C_f/SiC陶瓷基复合材料车削加工工艺研究  

Research on turning technology of C_f/SiC ceramic matrix composites

作　　者：王平 张权明 李良 

机构地区：[1]西安航天发动机厂,陕西西安710100

出　　处：《火箭推进》2011年第2期67-70,共4页Journal of Rocket Propulsion

基　　金：国家航天技术支撑项目

摘　　要：为满足高性能、轻质化的设计要求,开展了C_f/SiC基复合材料-金属连接工艺试验件的试验工作,阐述了C_f/SiC陶瓷基复合材料喷管车削加工难点和解决方案。理论分析和试验验证表明,通过选择合理的机械加工方法、人造金刚石聚晶车刀及冷却润滑方法,采用合适的切削用量和刀具几何参数,能够实现陶瓷基复合材料喷管连接部位的车削加工,保证C_f/SiC陶瓷基复合材料喷管连接部位的表面质量和尺寸精度及形状精度。The technology of C0/SiC ceramic matrix composites joined up with metal were researched and tested to meet the design requirements of high performance and light weight. Several machining methods were compared. The turning quality was improved. The difficulties and solutions for Cf/SiC nozzle turning are discussed. The appropriate turning parameters and angles of mining-tool are proposed. Theoretic analysis and testing results indicate that the reasonable machining method, modified synthetic polycrystalline （PCD） diamond turning-tool, appropriate cooling and lubrication method, accurate turning parameters and turning-tool geometric parameters, perfect turning of ceramic matrix composites nozzle joint can satisfy the requirements of surface quality, and the dimensional and shape accuracy of Cf/SiC nozzle joint can be achieved.

关 键 词：陶瓷基复合材料 加工的难点 车削加工工艺 

分 类 号：V257-33[一般工业技术—材料科学与工程]