气缸套平台珩磨网纹片状覆盖缺陷的产生原因及预防

Reason and Countermeasure of Imperfection to Sheet cover for Cylinder Liners Plateau Honing Cross Hatch

表面片状覆盖缺陷严重影响了气缸套平台珩磨网纹结构的预期功能。本文分析了片状覆盖缺陷产生的主要原因为珩磨加工过程造成的挤压变形,挤压变形的结果使表面产生一层片状覆盖物,在表面呈现出严重的撕裂和存在大量的金属碎片。并指出使用先进的刷珩技术能有效去除表面的片状覆盖缺陷,在现有技术条件下可采用碳化硅砂条、采用两道珩磨工序等方法降低片状覆盖的影响。

The imperfection to sheet cover badly affected anticipative function of cylinder liners plateau honing cross hatch.The article analyzed the main reason to sheet cover, it was extrusion and distortion in the course of honing. The result of extrusion and distortion induced sheet cover, a mass of badly avulsion and metal fragment was unfolded on surface. The article indicated that the advanced brush honing could effective eliminate the imperfection to sheet cover. In the curium technique, we may adopt carborundum honing stones and two working procedure of honing to reduce the influence of sheet cover.