oxidation and alternating loads provides that the screws have a smooth surface due to coating at least in the area of the thread of the screws, that PTFE particles, preferably have a particle size between 100 nm and 300 nm, are continued in the coating, and the screw connection of the two thread partners are lubricated using small amounts of a heat-resistant grease having ceramic powder particles. | 06-07-2012 |
20120195702 | METAL CUTTING TOOL AND CUTTING PLATE PROVIDED IN THE SHAPE OF A DONUT - A metal cutting tool has a supporting tool, which has a recess for accommodating a cutting plate. The cutting plate is provided with a clamping trough, which is held in the supporting tool by a clamping claw. The clamping claw is fixed against the supporting tool by a clamping screw. A pressure piece is placed on the clamping claw and its underside facing the cutting plate is provided with a cam, which is in contact with the clamping trough and the clamping claw pulls the pressure piece toward the clamping screw. | 08-02-2012 |
20130058729 | Cutting Tool - A cutting tool includes a cutting insert and a tool holder. The tool holder includes: a base for supporting a bottom surface of the cutting insert; a clamping arm for pressing a top surface of the cutting insert; an insert receiving space formed between the bottom surface of the clamping arm and the base; and a supporting surface which defines an end of the insert receiving space and supports an end of the cutting insert. The cutting insert includes: a first pressing region on the front portion of the top surface which is oriented in a vertically upward direction; and a second pressing region on the rear portion of the top surface which is oriented at an angle in the front direction. | 03-07-2013 |
20130149054 | Tool Holder and Method for Clamping a Cutting Insert Therein - A tool holder has a main body having a holder head extending away from a holder shank in a forward direction, a clamping member non-threadingly retained in the holder head, and a locking member operatively engaging a single abutment surface of the clamping member. The holder head has an insert receiving pocket at a forward end thereof with a pocket support surface substantially facing in an upward direction, and the clamping member is located entirely rearward of the pocket support surface with the abutment surface facing generally upwardly. The tool holder is configured to direct a clamping force towards, and clamp a cutting insert against, the pocket support surface. | 06-13-2013 |
20130202371 | Indexable Double-Negative Cutting Insert Having Protruding Side Abutment Surfaces and Cutting Tool - An indexable double-negative cutting insert includes an index axis A, two opposing end surfaces, a peripheral side surface which extends therebetween, and opposing side cutting edges formed between the end surfaces and the peripheral side surface. A median plane P is located midway between the end surfaces, passes through the peripheral side surface and is perpendicular to the index axis. The peripheral side surface includes at least one protrusion which extends in an outward direction relative to the index axis, in a plan view of either end surface. The protrusion includes two side abutment surfaces which converge in the outward direction towards the median plane P. In each cross-section perpendicular to the median plane, which cross-section passes through both opposing side cutting edges and also the at least one protrusion, no portion of the peripheral surface is inward of an imaginary line connecting the opposing side cutting edges. | 08-08-2013 |
20130202372 | Tool Holder Having Set Screw for Clamping a Cutting Insert Therein - A tool holder has a body portion and a holding portion, the holding portion having a base jaw and a clamping jaw, with an insert receiving pocket therebetween extending in a forward to rearward direction, and a first slot extending generally rearwardly from the insert receiving pocket. The base jaw has a support surface, and the clamping jaw has upper and lower arms separated by a second slot and extending in the generally forward direction. The lower arm has a forward end and an under surface facing towards the support surface, the under surface having a clamping portion adjacent the forward end. The upper arm has a bore which opens out to the second slot at a location rearward of the clamping portion. The bore can accommodate a force application member which can contact and displace the lower arm towards the base jaw to clamp a cutting insert. | 08-08-2013 |
20130216320 | TOOL HOLDER WITH NUBS FOR CLAMPING A CUTTING INSERT WITH NOTCHES - A tool holder includes a tool holder body with an insert-receiving pocket and a clamp for clamping a cutting insert. The clamp includes a pair of downwardly extending nubs that engage a pair of notches in the cutting insert when the clamp is brought into pressing engagement with the insert, thereby securely clamping the cutting insert in the insert-receiving pocket of the tool holder. | 08-22-2013 |
