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现在的一般磨削方法导致已加工表面的内应力、热裂纹、烧伤和其它损害的产生,极大地影响加工零件的质量。本文叙述了具有特殊运动学和磨削速度较低的低温精密磨削法(LPG)。这一方法是以低切削温度(低于370K)、高质量的表面光洁度、平面度、高精度和高加工效率为特征的。上述方法对于磨削和研磨各种刀具材料,例如硬质合金、陶瓷、SS,超硬合金等等都非常有效。本文给出了刀具材材的一般磨削法和低温精密磨削法之间的比较结果。
The current general grinding methods result in internal stresses, hot cracks, burns and other damage on the machined surface, greatly affecting the quality of the machined parts. This article describes cryogenic grinding (LPG) with a special kinematic and low grinding speed. This method is characterized by low cutting temperature (less than 370K), high quality surface finish, flatness, high precision and high processing efficiency. The above method is very effective for grinding and grinding various tool materials such as cemented carbide, ceramics, SS, cemented carbide and the like. This article gives a comparison of the general grinding method of the tool material and the low-temperature precision grinding method.