A method for controlling the processing deformation of the opening case

Abstract

The invention belongs to the field of machining, and particularly relates to a control method of machining deformation of a split casing. According to the following technical scheme, the control method of machining deformation of the split casing comprises the following steps that (1) a part is subjected to rough machining and then subjected to stable heat treatment; (2) the rough milling machining process is conducted, specifically, when the two sides of the horizontal mounting edge of the part are subjected to back chipping, the two sides are both subjected to down milling machining; (3) after a line is marked according to the end face of the part, linear cutting is conducted, and thus the part is cut into two half parts; (4) the junction surface finish-milling process is conducted, anda clamp is used for clamping; and (5) the finish turning process is conducted, the large end of the part is clamped upwards through the clamp, the two sides of the root part of the horizontal mountingedge are compressed, the outer wall of the part is subjected to auxiliary support, the two sides of the horizontal mounting edge at 0-180 degrees are arranged to be jacked, horizontal mounting edge warp caused by machining force is prevented, and by-allowance machining is conducted. According to the control method of machining deformation of the split casing, the problem of machining deformationof the split casing can be solved so as to improve the machining quality of the split casing.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a method for controlling the processing deformation of an opening case. Background technique [0002] The high-pressure compressor extended double-opening case is an important load-bearing part of the engine. Its part structure is a typical split part, divided into upper and lower halves. The material is high-temperature alloy, brand: GH706, and the design accuracy is high. The inner surface of the open case is formed by turning, and the outer surface is formed by milling; after finishing machining, the deformation is large, which seriously affects the wall thickness of the part, because there is no reinforced support on the inner wall of the part, and the wall thickness of the casing is relatively thin , The rigidity of the parts is poor, and deformation is easily generated during processing, which increases the difficulty of processing the casing. [0003] Acco...

AI Technical Summary

Problems solved by technology

[0009] The invention provides a method for controlling the processing deformation of the opening case, which solves the problem of the processing deformation of the opening case, so as to improve the processing quality of the opening case