云南读者高军来信说，希望本刊介绍有关薄壁零件铣削的夹具及加工经验。在机械加工中，经常会遇到薄壁壳体类零件的板上实测平面度为0．1～0．2mm，严重影响了产品质端面铣削加工，如图1、2所示。两件的壁厚为6mm量。为此，我厂设计制作了专用铣床夹具，保证了平面和5．smm，加 Letter from Gao Jun, Yunnan Reader said that he hoped that this magazine introduced the fixture and processing experience of milling thin-walled parts. In machining, often encountered in thin-walled shell parts measured flatness of the plate is 0.1 ~ 0.2mm, seriously affecting the quality of the end face milling, as shown in Figure 1,2. The wall thickness of two pieces is 6mm. To this end, I plant designed a special milling fixture to ensure that the plane and 5. smm, plus