| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 407054000 | With cutting edge entirely across end of tool (e.g., router bit, end mill, etc.) | 68 |
| 20080199265 | End Mill - An end mill enable to suppress vibrations in cutting and improve chip discharging property, thereby achieving both high cutting efficiency and long tool life. The first clearance angle t | 08-21-2008 |
| 20080206003 | ROTARY CUTTING TOOL - A rotary cutting tool is provided having an axis of rotation, a shank section, a fluted section, and a plurality of helical teeth. The shank section and the fluted section both extend along the axis of rotation. The fluted section has a first end integrally attached to the shank section, a second end, and an outer surface extending between the first and second ends. A plurality of helical teeth is disposed along the outer surface, each having a cutting edge and an undulating geometry. The helical teeth are arranged so that rotationally successive cutting edges are sufficiently dissimilar relative to one another to inhibit a detrimental periodic response in the rotary cutting tool. | 08-28-2008 |
| 20090092452 | ROTARY CUTTING TOOL - To provide a highly practical rotary cutting tool with which chips can be satisfactorily removed even during longitudinal feeding, and the accumulation of chips can be minimized. A rotary cutting tool is provided, wherein a large number of helical chip-removing grooves ( | 04-09-2009 |
| 20090097928 | WELD GUN LUG RESURFACING TOOL - A resurfacing tool and method of operation for a weld gun lug having a lug face is disclosed. The resurfacing tool may comprise a hollow chip retention housing having a lug entrance, a bushing opening, and a chip retention area. A rotary attachment shaft extends through the lug entrance and rotates relative to the retention housing, driven by a rotary power tool. A cutting head assembly is mounted to the rotary attachment shaft in the retention housing for rotation with the rotary attachment shaft, with the cutting head assembly having a cutting head facing toward the lug entrance. A member defines an alignment bore oriented coaxially relative to the rotary attachment shaft. A guide pin has a lug attachment portion configured to attach to the weld gun lug normal to the cable bolt attachment hole, and a pilot shaft telescopically received in the alignment bore. | 04-16-2009 |
| 20090232610 | END MILL - A plurality of chip discharge flutes are located on an outer periphery of a tip portion of the end mill body which rotates on its axis. Helix angles between the axis and the cutting edges in the chip discharge flutes, of which are at least one or more; are different from others. A cross-section perpendicular to the axis shows that a flute bottom face in a main flute portion forms a concavely curved shape from the rake face to a point where the flute bottom face, touches a web thickness circle of the end mill body, forms a linear shape, and goes toward the end mill rotating direction; and a flute bottom face in a sub-flute portion forms a linear shape, intersects with the flute bottom face in the main flute portion at an obtuse angle, goes further toward the end mill rotating direction. | 09-17-2009 |
| 20090245952 | BIT WITH A CUSHION CORE - A bit includes a body, a cutting edge, and a shim. The body has a shank end and a cutting end, and the shank end is arranged to be held by a drill or router. The cutting edge is positioned at the cutting end of the body. The shim is between the cutting end of the body and the cutting edge, and the shim is arranged to absorb forces so as to protect the cutting edge. | 10-01-2009 |
| 20090317198 | VARIABLE DIAMETER CUTTING TOOL - A cutting tool comprises a tool body having proximal and distal ends and defining a central axis. The tool body includes a shank portion and a fluted portion. The shank portion may be configured to be rotatably engageable to a milling machine. The fluted portion may include a plurality of teeth disposed about a circumference thereof and being formed at a radius relative to the central axis. In one embodiment, the teeth may be divided into first and second tooth sections with the teeth in the second tooth section being formed at a reduced radius relative to the teeth in the first tooth section. | 12-24-2009 |
| 20100008736 | ROTARY CUTTING TOOL - There is provided an exceptionally practical rotary cutting tool allowing the life of the tool to be prolonged. The rotary cutting tool has a plurality of helically shaped swarf discharge flutes ( | 01-14-2010 |