20130236256 | GROOVE INSERT, CLAMPING HOLDER FOR A GROOVE INSERT AND GROOVE CUTTING TOOL - A groove insert to be received in a tool holder has, along its top and bottom side and on its rear side, a holding structure which is formed by holding faces which taper toward one another and by way of which the groove insert is fixed in the tool holder in a positive locking manner. The tool holder has corresponding counter faces. The groove insert and the tool holder form a groove cutting tool. | 09-12-2013 |
20130251465 | CUTTING TOOL AND METHOD OF MANUFACTURING MACHINED PRODUCT USING THE SAME - In a cutting tool, at least one of an upper contact part of an upper surface of a cutting insert and an upper jaw of a holder and a lower contact part of a lower surface of the cutting insert and a lower jaw of the holder includes a first concave-convex surface and a second concave-convex surface. A distance d | 09-26-2013 |
20140199129 | TOOLHOLDER AND CUTTING INSERT THEREFOR - A cutting tool ( | 07-17-2014 |
20140205391 | METAL CUTTING TOOL AND CUTTING PLATE PROVIDED IN THE SHAPE OF A DONUT - A metal cutting tool has a supporting tool, which has a recess for accommodating a cutting plate. The cutting plate is provided with a damping trough, which is held in the supporting tool by a clamping claw. The clamping claw is fixed against the supporting tool by a clamping screw. A pressure piece is placed on the clamping claw and its underside facing the cutting plate is provided with a cam, which is in contact with the clamping trough and the clamping claw pulls the pressure piece toward the clamping screw. | 07-24-2014 |
20140234040 | Cutting Tool and Cutting Insert Having Insert Key And Recesses For Extracting And Mounting Therein - A cutting insert has upper and lower faces, and a peripheral surface with two longitudinal insert side surfaces. Two similar through-going transverse insert key recesses open out to the insert side surfaces and to the insert lower surface. Each insert key recess has a similar profile when viewed in transverse cross sections of the cutting insert. Each insert key recess is limited by an insert recess top surface and insert recess side surfaces. The insert recess side surfaces are symmetrical about a plane. A holder blade for holding the cutting insert has upper and lower jaws for clamping the cutting insert therein, and a holder recess. The lower jaw has a leading surface and lower jaw recess. A cutting-tool key has two key members, fitted into the holder recess and an insert key recess, to force the cutting insert to mount it to or extract it from the cutting tool. | 08-21-2014 |
20140234041 | MINIATURIZED CUTTING PLATE - The invention relates to a cutting plate for a chip-removing cutting tool, comprising a cutting plate top face and a cutting plate bottom face, one or more lateral faces, cutting edges at the transition between the cutting plate top face and the one or more lateral face, and a circular chip recess in the cutting plate top face that has an outside diameter d | 08-21-2014 |
20150030400 | HOLDER AND CUTTING TOOL - A holder for grooving work includes a shank portion, and a head portion located on an end portion thereof. The head portion includes an insert attaching space, an upper and lower respectively located above and below the insert attaching space, a slit extending backward from the insert attaching space, an upper and a lower jaw connecting portions divided by the slit, an upper clamp surface on the upper jaw and a lower clamp surface on the lower jaw opposed to the insert attaching space. A column-shaped groove is connected to the deepest end of the slit. The column-shaped groove is formed to reduce the thickness of the upper jaw connecting portion, and extends from the lateral face on the side of the insert attaching space halfway along the deepest end of the slit toward the opposite lateral face. Upon attaching the insert to the holder the cutting tool is obtained. | 01-29-2015 |
20160016233 | NOTCHED CUTTING INSERTS AND APPLICATIONS THEREOF - In one aspect, cutting inserts are described herein comprising a notched architecture for facile and accurate securement to a tool holder. A cutting insert described herein comprises a top surface, a bottom surface and side surfaces extending between the top and bottom surfaces, the cutting insert having a first axis bisecting a nose of the cutting insert and a notch in the top surface, the notch arranged normal to the first axis. | 01-21-2016 |
20160039011 | Lathe Tool Mounting Expander - A hydraulic fluid actuated lathe tool mounting expander assembly incorporating a block having a base, an inner end, an outer end, a compression end, and a compression face; a first cylindrical void extending into the block, the first cylindrical void having a floor and opening at the block's compression face; a second cylindrical void extending into the block, the second cylindrical void having a floor and opening at the block's outer end; first and second pistons respectively slidably mounted within the first and second cylindrical voids; a conduit extending between the first and second cylindrical voids, the conduit being adapted for conveying the hydraulic fluid from the second cylindrical void to the first cylindrical void; and a jack screw actuator connected operatively to the block for driving the second piston against the hydraulic fluid for upwardly driving the first piston. | 02-11-2016 |
20160175942 | CUTTING TOOL FOR RECESSING AND GROOVING | 06-23-2016 |
