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公开(公告)号：DK0790878T3
公开(公告)日：2000-03-27
申请号：DK95930269
申请日：1995-08-24
Applicant: KENNAMETAL INC
Inventor： SMITH WILLIAM E , VOGEL SCOTT W , SHOMAKER ROBERT L
Abstract: A milling cutter for cutting a workpiece in both right and left-handed rotary directions is provided that comprises a rotatable cutter body having at least one pair of right and left-handed insert seats disposed on its periphery, an indexable wedge for each pair of right and left-handed insert seats, and a mounting screw for each of the wedges for securing the wedges in a clamping position with respect to a right or left-handed insert seat. Each of the wedges may be used to secure an insert in the right or left-handed seat of its respective seat pair by loosening or removing the mounting screw, and turning the wedge 180 DEG . Each wedge includes a front end for wedgingly engaging an insert in either the right or left-handed seat, and a back end for wedgingly engaging an opposite surface of the unused insert seat in order to more securely clamp the insert in place. The back end of each wedge includes an offset portion that is receivable in and semi-complementary in shape to the unused insert seat for still more stability.
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公开(公告)号：AT179352T
公开(公告)日：1999-05-15
申请号：AT96904567
申请日：1996-02-05
Applicant: KENNAMETAL INC
Inventor： VOGEL SCOTT W , SHOMAKER ROBERT L
Abstract: An insert for use in a ball nose end mill is provided that includes an insert body having a top wall, a bottom wall, and at least one arcuate side wall. An arcuate cutting edge is defined at an intersection between the top and side walls that includes a plurality of sinusoidal undulations for reducing cutting forces, and vibration, and enhancing the breaking and removal of chips removed from a workpiece during a cutting operation. An end portion of the insert crosses the axis of rotation when the insert is mounted in the seat of an end mill body, and the undulations reduce the considerable shear forces applied to the cutting edge at this location. The cutting edge has a profile which follows the contour of a sphere to permit machining a rounded cut. The side wall of the insert body includes an upper relief portion disposed directly under the cutting edge, with a relief angle for preventing the undulations from making unwanted striations or tool marks in the sidewalls of the rounded cut.
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公开(公告)号：BR9607980A
公开(公告)日：1998-01-13
申请号：BR9607980
申请日：1996-02-05
Applicant: KENNAMETAL INC
Inventor： VOGEL SCOTT W , SHOMAKER ROBERT L
Abstract: An insert for use in a ball nose end mill is provided that includes an insert body having a top wall, a bottom wall, and at least one arcuate side wall. An arcuate cutting edge is defined at an intersection between the top and side walls that includes a plurality of sinusoidal undulations for reducing cutting forces, and vibration, and enhancing the breaking and removal of chips removed from a workpiece during a cutting operation. An end portion of the insert crosses the axis of rotation when the insert is mounted in the seat of an end mill body, and the undulations reduce the considerable shear forces applied to the cutting edge at this location. The cutting edge has a profile which follows the contour of a sphere to permit machining a rounded cut. The side wall of the insert body includes an upper relief portion disposed directly under the cutting edge, with a relief angle for preventing the undulations from making unwanted striations or tool marks in the sidewalls of the rounded cut.
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公开(公告)号：AU3371995A
公开(公告)日：1996-06-06
申请号：AU3371995
申请日：1995-08-24
Applicant: KENNAMETAL INC
Inventor： SMITH WILLIAM E , VOGEL SCOTT W , SHOMAKER ROBERT L
Abstract: A milling cutter for cutting a workpiece in both right and left-handed rotary directions is provided that comprises a rotatable cutter body having at least one pair of right and left-handed insert seats disposed on its periphery, an indexable wedge for each pair of right and left-handed insert seats, and a mounting screw for each of the wedges for securing the wedges in a clamping position with respect to a right or left-handed insert seat. Each of the wedges may be used to secure an insert in the right or left-handed seat of its respective seat pair by loosening or removing the mounting screw, and turning the wedge 180 DEG . Each wedge includes a front end for wedgingly engaging an insert in either the right or left-handed seat, and a back end for wedgingly engaging an opposite surface of the unused insert seat in order to more securely clamp the insert in place. The back end of each wedge includes an offset portion that is receivable in and semi-complementary in shape to the unused insert seat for still more stability.
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公开(公告)号：AT185729T
公开(公告)日：1999-11-15
申请号：AT95930269
申请日：1995-08-24
Applicant: KENNAMETAL INC
Inventor： SMITH WILLIAM E , VOGEL SCOTT W , SHOMAKER ROBERT L
Abstract: A milling cutter for cutting a workpiece in both right and left-handed rotary directions is provided that comprises a rotatable cutter body having at least one pair of right and left-handed insert seats disposed on its periphery, an indexable wedge for each pair of right and left-handed insert seats, and a mounting screw for each of the wedges for securing the wedges in a clamping position with respect to a right or left-handed insert seat. Each of the wedges may be used to secure an insert in the right or left-handed seat of its respective seat pair by loosening or removing the mounting screw, and turning the wedge 180 DEG . Each wedge includes a front end for wedgingly engaging an insert in either the right or left-handed seat, and a back end for wedgingly engaging an opposite surface of the unused insert seat in order to more securely clamp the insert in place. The back end of each wedge includes an offset portion that is receivable in and semi-complementary in shape to the unused insert seat for still more stability.