| 20100014929 | BORING TOOL WITH ADJUSTABLE CHAMFER CUTTER - A cutting tool having a cutting portion located proximate to one end. The cutting tool including a recessed chip flute formed along the shank of the tool away from the cutting edge. The tool includes a chamfering cartridge which is clamped to the tool shank along the chip flute. The chamfering cartridge performs a chamfering or deburring operation while allowing chips from the cutting portion to pass through the flute and away from the tool and workpiece. | 01-21-2010 |
| 20100143052 | RADIUS END MILL AND CUTTING METHOD - An end mill body rotatable around an axis; peripheral cutting edges formed at a periphery of the end mill body located close to a distal end thereof; bottom cutting edges formed at a distal end of the end mill body; and corner cutting edges formed between the peripheral cutting edge and the bottom cutting edge. The corner cutting edges are formed to curve inwardly in a radial direction of the end mill body as they approach the distal end of the end mill body from the terminal end thereof and curve toward the terminal end of the end mill body after reaching the distal end of the end mill body. The bottom cutting edges are formed to communicate with the corner cutting edges and are close to the terminal end of the end mill body as the bottom cutting edge approaches inwardly in the radial direction. A value of a rake angle α of the corner cutting edge with respect to the axis −10°≦α≧10°. A rake surface of the corner cutting edge and a rake surface of the bottom cutting edge each are formed like a plane, and the rake surface of the corner cutting edge is formed to be flush with the rake surface of the bottom cutting edge. When an external diameter of the end mill body is D, a value of a curvature radius R of the corner cutting edge is greater than or equal to 0.1×D and is less than or equal to 0.3×D. | 06-10-2010 |
| 20100178119 | CHATTER-RESISTANT END MILL - A chatter-resistant end mill and a method of making such an end mill, in which the teeth of the end mill are unequally spaced apart to substantially reduce or eliminate vibrations produced during cutting of a work piece. | 07-15-2010 |
| 20100183383 | END MILL FOR ORBITAL DRILLING - A center or non-center cutting end mill for orbital drilling includes a shank having a shank diameter; a neck having a neck diameter; a cutting head having a cutting diameter; a corner radius; a dish angle; and a longitudinal axis, the cutting head including a forward cutting end having a convexly curved section located between the longitudinal axis and the corner radius, wherein the convexly curved section causes material removed from a workpiece to flow radially outward from an initial contact area toward the corner radius, thereby minimizing the accumulation of material in a central portion of the forward cutting end. | 07-22-2010 |
| 20100196108 | END MILL - It is an object of the present invention to effectively suppress the occurrence of burrs in machining of a fiber-reinforced composite material, etc., using an end mill. An end mill includes first cutting edges | 08-05-2010 |
| 20100209200 | CUTTING INSTRUMENT AND METHODS FOR IMPLEMENTING SAME - A rotating cutting tool ( | 08-19-2010 |
| 20100226726 | SHANK DRILL - A shank cutter has plural circumferential cutting edges which run in a helical manner in the region of its cutting section and of which at least one critical number are equipped in each case with a preferably essentially flattened roughing profile with chip-separating grooves with rounded bases, so that the chip-separating grooves of cutter ridges which are adjacent in the circumferential direction are axially offset relative to each other. To create a tool which provides long service life by combined advantages of a vibration-stabilized finishing cutter and a conventional roughing cutter, at least one circumferential cutting edge has an angle of twist which differs from that of another circumferential cutting edge. In addition, the chip-separating grooves of the circumferential cuffing edges which are equipped with a roughing profile in each case merge into a preferably essentially flattened central section of the roughing profile by means of a predefined flank radius. | 09-09-2010 |
