GH536 has been widely employed as one kind of high-performance materials; however, the poor machinability of GH536 especially substantial tool wear can still be considered as a problem. On the contrary, deep cryogenic treatment can be considered as an effective heat treatment to improve the milling cutter performances. Considering few studies that investigated the deep cryogenic treatment of the WC-Co cutters, this article experimentally investigated the effects of deep cryogenic treatment on WC-Co cutter performances in milling of superalloy GH536. The detailed discussion in terms of the microhardness before milling, the cutting forces during milling, and the tool wear and the machined surface quality after milling operation were performed based on the in-depth analysis of the experimental result comparison between the deep cryogenic treatment and the conventional tools. Some key findings were given in the end to conclude this work.

GH536已被广泛用作一种高性能材料。但是，GH536的可加工性差，尤其是刀具磨损严重，仍然可以认为是一个问题。相反，深低温处理可以被认为是改善铣刀性能的有效热处理。考虑到很少有研究对WC-Co刀具进行深低温处理的研究，本文通过实验研究了深合金热处理对GH536铣削WC-Co刀具性能的影响。关于铣削前的显微硬度，铣削过程中的切削力的详细讨论，在深入分析深冷处理与常规工具的实验结果比较的基础上，对铣削后的刀具磨损和加工表面质量进行了分析。最后给出了一些关键的发现以结束这项工作。