摘要
某小型航空发动机气缸体由于缸孔采用硬铬镀层,使其内孔磨削成为制约该型号发动机性能的关键工艺。针对该气缸体的特殊结构及镀层特点,采用合理的装夹方式及磨削工艺参数,在精密内圆磨床上采用树脂金刚石(RVD)砂轮实现了对硬铬镀层内孔的磨削。实践证明,该工艺方法解决了铝基体上硬铬镀层的精密加工难题,提高了加工效率,改善了表面尺寸形状精度和表面粗糙度。
Because of hard chromium plating with cylinder block of mini aero-engine, the hard machining of process of grinding is a key which affects its performance. According to the special construction of cylinder block and property of composite plating, the press of grinding on hard chromium plating with cylinder block of mini aero-engine by resin bond RVD wheels has been analyzed and studied in the paper. Then the parameter of grinding tools and grinding process have been given, the issue of grinding hard chromium plating has been solved in internal grinder. As a result, high grinding efficiency and well surface quality have been finished.
出处
《组合机床与自动化加工技术》
2007年第12期89-90,共2页
Modular Machine Tool & Automatic Manufacturing Technique
关键词
树脂金刚石砂轮
磨削
气缸体
硬铬镀层
RVD wheels
grinding
cylinder block
hard chromium plating