| 20100239378 | END MILL - An end mill having a gash formed in a top portion of a flute. In a cross-section perpendicular to an intersecting ridgeline between an end cutting edge rake face and a gash bottom face of the gash, the gash bottom face and the end cutting edge rake face, and the gash bottom face and the gash wall face are respectively connected together by first and second connecting faces. The connecting faces have a form which either is a concave curve or a substantially concave curve formed with straight lines. A radius of curvature of the concave curve or the radius of a circle inscribed within straight lines forming the substantially concave curve about the front connecting face is larger than a radius of curvature of the concave curve or the radius of a circle inscribed within the straight lines forming the substantially concave curve about the second connecting face. | 09-23-2010 |
| 20100260559 | BALL END MILL - This aims to provide a ball end mill capable of preventing the occurrence of a ‘pluck’ off a work face. The ball end mill ( | 10-14-2010 |
| 20110085862 | End mill grooved chip breaker flute - A new chip breaking end mill is disclosed having an elongate cylindrically shaped body with opposing shank and cutter ends wherein at least one flute is spirally formed around the center axis of the cylindrically shaped body and the flute extends axially from the shank end to the cutting end. A cutting edge is formed by the intersection of the flute with the outer diameter of the cylindrically shaped body and extends longitudinally of the cylindrically shaped body. A concave, facing outwardly, chip breaker groove is formed in the flute and located adjacent to the cutting edge and the groove extends axially along with the cutting edge on the cylindrically shaped body. A chip guide channel is located adjacent to, and on the other side of the chip breaker groove than the cutting edge and it also extends axially along the length of the body. A longitudinally extending raised intersection is formed between the adjacent chip breaker and chip guide. Two radial lines, one drawn from the centerline of said cylindrically shaped body through the cutting edge and the other drawn from the centerline through a point on the raised intersection, have an acute included angle of from 2 to 20 degrees. The cutting end of the end mill has a radially extending cutting edge thereon which is substantially perpendicular to the central axis of the cylindrically shaped body. | 04-14-2011 |
| 20110211922 | BALL END MILL - A ball end mill in which a ball end cutting edge ( | 09-01-2011 |
| 20110217132 | ROTARY CUTTING TOOL - A rotary cutting tool or end mill is provided, the tool comprising a plurality of pairs of diametrically-opposed, symmetrical, helical flutes formed in a cutting portion of the tool body, wherein the pitch between at least one pair of adjacent helical flutes is less than or greater than the pitch of at least one other pair of adjacent helical flutes in at least one radial plane along the axial length of the flutes, a plurality of peripheral cutting edges, wherein at least one of the peripheral cutting edges has a radial rake angle different from radial rake angle of a peripheral cutting edge of a different helical flute. | 09-08-2011 |
| 20110268513 | RADIUS END MILL - Damage to a corner cutting edge or degradation of the roughness of a surface of workpiece caused by changes in the cutting edge strength of the corner cutting edge or variations of cutting load is prevented. A flute ( | 11-03-2011 |
| 20110318120 | Rotational tools for the engraving of intaglio printing plates - Improved hand tools having a rotational head assembly, which allow an artist to draw or engrave directly on a printing plate and create “random dot half-tones,” for intaglio printing purposes. The tools can be used in conjunction with the other intaglio techniques of line etching, drypoint, engraving, hard ground etching, soft ground etching, aquatint, and especially mezzotint. | 12-29-2011 |
| 20120039677 | CONTOUR END MILL - A contour end mill includes a shank portion and a cutting portion. The cutting portion defines a cutting diameter, a corner radius and a major radius. The major radius is greater than one-half of the cutting diameter. As a result, the end mill produces a much smoother finish and a reduced chip thickness. | 02-16-2012 |
| 20120148352 | END MILL - An end mill including multiple spiral flutes in a helical shape around an axis that are formed in a periphery of the top portion of an end mill body which rotates on the axis. Cutting edges are formed at peripheral side ridge portions of wall surfaces of the flutes facing a front side in an end mill rotating direction. Honing is applied along each peripheral cutting edge such that the cutting edge has a variable honing width in the direction of the axis. | 06-14-2012 |
