发明名称 ROTARY TOOL, IN PARTICULAR, DRILL
摘要 FIELD: process engineering. ^ SUBSTANCE: proposed tool comprises cutting head extending along rotational axis and having several main cutting edges extending radially outward, each terminating on cutting head circumference by cutting angle with angular chamfer. To increase durability of tool and decrease burrs, angular chamfers on cutting angle of appropriate main cutting edge differ, namely, both roughing and finishing chamfers. Note here that roughing chamber is larger than that of finishing. ^ EFFECT: higher quality reduced burring. ^ 10 cl, 6 dwg
申请公布号 RU2445192(C2) 申请公布日期 2012.03.20
申请号 RU20100119500 申请日期 2008.10.15
申请人 KENNAMETAL INK. 发明人 KAUPER KHERBERT RUDOL'F
分类号 B23B51/02 主分类号 B23B51/02
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