数控刀具磨损的判断方法都有哪些?

2025-03-16 12:53:26
推荐回答(1个)
回答1:

1、刀具寿命表(以加工工件数量为依据),一些高端装备制造业或者单品批量生产企业用它来指导生产,此方法适合加工工件昂贵的航空航天,汽轮机,汽车关键部件如发动机等生产企业。
2、看加工,如果加工过程中,冒断续的无规则火星,说明刀具已经磨损,可根据刀具平均寿命及时换刀。
3、看铁屑颜色,铁屑颜色改变,说明加工温度已经改变,可能是刀具磨损。
4、看铁屑形状,铁屑两侧出现锯齿状,铁屑不正常卷曲,铁屑变得更细碎,这些现象都是刀具磨损的判断依据。
5、看工件表面,出现光亮痕迹,但粗糙度并和尺寸并没有大的变化,这其实也是刀具已经磨损。
6、听声音,加工震动加剧,刀具不快时候会产生异响。这时要留意避免“扎刀”,造成工件报废。
7、观察机床负载,如有明显增量变化,说明刀具已经磨损。
此外,刀具切出时工件产生毛边严重,粗糙度下降,工件尺寸变化等等明显现象也是刀具磨损的判定标准。

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