不同的切削刀具材料在不同的温度点开始软化。
Various cutting tool materials begin to lose their hardness at different temperatures.
因此切削刀具材料应具有高耐磨性以提高刀具的有效寿命。
The cutting tool material should therefore have high abrasion resistance to improve the effective life of the tool.
讨论这些材料性能之前，先看一下作为切削刀具材料应具备哪些重要特性。
Before we discuss the properties of these materials, let us look at the important characteristics expected of a cutting tool material.
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