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采用高硬材料切削过程中常用的2种刀具材料CBN和YG610,应用缓进给的模式对高硬喷涂层进行切削试验。试验结果表明:采用小进给切削模式YG610刀具切削高硬热喷涂层可以获得较理想的刀具耐用度,并且加工表面质量可以达到Ra1以下,具备了以车代磨的基本条件。高硬材料切削常用的刀具CBN在切削过程中出现了较严重的非正常破损现象。通过对试验现象的分析,可以认为冲击性和高硬度的同时存在是喷涂层切削的最重要特性。因此,喷涂层切削刀具需要同时具备较高的韧性和硬度。
Using two kinds of tool materials CBN and YG610 which are commonly used in the cutting process of high-hardness materials, the cutting test of high-hardness sprayed coatings was conducted by using the mode of slow feed. The test results show that the YG610 cutting tool can achieve better tool durability with the cutting tool YG610, and the surface quality can reach below Ra1. Cutting tools commonly used in high-hardness CBN cutting material during the more serious abnormal damage phenomenon. Through the analysis of the test phenomenon, it can be considered that the simultaneous presence of impact and high hardness is the most important feature of the spray coating cutting. Therefore, spray coating cutting tools need to have both high toughness and hardness.