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发明授权
US08469637B2 Cutting insert having non-symmetrical back side face portion and cutting tool comprising the same 有权
具有非对称背面部分的切削刀片和包括该切削刀片的切削刀具

Cutting insert having non-symmetrical back side face portion and cutting tool comprising the same
摘要：
A cutting insert has an upper face and a lower face; a front side face portion and a back side face portion, the front and back side face portions connecting the upper face and the lower face; and a through-hole passing through the upper face and the lower face. A cutting edge is formed in the front side face portion, and the back side face portion is provided with a first inclined face and a second inclined face which are inclined forwardly at different angles, respectively, with respect to a plane normal to a rotational axis. The first inclined face is longer than the second inclined face so that the back side face portion has a non-symmetrical convex “V” shape.
摘要（中）：

切削刀片具有上表面和下表面; 前侧面部分和后侧面部分，前后面部分连接上表面和下表面; 以及穿过上表面和下表面的通孔。 在前侧面部形成有切削刃，后侧面部设有分别相对于与旋转轴垂直的平面以不同的角度向前倾斜的第一倾斜面和第二倾斜面 。 第一倾斜面比第二倾斜面长，使得背面面部具有非对称的凸形“V”形状。

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