| 20120170984 | BALL END MILL - In the tip section of an end mill body, a plurality of end cutting edges are formed. In the outer peripheral section of the end mill body, a plurality of peripheral cutting edges are formed. Some of the plurality of end cutting edges are long end cutting edges. The angle which is formed by the straight line that connects the axis to a peripheral cutting edge continuous with a long end cutting edge and by the straight line that connects the axis to a peripheral cutting edge continuous with the end cutting edge positioned in forward of the long end cutting edge in the end mill rotation direction, is larger than the angle which is formed by the tangent lines at the inner ends of the long end cutting edge and the end cutting edge positioned in forward of the long end cutting edge in the end mill rotation direction. | 07-05-2012 |
| 20120183363 | Monolithic Ceramic End Mill - End mills are disclosed which may be made monolithically of ceramic or other materials. The cutting portions of the end mills have lengths of cut that are no more than twice their cutting diameters and cores which are at least 0.7 times their cutting diameters. Their axial blades have cutting edges with negative radial rake and are separated by helical flutes. Their cutting ends have negative axial rake and are gashed ahead of center and have radial cutting edges with negative rake. Such end mills also have radiused corners and gashes transitioning from radial to axial at a flute. Methods of milling materials using such ceramic end mills are also disclosed. | 07-19-2012 |
| 20120195701 | MILLING CUTTER - A cutter includes a cutter body, a first cutting portion and a second cutting portion. The first cutting portion is used for primary machining. The second cutting portion is used for precision machining, and is formed between the cutter body and the first cutting portion. | 08-02-2012 |
| 20130017025 | END MILLAANM Azegami; TakayukiAACI Akashi-shiAACO JPAAGP Azegami; Takayuki Akashi-shi JP - Provided is an end mill wherein:
| 01-17-2013 |
| 20130071192 | END MILL - The invention provides an end mill having an improved chip discharging performance and capable of carrying out excellent cutting machining. The end mill includes an end cutting edge ( | 03-21-2013 |
| 20130078044 | MILLING CUTTER FOR CUTTING A NINETY-DEGREE SHOULDER IN A WORKPIECE - A milling cutter includes a shank portion and a cutting portion having a cylindrical outer surface. The milling cutter includes a plurality of major cutting edges extending from an end face toward the shank portion, and a plurality of minor cutting edges disposed at the end face of the cutting portion. A relief surface is formed in the cylindrical outer surface proximate a corner of the milling cutter such that the primary cutting edges forms an angle equal to 90° with respect to the end face of the milling cutter. As a result, the milling cutter is capable of cutting a perfect 90° shoulder in a workpiece. | 03-28-2013 |
| 20130108382 | END MILL | 05-02-2013 |
| 20130136548 | ROTARY CUTTING TOOL - To provide a rotary cutting tool in which a satisfactory cut state in which burrs and uncut portions are absent is obtained, even when counterboring is applied to a composite honeycomb member. A first cutting-chip discharge groove ( | 05-30-2013 |
| 20130170916 | Unequal Helix-Angle End Mill - An unequal helix-angle end mill includes a cutting part and a handle part. The cutting part is provided with a plurality of flutes, each spirally extending from the bottom end to the handle part. The face of each flute facing the cutting rotation direction is a rake face, wherein the rake face and an outer peripheral face of the cutting part are intersected to form an outer peripheral blade, and the helix-angle of at least one of the peripheral blades is different from those of the other peripheral blades. A face joined with the peripheral blade among the outer peripheral face of the cutting part is a rear face. The width B of the edge flap of each peripheral blade is equal on a plane orthogonal to a rotating axis of the end mill. The unequal helix-angle end mill has high strength, and enhances the cutting depth and durability. | 07-04-2013 |
| 20130209184 | CUTTER ELEMENTS, ROTARY MACHINE TOOLS COMPRISING SAME AND METHOD FOR MAKING SAME - A cutter element ( | 08-15-2013 |
