薄壁镂空隔墙零件的加工工艺探索

Exploration on Processing Technology of Thin-walled Hollow Partition Wall Parts

隔墙零件作为微波组件的重要结构件,具有薄壁、镂空、高精度的特点。传统的加工工艺路线是先数铣加工隔墙台阶,再采用线切割加工隔墙内外形。该工艺方法由于对零件变形控制不足,线切割加工效率低,在批量生产时加工精度与加工效率无法满足要求。以某典型隔墙零件为例,研究探索出了一套隔墙零件的高效加工工艺方案。该方案通过合理设计工装,采用退火整平工艺,选用合理的切削参数分步数铣加工,使隔墙成品率大幅提升,加工周期大幅缩短。该工艺方案对其他弱刚性薄壁类、框架类零件的加工具有一定的借鉴意义。

Partition wall parts,as important structural parts of microwave components,had the characteristics of thin wall,hollow and high precision.The traditional processing scheme was to mill the steps of the partition wall firstly,and then used wire cutting to process the inner shape of the partition wall.Due to the insufficient control of the deformation of the parts and the low processing efficiency of the wire cutting process,the processing accuracy and processing efficiency could not meet the requirements during mass production.Took a typical partition wall part for example,we researched and explored a set of efficient processing scheme for partition wall parts.Through the rational design of tooling,the use of annealing and leveling process,and the selection of reasonable cutting parameters for step-by-step milling,this processing scheme greatly improved the yield rate and shortened the processing cycle of partition wall parts.This processing scheme had certain reference significance for the processing of other weakly rigid parts with thin-walled and frame-like structures.