公开(公告)号：US20020141839A1

公开(公告)日：2002-10-03

申请号：US09999544

申请日：2001-10-23

Applicant: Allied Machine & Engineering Corp.

Inventor： Robert McKinley ,  Joseph P. Nuzzi ,  Timothy G. Stokey

IPC: B23B051/02

CPC classification number: B23B51/0009 ,  B23B2251/48 ,  B23B2251/50 ,  Y10S408/713 ,  Y10T408/906 ,  Y10T408/9097 ,  Y10T408/90993

Abstract: The present invention provides a novel drill insert having chipbreakers, or chip splitting grooves formed through the cutting surfaces. The cutting tool insert has a specialized geometry including a chip splitting groove formed at a negative rake angle. The chip splitting grooves increase the cutting efficiency of the tool while allowing the edge strength to be increased while also allowing higher feed rates.

Abstract translation: 本发明提供了一种新颖的钻头插入件，其具有碎裂装置或通过切割表面形成的切屑分离槽。 切削刀具插入件具有专门的几何形状，包括以负前角形成的切屑分离槽。 切屑分割槽增加了刀具的切削效率，同时允许边缘强度增加同时还允许更高的进给速率。