| 20130259585 | MILLING CUTTER - A cutter for milling of workpiece includes a cutter body, a first cutting portion, and a second cutting portion formed between the cutter body and the first cutting portion. The first cutting portion carries out primary machining on the workpiece. The first and second cutting portions extend in opposite twists or helixes along a central axis of the cutter body and are rotated in opposite directions during machining. | 10-03-2013 |
| 20130294852 | COMPRESSION CUTTING TOOL - A rotating tool includes a tool body including a first end and a second end. A plurality of first helical flutes extend from the first end of the tool body, each first helical flute of the plurality of helical flutes defining a respective first cutting edge. A plurality of second helical flutes intersect with the first helical flutes at non-zero distances from the first and the second ends of the tool body, each second helical flute of the plurality of second helical flutes defining a respective second cutting edge. The first helical flutes and the second helical flutes are of opposite hands. The first helical flutes have a first pitch and the second helical flutes have a second pitch. A plurality of chip divider recesses are formed along each first cutting edge. | 11-07-2013 |
| 20140003873 | END MILL FOR CUTTING OF HIGH-HARDNESS MATERIALS | 01-02-2014 |
| 20140050541 | END MILL - Providing an end mill for reducing the use of the cutting fluid to prevent the environmental pollution. | 02-20-2014 |
| 20140072378 | MILLING CUTTER - A combination milling bit and cutter employed to machine a distal end of a workpiece is provided, in which the milling cutter includes a handle and a cutting portion formed on an end of the handle. The cutting portion includes two cutting edges; at least one of the two cutting edges comprises one cutting sub-edge for milling the distal end of the workpiece to form an end surface, and another cutting sub-edge for chamfering the distal end of the workpiece at both an annular outer chamfering surface and an annular inner chamfering surface on the distal end. The combination milling and cutting cutter device carries out both milling and cutting actions in a single operation. | 03-13-2014 |
| 20140119844 | VARIABLE LEAD END MILL - A variable lead end mill has a plurality of peripheral cutting edges with different helix angles, the variable lead end mill having a flute bottom diameter of a plurality of helix flutes making up rake faces of the plurality of the peripheral cutting edges, the flute bottom diameter increasing in an axial direction from a tool tip toward a shank. | 05-01-2014 |
| 20140126967 | ROTARY CUTTING TOOL - A rotary cutting tool or end mill is provided, the tool comprising a plurality of pairs of diametrically-opposed, symmetrical, helical flutes formed in a cutting portion of the tool body, wherein the pitch between at least one pair of adjacent helical flutes is less than or greater than the pitch of at least one other pair of adjacent helical flutes in at least one radial plane along the axial length of the flutes, a plurality of peripheral cutting edges, wherein at least one of the peripheral cutting edges has a radial rake angle different from radial rake angle of a peripheral cutting edge of a different helical flute. | 05-08-2014 |
| 20140126968 | MILLING TOOL WITH RECESSED CUTTING EDGE - A milling tool ( | 05-08-2014 |
| 20140133926 | Corner Radius End Mill - A corner radius end mill includes a blended gash extending along a cutting edge. The blended gash is formed in a corner sector of the end mill. The corner sector has a first half-sector and a second half-sector defined on opposite sides of an imaginary bisection line of the corner sector, the first and second half-sectors subtending equal angles about the imaginary bisection line. The blended gash extends from a first extremity located in the second half-sector in a direction away from the first half-sector. The blended gash blends an end gash surface and flute rake surface of the corner radius end mill. | 05-15-2014 |
