CUTTING INSERT, CUTTING TOOL, AND METHOD FOR PRODU

专利名称：CUTTING INSERT, CUTTING TOOL, AND

METHOD FOR PRODUCING CUT ARTICLE

发明人：ISHI, Hirohisa申请号：EP14864716.7申请日：20141118公开号：EP3072618A1公开日：20160928

专利附图：

摘要：A cutting insert (1) according to an embodiment has a lower surface (2), anupper surface (3), a side surface (4) disposed between the lower surface (2) and the uppersurface (3), a pair of corner cutting edges (5) located along an intersection of the upper

surface (3) and the side surface (4), and a major cutting edge (6) located between the pairof corner cutting edges (5). The major cutting edge (6) has a downwardly dentedcurvilinear part (61) and a pair of straight parts (62) respectively extending from thecurvilinear part (61) toward the pair of corner cutting edges (5) in a side view. A portion(6p) of the curvilinear part (61) located lowermost is close to one corner cutting edge(5b) in the side view.

申请人：Kyocera Corporation

地址：6, Takeda Tobadono-cho Fushimi-ku Kyoto-shi, Kyoto 612-8501 JP

国籍：JP

代理机构：Viering, Jentschura & Partner mbB Patent- und Rechtsanwälte

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