切削インサート、切削工具および切削加工物の製造方法,申请号JP20140549859-传众专利搜索

切削インサート、切削工具および切削加工物の製造方法

申请公布号：JP5905123(B2)

申请号：JP20140549859

申请日期：2013.11.27

申请公布日期：2016.04.20

申请人：

京セラ株式会社

发明人：石寛久

分类号：B23C5/20;B23C5/06

主分类号：B23C5/20

摘要：A cutting insert according to an embodiment of the present invention has an upper surface, a lower surface, a side surface connected to each of the upper surface and the lower surface, and a cutting edge having sequentially a corner cutting edge, a first straight cutting edge, a second straight cutting edge, and a third straight cutting edge, which are located along an intersection of the upper surface and the side surface and intersect one another at an obtuse angle. The upper surface has a first inclined surface extending along the first straight cutting edge, a second inclined surface extending along the second straight cutting edge, and a third inclined surface extending along the third straight cutting edge. An inclination angle of the second inclined surface with respect to the lower surface is larger than an inclination angle of each of the first inclined surface and the third inclined surface with respect to the lower surface.