| 20140161546 | Roughing and Semi-Finishing End Mill Having Serrated and Non-Serrated Cutting Teeth - An end mill having a plurality of teeth configured for both roughing and semi-finishing applications, the teeth being alternated with a plurality of flutes. At least one tooth of the plurality of cutting teeth is a serrated tooth formed with serrations along a relief surface thereof and at least one other tooth is free of serrations. Each tooth of the plurality of cutting teeth includes an actual internal cutting angle formed at an intersection of a rake cutting sub-surface and a relief surface. The actual internal cutting angle of each tooth has a greater value than an imaginary internal cutting angle formed at an intersection of imaginary extension lines of a rake recessed sub-surface and a relief surface of the same tooth. | 06-12-2014 |
| 20140205390 | MULTI-FLUTE ENDMILL - A multi-flute endmill including a cutting edge part having multiple cutting edges and flutes formed between adjacent cutting edges in a rotation direction around the tool axis O. A rake face of each cutting edge is formed from a rake face of an end cutting edge from the tool axis O side to the outer peripheral side of a shank, an adjacent rake face of a corner R edge that forms a surface different from the rake face of the end cutting edge, and an adjacent rake face of a peripheral cutting edge that forms a surface different from the rake face of the corner R edge. A gash is formed between the rake face of the end cutting edge and a flank of an end cutting edge that is adjacent on a forward side thereof in the rotation direction R. | 07-24-2014 |
| 20140212230 | TOOL - To provide a tool that can reduce the maximum value of cutting resistance when adjacent peripheral edges cut a workpiece simultaneously. A lead L of a spiral flute | 07-31-2014 |
| 20140255113 | MONOLITHIC CERAMIC END MILL - End mills are disclosed which may be made monolithically of ceramic or other materials. The cutting portions of the end mills have lengths of cut that are no more than twice their cutting diameters and cores which are at least 0.7 times their cutting diameters. Their axial blades have cutting edges with negative radial rake and are separated by helical flutes. Their cutting ends have negative axial rake and are gashed ahead of center and have radial cutting edges with negative rake. Such end mills also have radiused corners and gashes transitioning from radial to axial at a flute. Methods of milling materials using such ceramic end mills are also disclosed. | 09-11-2014 |
| 20140341662 | RADIUS END MILL - [Object] To provide a radius end mill has a good cutting sharpness, and improves a surface roughness on the machined surface. | 11-20-2014 |
| 20140356083 | Rotary Cutting Tool Having A Chip-Splitting Arrangement With Two Diverging Grooves - A rotary cutting tool, having a longitudinal axis, includes a forward cutting portion and a rearward shank portion. The cutting portion includes a peripheral surface that has a plurality of flutes recessed therein. The plurality of flutes extend helically along the longitudinal axis and form a plurality of cutting teeth. Each cutting tooth includes a cutting edge at a rotationally leading edge thereof and a chip-splitting arrangement located at the cutting edge. Each chip-splitting arrangement includes two grooves. The two grooves interrupt the cutting edge and diverge, relative to each other, therefrom in the peripheral surface on opposite sides of an associated plane that is oriented perpendicularly to the longitudinal axis. | 12-04-2014 |
| 20140369773 | MILLING CUTTER WITH STRESS RELIEFS - A cutting tool, such as a milling cutter, includes a tool body and a plurality of pockets for receiving cutting inserts. Each pocket includes a bottom support surface, an radial support surface, an axial support surface, a first corner relief between the bottom support surface and the radial support surface, and a first stress relief formed in the first corner relief at one end of the pocket. The first stress relief is formed at an angle with respect to a plane parallel to the radial support surface. The first stress relief reduces a tensile stress of the cutting tool during a machining operation. A second and third stress relief may be formed in the first corner relief and/or in a second corner relief. | 12-18-2014 |
| 20150043980 | BALL END MILL - A ball end mill comprises a gash provided at a front end portion of a main end mill body rotated about an axis; and at least one cutting edge which has a rotational trajectory around the axis that forms a convex hemispherical shape having a center on the axis. The cutting edge is formed at a peripheral edge portion of a wall surface of the gash. A difference between a first and second included angles is within ±7°, where the first included angle is formed between the axis and a straight line connecting the center with a cutting edge position at which a depth of the gash is maximal in a cross-section orthogonal to the cutting edge, and the second included angle is formed between the axis and a straight line connecting the center with a cutting edge position at which a rake angle of the cutting edge is maximal. | 02-12-2015 |
