Machining method for controlling deformation of high-precision and high-temperature alloy thin-walled dual-wing mounting edge disk part

Abstract

The invention provides a machining method for controlling deformation of a high-precision and high-temperature alloy thin-walled dual-wing mounting edge disk part. The machining method comprises the process route of rough turning, fine turning, finish turning, marking, washing, intermediate inspection, stress relief heat treatment, fluorescent inspection, grinding, rim end face turning, shot blasting, and grinding and end face repairing after shot blasting. A special clamp for enhancing rigidity and preventing deformation is adopted for broaching a mortise, and the deformation problem caused during workpiece machining is solved. The mortise broaching of the disk part adopts the mode of supporting on the face of broaching the mortise and compressing on the upper portion. The main machiningsteps of specific test workpieces comprise semi-finish turning adopting the axial positioning and compressing mode, machining through a special tool to reduce the clamping deformation, and optimizingmachining through a lace numerical control program. The machining method has the advantages that the yield is improved to 80% or above from 40%, the deformation of the disk part is controlled to a certain degree, the technical bottleneck of deformation of the high-temperature alloy dual-wing mounting edge disk part is broken through, the manufacturing technical level is improved, and profound significance is achieved.

Description

technical field [0001] The invention relates to the field of high-temperature alloy mechanical processing, in particular to a processing method for controlling deformation of a high-precision high-temperature alloy thin-walled double-wing mounted side plate. Background technique [0002] In mechanical processing technology, especially in the processing and manufacturing of high-precision high-temperature alloy double-wing mounting edge thin-walled disc workpieces, deformation has always been a major technical difficulty, which seriously affects the pass rate of workpieces. This kind of high-precision workpiece has never been processed before, and it is the first contact, and there is no similar processing technology for reference. The high temperature alloy plate workpiece is a key part, with a thin wall, the minimum wall thickness is 2.3mm, with a tongue and groove structure, high dimensional accuracy requirements, strict technical conditions, and the workpiece is easily de...

AI Technical Summary

Problems solved by technology

The material of the workpiece is a high-temperature alloy, which is a difficult-to-machine material. According to the previous processing method, there is always a large deformation of the disc workpiece, the out-of-tolerance rate is as high as 60%, and the pass rate is 40%, which has seriously affected the qualified delivery of the workpiece. Controlling the deformation of disc workpieces has become a technical bottleneck that needs to be solved urgently. It is urgent to develop a method for controlling the deformation of thin-walled discs with high-precision superalloy double-wing mounting edges.

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