碳纤维增强PEEK薄壁结构件加工工艺研究

对PEEK/CA450材料特性、切削性能进行了分析,通过加工试验研究了该材料典型薄壁零件的工艺特点、切削参数及热处理过程,优选出最佳的工艺参数。试验结果表明:优化零件结构设计可以有效降低材料内应力和加工难度;采用PCD刀具及合适的切削参数可以保证该材料薄壁零件的加工质量;加工过程中的热处理有助于提高产品的成品率和尺寸精度。采用优化后的工艺方法,最终成功加工出符合设计性能要求的PEEK/CA450薄壁零件。

Machining Process of Carbon Fiber Reinforced PEEK Thin-Walled Structure Component

The Material features and the machinability of PEEK/CA450 were analysed in this paper. The typical thin-wall parts technics characteristics, cutting parameters, and the heat treatment process of this material were studied. Then the optimum technological parameters were decided. The experiment results show three points. First, optimization of parts structure can decrease the internal stress and machining difficulty. Second the PCA tool and proper cutting parameters can ensure the machining quality of the thin-wall parts. Third the heat treatment in the machining process can improve parts finished rates and dimension accuracy. The PEEK/CA450 thin-wall parts that qualified complex design performance requirements is machined by the optimized machining process.