| 20150056027 | BALL END MILL - A ball end mill, which includes long and short cutting edges alternately formed, shows excellent chip discharge performance without sacrificing strength. An even number of cutting edges are formed at intervals in a circumferential direction on a front end of an end mill body rotated about an axis and have rotation trajectories formed around the axis that form a hemispherical shape. The cutting edges adjacent to each other in the circumferential direction with one cutting edge interposed are long cutting edges that intersect with each other on the axis. The other cutting edges adjacent to each other in the circumferential direction with one cutting edge interposed are short cutting edges that include inner peripheral ends at positions distant from the axis. A gash of the long cutting edge and a gash of the short cutting edge connect with each other on a front end side of the end mill body. | 02-26-2015 |
| 20150071718 | METHOD TO PRODUCE A RADIAL RUN-OUT TOOL AS WELL AS A RADIAL RUN-OUT TOOL - The radial run-out tool ( | 03-12-2015 |
| 20150078841 | MILLING CUTTER WITH A CORD OF A SPECIAL TOOTH PROFILE - A milling cutter with at least one peripheral cutting edge | 03-19-2015 |
| 20150147127 | Rotary Cutting Tool Having A Predetermined Number Of Left And Right Handed Helical Flutes And End Face Cutting Teeth - A rotary cutting tool, having a longitudinal axis, includes cutting and mounting portions. The cutting portion includes an end face surface and a peripheral surface extending therefrom. The peripheral surface includes respective pluralities of main and auxiliary flutes that extend helically with opposite hand about the longitudinal axis. The cutting portion includes a plurality of evenly circumferentially distributed end gashes and a plurality of end face cutting teeth. The number of main flutes and auxiliary flutes are different, each being wholly divisible by, and greater than, the number of end face cutting teeth. In each cross sectional view of the cutting portion an imaginary contour line defined by a peripheral contour of the peripheral surface of one of the end face cutting teeth is in rotationally aligned relationship, about the longitudinal axis, with the peripheral contour of the peripheral surfaces of all other end face cutting teeth. | 05-28-2015 |
| 20150290724 | CUTTING TOOL WITH ENHANCED CHIP EVACUATION CAPABILITY AND METHOD OF MAKING SAME - A milling cutter includes a shank and a cutting head attached to the shank. The cutting head has a plurality of helical teeth, each tooth including a cutting tip, a leading face and a rear face. A flute is defined between the leading face of a trailing tooth, and a rear face of an immediately preceding tooth. A gully of the flute is generally W-shaped in cross section to provide effective chip evacuation. A method for manufacturing the milling cutter with the W-shaped gully of the flute using a split path grinding process is also disclosed. | 10-15-2015 |
| 20150336185 | MILLING BURR - A milling burr for use in handheld machines has a shank and a cutting member of hard metal which is rigidly connected to said shank. The cutting member is provided with cutting teeth which extend in a first direction of twist. The cutting teeth are divided in cutting tooth portions by rows of tooth dividers extending in a second direction of twist. The cutting tooth portions and the tooth dividers are arranged one behind the other when seen in the peripheral direction in such a way that an overlap occurs in an in each case alternating manner when seen in the peripheral direction. | 11-26-2015 |
| 20150367427 | ROTARY CUTTING TOOL WITH HONE EDGES - A rotary cutting tool includes a shaft having and outer surface and having a longitudinal axis, a plurality of helical flutes formed in the shaft about the longitudinal axis, a plurality of helical cutting edges formed at an interface with the outer surface and a respective helical flute about the longitudinal axis, and a plurality of end cutting edges located on an axial distal end of a cutting portion of the shaft, the end cutting edges being contiguous with a corresponding one of the plurality of helical cutting edges and forming a corner in the transition between each of the end cutting edges and the corresponding one of the plurality of helical cutting edges. A hone edge extends along a portion of each of the end cutting edges, the associated corner and a portion of the corresponding one of the plurality of helical cutting edges. | 12-24-2015 |
