钛合金薄壁锥形滤网的数控加工

NC Machining of Thin-walled Cone Filter of Titanium Alloy

通过分析钛合金薄壁锥形滤网的加工难点,针对加工过程出现的网格形位偏移、网格破裂、厚度不均和厚度超差等缺陷,制定了该零件的数控加工工艺。采用提高零件自身结构刚度、装夹刚度以及销孔周向准确定位的优化措施,有效解决了因加工震颤而导致网格形状位置偏移和破网的问题,保证了薄壁滤网壁厚尺寸精度。优化后的加工工艺是保证钛合金薄壁锥形滤网加工质量的关键,可为类似钛合金薄壁零件的加工提供参考。

Through analyzing the processing difficulties of the thin-walled cone filter of titanium alloy,aiming at the defects of grid shape and position deviation,grid fracture,thickness irregularity and thickness deviation in the processing process,the numerical control processing technology of the part is developed.The optimization measures to improve the structural and the clamping rigidity of the part,and to accurately position the pin hole are taken to effectively solve the problems of the part′s grid shape and position deviation and net breakage caused by machining vibration.At the same time,the dimensional accuracy of the wall can be ensured.The optimized processing technology is the key to ensure the processing quality of thin-walled cone filter of titanium alloy,and could provide a reference for similar parts processing.