什么是刀具的后角，后角大小对切削有什么影响？

可可可乐

刀具的后角是指后刀面与切削平面之间的夹角。后角增大，后刀面与工件加工表面之间的摩擦减小，加工表面质量提高，但刀具的楔角减小，刀刃强度降低。后角的大小应根据加工材料和加工要求选择，精加工时后角可大些，粗加工时后角应小些。

Georgustek

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Georgustek

Georgustek ??? 2025-10-19 10:24
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