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公开(公告)号:US20080219791A1
公开(公告)日:2008-09-11
申请号:US12044529
申请日:2008-03-07
申请人: Kazuchika NASU , Makoto Abe , Masaaki Jindai
发明人: Kazuchika NASU , Makoto Abe , Masaaki Jindai
IPC分类号: B23B51/00
CPC分类号: B23B27/141 , B23B51/048 , B23B2200/086 , B23B2251/50 , Y10T407/235 , Y10T408/905
摘要: An indexable insert for a drill includes a chip breaker for disposing chips, provided at an upper face thereof along a cutting edge. The chip breaker has at least one recess. The recess is retracted from an end of the chip breaker near the cutting edge toward the center of the insert by 0.2 mm or greater, or an end of the recess near a center hole of the insert communicates with the center hole.
摘要翻译: 用于钻头的可转位插入件包括用于设置切屑的切屑破碎机,其设置在切削刃的上表面处。 断屑器具有至少一个凹槽。 凹槽从切割刃附近的切屑边缘的一端朝向插入件的中心缩回0.2mm以上,或者插入件的中心孔附近的凹部的一端与中心孔连通。