407108000 | Wedge clamp element | 5 |
20090092453 | INSERTS FOR PARTING OR GROOVING AND METHOD OF MAKING - The present invention relates to a coated cutting tool insert with elongated shape with a rake face and an opposite bottom surface with improved strength properties obtained by providing the inserts with a blasted bottom surface. The inserts are preferably used for parting and grooving operations. | 04-09-2009 |
20110064529 | Cutting Tool and Holder - A cutting tool has a cutting insert and a holder. The cutting insert has a cutting portion and an insert shank with a cylindrical portion and a non-cylindrical portion. The holder has a clamping portion which has a clamping sleeve and a cage located therein. The cage includes a load member housing with a load member. The cage has a major abutment wall connected to a minor abutment wall. The clamping sleeve has first and second inner sections defined by points P | 03-17-2011 |
20110158756 | Cutting Tool and Double-Ended Cutting Insert Therefor - A cutting tool for grooving, parting and turning machining operations is capable of grooving to unlimited depths of cut. The cutting tool includes an indexable double-ended cutting insert having a downwardly extending insert clamping portion resiliently clamped in a self-retaining manner in an insert pocket so that chip formation is not hindered during such machining operations. | 06-30-2011 |
20120148353 | Cutting Tool and Holder - A cutting tool has a cutting insert and a holder. The cutting insert has a cutting portion and an insert shank with a cylindrical portion and a non-cylindrical portion. The holder has a clamping portion which has a clamping sleeve and a cage located therein. The cage includes a load member housing with a load member. The cage has a major abutment wall adjacent to a minor abutment wall. The clamping sleeve has first and second inner sections defined by points P | 06-14-2012 |
20150086284 | SCREW HEAD WEDGE CLAMP ASSEMBLY FOR CUTTING TOOL - A screw head wedge clamp assembly for a cutting tool includes a clamp screw having a screw head with a frustum-shaped portion, and a screw head wedge clamp having a body and a clamp head extending from the body. The clamp head has a frustum-shaped portion that is received in a mounting screw bore of a cutting insert. The wedge clamp contacts a radiused bottom wall of the clamp bore when the clamp screw is threaded into a threaded bore of an insert pocket, thereby causing the clamp head to exert a downward and rearward force against a mounting screw bore of the cutting insert to securely hold the cutting insert in the insert pocket. The screw head wedge clamp does not contact a top surface of the cutting insert, but only the frustum-shaped portion contacts the mounting screw bore of the cutting insert. | 03-26-2015 |
407109000 | Resiliently biased clamp jaw | 11 |
20130129438 | CUTTING TOOL AND CUTTING INSERT - A cutting tool has a recess for receiving a cutting insert having a clamping depression on the rake face. The cutting insert is held in the carrier tool by a clamping finger having a lug. The clamping finger being secured on the carrier tool via. a clamping bolt so that when tightening the clamping bolt, the clamping finger pulls the cutting insert into the recess. A sickle-shaped engagement element engages into the clamping depression of the cutting insert being arranged on the lug. The clamping bolt has a clamping head overhanging its shank. The clamping head is seated on an angled locating surface of the clamping finger with respect to the axis of the clamping bolt, wherein said surface is arranged so compression force of the clamping finger on the cutting insert is enhanced. The lug has a clamping surface for bearing on the rake face of the cutting insert. | 05-23-2013 |
20140321929 | CLAMP MECHANISM OF CUTTING INSERT, CUTTING TOOL, CUTTING INSERT, AND CLAMP MEMBER - A clamp mechanism includes a plug element ( | 10-30-2014 |
407110000 | Integral with holder | 9 |
20080286057 | CLAMPING MECHANISM FOR CUTTING INSERT - A clamping mechanism for a cutting insert that clamps the cutting insert in an insert mounting seat having a pair of contacting surfaces facing each other. Contacting surfaces of the insert mounting seat are provided with a pair of inclined planes inclined so as to be formed in a convex V-shape in the cross-section along the contacting direction, and the contact surfaces of the cutting insert are formed in a concave V-shape which has a pair of convex surfaces with roundness to be concave toward the inclined planes, and the pair of inclined planes and the pair of convex surfaces come in contact with each other at a pair of contacting positions, which have an interval therebetween in the width direction orthogonal to the contacting direction. | 11-20-2008 |