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Patent Agency Ranking
公开(公告)号：CA2284869A1
公开(公告)日：1998-10-29
申请号：CA2284869
申请日：1998-04-07
Applicant: KENNAMETAL INC
Inventor： HARTSHORN JEFFREY E , VOGEL SCOTT W , ADCOCK CRAIG S , FOWLER JEREMY L
Abstract: An adjustable lead angle toolholder is disclosed for selectively cutting a workpiece at 30~, 45~, or 60~ angles. The toolholder may have a rotatable, cylindrical endmill body (5) that includes a radially-oriented wall (9) or a stationary, square shank having a planar wall on its distal end. The toolholder further includes a cutting insert (18) having at least one linear cutting edge (18), and a mounting assembly (11) for pivotally mounting the insert (18) onto the wall (9) of the endmill body (5) such that a lead angle of the linear cutting edge (19) is adjustable with respect to the outer periphery of the toolholder body.
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公开(公告)号：AU4864096A
公开(公告)日：1996-10-16
申请号：AU4864096
申请日：1996-02-05
Applicant: KENNAMETAL INC
Inventor： VOGEL SCOTT W , SHOMAKER ROBERT L
Abstract: An insert for use in a ball nose end mill is provided that includes an insert body having a top wall, a bottom wall, and at least one arcuate side wall. An arcuate cutting edge is defined at an intersection between the top and side walls that includes a plurality of sinusoidal undulations for reducing cutting forces, and vibration, and enhancing the breaking and removal of chips removed from a workpiece during a cutting operation. An end portion of the insert crosses the axis of rotation when the insert is mounted in the seat of an end mill body, and the undulations reduce the considerable shear forces applied to the cutting edge at this location. The cutting edge has a profile which follows the contour of a sphere to permit machining a rounded cut. The side wall of the insert body includes an upper relief portion disposed directly under the cutting edge, with a relief angle for preventing the undulations from making unwanted striations or tool marks in the sidewalls of the rounded cut.
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公开(公告)号：CA2212217C
公开(公告)日：2000-10-31
申请号：CA2212217
申请日：1996-02-05
Applicant: KENNAMETAL INC
Inventor： SHOMAKER ROBERT L , VOGEL SCOTT W
Abstract: An insert for use in a ball nose end mill (1) is provided that includes an insert body (22) having a top wall (24), a bottom wall (28) and at least one arcuate side wall (30). An arcuate cutting edge (34) is defined at an intersection between the top and side walls that includes a plurality of sinusoidal undulations (36) for reducing cutting forces, and vibration, and enhancing the breaking and removal of chips removed from a workpiece (66) during a cutting operation. An end portion (67) of the insert crosses the axis of rotation (A) when the insert is mounted in the seat of an end mill body (3), and the undulations (36) reduce the considerable shear forces applied to the cutting edge (34) at this location. The cutting edge has a profile which follows the contour of a sphere to permit machining a rounded cut. The side wall (30) of the insert body includes an upper relief portion (44) disposed directly under the cutting edge, with a relief angle for preventing the undulations from making unwanted striations or tool marks in the sidewalls of the rounded cut.
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公开(公告)号：ES2138747T3
公开(公告)日：2000-01-16
申请号：ES95930269
申请日：1995-08-24
Applicant: KENNAMETAL INC
Inventor： SMITH WILLIAM E , VOGEL SCOTT W , SHOMAKER ROBERT L
Abstract: A milling cutter for cutting a workpiece in both right and left-handed rotary directions is provided that comprises a rotatable cutter body having at least one pair of right and left-handed insert seats disposed on its periphery, an indexable wedge for each pair of right and left-handed insert seats, and a mounting screw for each of the wedges for securing the wedges in a clamping position with respect to a right or left-handed insert seat. Each of the wedges may be used to secure an insert in the right or left-handed seat of its respective seat pair by loosening or removing the mounting screw, and turning the wedge 180 DEG . Each wedge includes a front end for wedgingly engaging an insert in either the right or left-handed seat, and a back end for wedgingly engaging an opposite surface of the unused insert seat in order to more securely clamp the insert in place. The back end of each wedge includes an offset portion that is receivable in and semi-complementary in shape to the unused insert seat for still more stability.
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公开(公告)号：AU683583B2
公开(公告)日：1997-11-13
申请号：AU3371995
申请日：1995-08-24
Applicant: KENNAMETAL INC
Inventor： SMITH WILLIAM E , VOGEL SCOTT W , SHOMAKER ROBERT L
Abstract: A milling cutter for cutting a workpiece in both right and left-handed rotary directions is provided that comprises a rotatable cutter body having at least one pair of right and left-handed insert seats disposed on its periphery, an indexable wedge for each pair of right and left-handed insert seats, and a mounting screw for each of the wedges for securing the wedges in a clamping position with respect to a right or left-handed insert seat. Each of the wedges may be used to secure an insert in the right or left-handed seat of its respective seat pair by loosening or removing the mounting screw, and turning the wedge 180 DEG . Each wedge includes a front end for wedgingly engaging an insert in either the right or left-handed seat, and a back end for wedgingly engaging an opposite surface of the unused insert seat in order to more securely clamp the insert in place. The back end of each wedge includes an offset portion that is receivable in and semi-complementary in shape to the unused insert seat for still more stability.
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