公开(公告)号：EP2939780A1

公开(公告)日：2015-11-04

申请号：EP13868389.1

申请日：2013-12-26

申请人： Tungaloy Corporation

发明人： BHAGATH Kedar Suresh ,  SHINJYO Yuji ,  SAITOH Isamu

IPC分类号： B23F21/14 ,  B23C5/08 ,  B23C5/20

CPC分类号： B23F21/146 ,  B23C5/08 ,  B23C5/207 ,  B23C2200/0438 ,  B23C2200/128 ,  B23C2200/203 ,  B23C2200/367 ,  B23C2210/168 ,  Y10T407/1942 ,  Y10T407/235 ,  Y10T407/24 ,  Y10T407/245

摘要： The present invention provides a cutting insert (1) including a cutting edge having an involute-curve approximate shape. A cutting edge (18) is formed so as to wholly take on a first curved shape with a first curvature radius when the cutting insert is viewed from the end surface, and is formed so that a large part of the cutting edge (18) takes on a second curved shape with a second curvature radius when the cutting insert is viewed from the side surface.

摘要翻译： 本发明提供一种包括具有渐开线曲线近似形状的切削刃的切削刀片（1）。 当从端面观察切削刀片时，切削刃（18）形成为完全具有第一曲率半径的第一弯曲形状，并且形成为使切削刃（18）的大部分 当从侧面观察切削刀片时，具有第二曲率半径的第二弯曲形状。