A device for thermal correction of thin-walled titanium alloy parts

Abstract

The invention relates to a device for heat shaping of thin-walled titanium alloy parts. A first pressing mechanism is fixed at one end of a body, and a second pressing mechanism is fixed at the other end of the body. Two clamping mechanisms are mounted in the middle of the body. Two clamping plates of a lateral ejection mechanism are fixed on two lateral surfaces of the body respectively and located between the first pressing mechanism and the clamping mechanisms. A width inner-supporting mechanism is located between the two clamping plates of the lateral ejection mechanism, one end of the width inner-supporting mechanism is mounted in a to-be-shaped part, and cavity inner-supporting mechanisms are mounted on the upper surface and the lower surface of the width inner-supporting mechanism. One ends of the cavity inner-supporting mechanisms are mounted in the clamping mechanisms, so that a support body with a wedge-shaped inner cavity is formed in the to-be-shaped part. By the device, utilization rate of a heat treatment furnace is increased, and cost of vacuum heat shaping is lowered. Since the to-be-shaped parts are clamped symmetrically, main stresses of a tooling are symmetric in direction and offset each other, stress state of the tooling is improved, and deformation resistance of the tooling is enhanced indirectly.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular, the device is used to correct and fix the shape of deformed thin-walled titanium alloy parts in a hot state. Background technique [0002] Thin-walled titanium alloy parts are an important part of an engine, providing the required air flow for the engine. At present, the thin-walled titanium alloy parts developed at home and abroad are generally divided into casting molding, sheet metal welding molding, and combination of casting and sheet metal welding molding. The part is a complex thin-walled structure with a length of >1000mm, a cross-sectional size of about 120mm×100mm, and a wall thickness of ≤2mm. There are many profiles in the structure that require high profile, surface roughness, shape and position tolerances, and dimensional tolerances. , Cavity, positioning and installation reference surface, etc. The material of this part is titanium alloy which is difficult t...

AI Technical Summary

Problems solved by technology

The deformation of the thin-walled titanium alloy parts will greatly reduce its performance, especially the deformation of the inlet part of the part, the airflow compression profile and the overall straightness will seriously affect its aerodynamic performance. When the deformation is serious, it will directly lead to the failure of the part and the scrapping of the engine

All existing shape-calibrating technologies have the problems of unreasonable design and manufacture of shape-shaping devices, incomplete shape-shaping effects, and the problem that the profile of parts after shape-shaping still cannot meet the design index requirements. The purpose of the present invention is to solve the above-mentioned thin-walled titanium alloys. For the technical shortcomings in the elimination of part deformation, a correction and setting device is provided, which can realize the correction function of the deformation of key parts of thin-walled titanium alloy parts, so that the deformation of each key part of the part meets the design and use requirements

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