Ceramic end mill and method for cutting difficult-to-cut material using the same专利检索- .高速铣削专利检索查询-专利查询网

Ceramic end mill and method for cutting difficult-to-cut material using the same
申请号	US15521563	申请日	2015-10-21	公开(公告)号	US09975187B2	公开(公告)日	2018-05-22
申请人	MITSUBISHI HITACHI TOOL ENGINEERING, LTD.;			发明人	Kaname Suehara;
摘要	Ceramic end mill with cutting edge portion including gashes between cutting edges and adjacent in a rotation direction. Center cut edges are formed at end cutting edges close to and facing rotation axis O. Center grooves are formed on rear sides of center cut edges and end cutting edges in the rotation direction continuous with a radial direction. The center grooves are continuous with positions where end cutting edge second surfaces face or approach rotation axis O. End cutting edge second surfaces are laid between center cut edges and end cutting edges. Center grooves are formed between end cutting edge second surfaces and center cut edges positioned on a rear side of end cutting edge second surfaces in the rotation direction. The center grooves pass on rotation axis O. Center grooves double as rake faces of the respective center cut edges and are continuous with the gashes.
权利要求
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