Method for eliminating trimming face step difference of single-face frame type part

The invention provides a method for eliminating the trimming face step difference of a single-face frame type part. Rough machining is carried out on a frame face of the part. In the rough machining process, machining allowance of 3-5 mm is reserved for the part. Gypsum water is modulated with gypsum powder according to a certain proportion on site. Part frame boxes are filled with the gypsum water. The surface of the part is trimmed flatly after gypsum is solidified. The part filled with the gypsum is turned over, and the periphery is ejected. The smooth face of the part is trimmed. Follow-upmachining is carried out after the gypsum in a frame is removed. According to the method, the part trimming face step difference generated after the aluminum alloy single-face frame type part is roughly machined can be effectively eliminated, and the part surface quality is improved obviously. 本发明提供了一种单面框类零件修面阶差消除方法，在对零件框面进行粗加工，粗加工时零件留3mm-5mm的加工余量，用石膏粉按一定比例现场调制石膏水，用石膏水罐满零件框格，等石膏凝固后将其表面修平。将填满石膏的零件翻面，四周顶紧。对零件光面进行修面。去除框内石膏后