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CUTTING INSERT, TOOL BODY ON WHICH CUTTING INSERT MAY BE MOUNTED, REPLACEABLE-BLADE-TYPE CUTTING TOOL PROVIDED THEREWITH, AND BALL END MILL
CUTTING INSERT, TOOL BODY ON WHICH CUTTING INSERT MAY BE MOUNTED, REPLACEABLE-BLADE-TYPE CUTTING TOOL PROVIDED THEREWITH, AND BALL END MILL
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机译:切削刀片,可安装切削刀片的工具本体,可更换刀片式切削工具以及球头铣刀
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摘要
A cutting insert has top and bottom surfaces opposing each other and a side surface connecting them. A part of an intersecting ridge between the top and side surfaces functions as a cutting edge. On the side surface, a side surface portion adjacent to the intersecting ridge portion opposing the cutting edge intersects the top surface at an acute angle. At least on a part of a bottom surface, an inclined surface gradually approaching the top surface with increasing distance from a side surface portion on a side opposite to a cutting edge is formed. This allows a part of the cutting resistance to act on the side surface portion. As a result, friction resistance between the side surface portion and the side surface of an insert seat becomes larger, thereby suppressing a shifting of the cutting insert when cutting.
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