20100232890 | CUTTING TOOL INCLUDING A CUTTING INSERT RETAINING AND ADJUSTING MECHANISM - A cutting tool includes a novel cutting insert retaining and adjusting mechanism. The cutting insert retaining and adjusting mechanism is associated with a recess in the cutting tool and includes a nest slidably mounted in the recess. The nest includes a cutting insert pocket. The cutting insert retaining and adjusting mechanism includes a first wedge adapted to selectively exert pressure on the nest to retain the nest in a desired position in the recess, and a second wedge adapted to selectively exert pressure on a cutting insert positioned in the cutting insert pocket to retain the cutting insert in a desired position. The mechanism further includes an adjustment screw including a first threaded portion and a second threaded portion. The first threaded portion is threadedly disposed in a threaded bore in the cutting tool body, and the second threaded portion is threadedly disposed in a threaded bore in the nest. The first threaded portion has the same handedness but a different thread pitch as the second threaded portion. Rotating the adjustment screw axially slidably advances and retracts the nest in the recess. | 09-16-2010 |
20100266352 | CUTTING TOOL WITH DETACHABLE INSERT, HEAD MEMBER AND TOOL BODY OF THE SAME - In a head member ( | 10-21-2010 |
20100272523 | CUTTING TOOL WITH DETACHABLE INSERT, HEAD MEMBER AND TOOL BODY OF THE SAME - In a head member ( | 10-28-2010 |
20100272524 | Cutting Tool and Cutting Insert Therefor - A metal cutting tool having an insert holder and a cutting insert releasably secured therein. The insert holder has upper and lower blocks and upper and lower jaws, each jaw projects from the front end of each respective block. The cutting tool has a cutting portion support projecting transversely from the front end of the lower clamp at an angle α. The cutting insert has a shaft and a first cutting portion projecting transversely from the shaft at the angle α. The cutting insert has non-planar abutment surfaces formed to mate with corresponding, non-planar support surfaces located on the lower and upper jaws and on the cutting portion support. | 10-28-2010 |
20110058908 | HOLDER FOR A CHIP-REMOVING TOOL INSERT - The present invention relates to a holder for a machining tool insert, in particular a lancing or cutting insert, having an approximately beam-shaped cutter holder, a cavity formed inside the end thereof, which serves as a receiving pocket for the tool insert and is bounded by clamping jaws that define the clearance width of the receiving pocket, a slot extending with a first end to within the proximity of the inner edge of the receiving pocket so as to permit elastic pivotability of one of the clamping jaws, and having a clamping arrangement comprising an actuation member for producing a clamping force that acts within the region of the slot upon the pivotable clamping jaw. In order to attain improved absorption of transverse force components acting upon the pivotable clamping jaw, it is furthermore provided in said holder that the second end of the slot extends within the proximity of the lateral edge of the cutter holder, with an elastic connecting web that bridges the second end of the slot being disposed between the pivotable clamping jaw and the cutter holder. | 03-10-2011 |
20110211923 | Cutting Tool Assembly Having a Clamping Mechanism - A cutting tool assembly includes a tool body and a clamping mechanism for releasably clamping a cutting insert to the tool body. The clamping mechanism includes a rotatable cam member, a coupling member, a biasing spring and a clamping element. The rotation of the rotatable cam member in opposite senses results in the adjustment of the position of the coupling member in opposite directions, which results in a displacement of the clamping element, and therefore changing the locking position to a releasing position and vice versa. | 09-01-2011 |
20130170917 | Cutting Insert Having Curved Ramps for Insertion Into a Tool Holder, Cutting Tool and Method of Assembly - A cutting tool used for grooving and turning operations where a cutting insert is resiliently securable in a holder blade. The cutting insert includes an insert central lower surface located between, and recessed with respect to, two insert lower component surfaces, each having an insert lower abutment surface. At least one of the two insert lower component surfaces includes an insert inner curved ramp extending from its insert lower abutment surface to the adjacent insert lower intermediate surface and at least the other of the two insert lower component surfaces includes an insert outer curved ramp extending from its insert lower abutment surface to an adjacent end surface. | 07-04-2013 |
20130170918 | Cutting Tool and Method for Extracting Cutting Insert Therefrom - A cutting tool used for grooving and turning has a cutting insert removably secured in a holder blade. The cutting insert includes an insert passage having an insert passage axis, and the holder blade includes a holder passage having holder passage axis. When the cutting insert is resiliently clamped in the holding portion and located in a rearmost position, a passage plane containing the holder and insert passage axes forms a first angle with a main plane, perpendicular to the insert longitudinal axis and containing the insert passage centre point, where the first angle is less than or equal to 60°. The cutting insert can be extracted from the cutting tool by positioning first and second engagement portions of an extraction key simultaneously in the holder and insert passages, respectively, and rotating the extraction key. | 07-04-2013 |