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公开(公告)号：US20190210124A1
公开(公告)日：2019-07-11
申请号：US15864600
申请日：2018-01-08
Applicant: Kennametal Inc.
Inventor： Joseph Slusarcyk , Thomas J. Long, II , Tim J. Marshall , Ronald Louis Dudzinsky
CPC classification number: B23C5/202 , B23C5/109 , B23C5/207 , B23C5/22 , B23C5/2221 , B23C2200/0416 , B23C2200/0438 , B23C2200/08 , B23C2200/125 , B23C2200/168 , B23C2210/0414 , B23C2210/0428 , B23C2210/045 , B23C2210/28 , B23C2226/27 , B23C2240/24
Abstract: A compression milling cutter includes a shank and a front cutting portion that terminates at a leading end of the milling cutter. The front cutting portion has a first circumferential row of one or more insert receiving pockets proximate a leading end of the milling cutter, and a second circumferential row of one or more insert receiving pockets, each insert receiving pocket configured to receive a respective indexable cutting insert. The cutting insert mounted in the first circumferential row has a positive axial rake angle, A, and the indexable cutting insert mounted in an insert pocket of the second circumferential row has a negative axial rake angle, B. Because of the different axial rake angles, chips generated during a machining operation flow in opposite directions, thereby creating a compression zone disposed between the first and second circumferential rows. This compression zone replicates the cutting action of a solid end mill, particularly when machining fiber reinforced plastic materials.
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公开(公告)号：US10525539B2
公开(公告)日：2020-01-07
申请号：US15864600
申请日：2018-01-08
Applicant: Kennametal Inc.
Inventor： Joseph Slusarcyk , Thomas J. Long, II , Tim J. Marshall , Ronald Louis Dudzinsky
Abstract: A compression milling cutter includes a shank and a front cutting portion that terminates at a leading end of the milling cutter. The front cutting portion has a first circumferential row of one or more insert receiving pockets proximate a leading end of the milling cutter, and a second circumferential row of one or more insert receiving pockets, each insert receiving pocket configured to receive a respective indexable cutting insert. The cutting insert mounted in the first circumferential row has a positive axial rake angle, A, and the indexable cutting insert mounted in an insert pocket of the second circumferential row has a negative axial rake angle, B. Because of the different axial rake angles, chips generated during a machining operation flow in opposite directions, thereby creating a compression zone disposed between the first and second circumferential rows. This compression zone replicates the cutting action of a solid end mill, particularly when machining fiber reinforced plastic materials.
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