通过对点式冲击刀具的理论和实验分析，探讨了如何优化设计使刀具受力最合理。
The problem of design optimization of the point attach bit is discussed through theoretical analysis and discussion of experimental results.
本文通过对冲击采煤机冲击刀具的设计及其参数的研究，设计了较为合理的楔形冲击刀具。
Wedge impact blade of impact cutting coal machine was designed and its working process was stimulated.
切削刀具最重要的性能是在高温下能保持的硬度、耐磨损和冲击韧性。
The most important properties of cutting tools are hardness at high temperature, wear resistance, and impact strength.
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