公开(公告)号：US3882580A

公开(公告)日：1975-05-13

申请号：US41821973

申请日：1973-11-23

Applicant: SANDVIK AB

Inventor： LUNDGREN EVERT GUSTAV

IPC: B23B27/22 ,  B23B27/14 ,  B26D1/00

CPC classification number: B23B27/143 ,  B23B2200/083 ,  B23B2200/202 ,  Y10T407/23 ,  Y10T407/235 ,  Y10T407/245

Abstract: In a cutting insert having a cutting corner and associated cutting edge, together with a chip-breaking groove in the chip face of the insert, the improvement consists in giving a part of the cutting edge and associated chip-breaker a smaller rake angle than that of that part of the insert which is essentially active during a cutting operation.

Abstract translation: 在具有切割角和相关联的切割刃的切削刀片中，与插入件的切屑面中的切屑槽一起，改进在于使切削刃和相关的切屑破碎机的一部分具有比其更大的前角 在切割操作期间基本上是活动的插入件的该部分。

公开(公告)号：US3866282A

公开(公告)日：1975-02-18

申请号：US35101273

申请日：1973-04-13

Applicant: SANDVIK AB

Inventor： LUNDGREN EVERT GUSTAV

IPC: B23B27/22 ,  B23B27/14 ,  B26D1/00

CPC classification number: B23B27/143 ,  Y10T407/23 ,  Y10T407/245

Abstract: An indexible cutting insert is given applicability to perform under varying working conditions by giving the corner part a smaller rake angle gamma than the remaining parts of the cutting edge, the rake angle continuously decreasing in the direction of the corner in a transition zone which may extend up to one-third of the total length of the appertaining edge.

Abstract translation: 赋予可转位的切削刀片适用于在变化的工作条件下执行，使得角部比切削刃的剩余部分具有更小的前角γ，前角在过渡区中的角部方向上连续减小，该过渡区可以延伸 高达三分之一的总长度。