| 20160001382 | ROTARY MILLING TOOL - Provided is a rotary milling tool capable of finishing a milled surface to produce a smooth and glossy surface. A rotary milling tool in which a plurality of chip discharge grooves ( | 01-07-2016 |
| 20160059325 | ROUGHING END MILL - Even if chips enter a gap between a flank face and a surface to be worked, the defect of the flank face or a cutting edge is suppressed by the control of the flow of the chips. A plurality of cutting edges, which are undulated in wave forms in a direction of an axis, are formed on an outer periphery of a front end portion of an end mill body rotating about the axis so that phases of the wave forms are displaced from each other in a path of rotation about the axis; flank faces of the cutting edges are covered with a coating film; and rough surface regions and smooth surface regions are alternately formed on the surface of at least portions of the coating film, which are close to the cutting edges, in the direction of the axis. | 03-03-2016 |
| 20160067796 | CORNER RADIUS END MILL - A corner radius end mill includes a blended gash extending along a cutting edge. The blended gash is formed in a corner sector of the end mill. The corner sector has a first half-sector and a second half-sector defined on opposite sides of an imaginary bisection line of the corner sector, the first and second half-sectors subtending equal angles about the imaginary bisection line. The blended gash extends from a first extremity and blends an end gash surface and flute rake surface of the corner radius end mill. The blended gash is spaced from a radial tangent point by a predetermined distance, and extends to a second extremity which is spaced apart from the axial line and the second half-sector. | 03-10-2016 |
| 20160074947 | End Mill Convex Radial Relief Surface and Corner Having Circular Arc Profile - An end mill includes a tooth having a convex radial relief surface, a corner with a circular arc profile, a rake surface and a corner relief surface. The corner relief surface extends rearward of a radial tangent plane defined in relation to the circular arc profile. | 03-17-2016 |
| 20160089728 | ROTARY CUTTING TOOL - A rotary cutting tool has a cutting tool body with a cutting end and a cutting portion adjacent to the cutting end. The cutting portion includes a first blade, which has a first finishing cutting portion and a first roughing cutting portion adjacent to the first finishing cutting portion. The cutting portion includes a second blade, which has a second finishing cutting portion and a second roughing cutting portion adjacent to the second finishing cutting portion. The first finishing cutting portion overlaps one or both of the second finishing cutting portion and the second roughing cutting portion. The first roughing cutting portion overlaps one or both of the second roughing cutting portion and the second finishing portion. | 03-31-2016 |
| 20160107264 | MICRO END MILL AND METHOD OF MANUFACTURING SAME - A micro end mill includes a shank made of a first material and a cutting tip made of a second, different material that is bonded to the shank. The first material can be, for example, carbide or high speed steel (HSS), and the second material can be, for example, cubic boron nitride (CBN), polycrystalline cubic boron nitride (PCBN), ceramic or polycrystalline diamond (PCD). The micro end mill is manufactured by producing a billet made of Superhard material using laser radiation, bonding the billet to a shank of the end mill, and removing material from the billet using laser radiation to produce a cutting tip made of the Superhard material. The laser radiation may comprise a laser beam encased in a water jet or a laser beam with a non-Gaussian intensity profile. | 04-21-2016 |
| 20160114409 | ROTARY CUTTING TOOL HAVING A CUTTING EDGE MADE OF MULTIPLE MATERIALS - The present invention relates to a multi-material rotary cutting tool ( | 04-28-2016 |
| 20160175944 | CUTTING TOOL WITH ASYMMETRIC STRUCTURES ON CUTTING TEETH | 06-23-2016 |
| 20160175948 | MULTI-FLUTE BALL END MILL | 06-23-2016 |
| 20170232532 | ROTARY CUTTING TOOL | 08-17-2017 |
