20CrMnTi渗碳淬火55hrc,120圆,用什么刀头车削好?

2025-04-03 22:32:54
推荐回答(1个)
回答1:

在切削淬硬钢的应用领域,陶瓷刀具和CBN刀具是可以同时选择的,因此进行成本效益和加工质量分析非常必要,以确定哪一种材料更经济。PCBN刀具材料切削性能优于Al2O3陶瓷刀,陶瓷刀具具有良好的热化学稳定性,但却不及PCBN刀具的韧性和硬度。一般从加工硬度上来说,在切削硬度低于50HRC以下和小切深小进给情况下的淬火钢工件时,陶瓷刀具是较好的选择。PCBN刀具适合于工件硬度高于50HRC情况,尤其是对于自动化加工和高精度加工时更为重要。除此之外,在相同后刀面磨损情况下,PCBN刀具切削后的工件表面残余应力也比陶瓷刀具相对稳定。 另外陶瓷刀具尽量避免在半精加工和粗加工用,而立方氮化硼整体聚晶刀片可以适合断续切削,重载粗加工(摘自:华菱超硬)。

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