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Stretch forming technical method for high-temperature alloy materials

A technology of stretch forming and process method, which is applied in the forming field of superalloy materials, can solve the problems of long forming cycle, unsuitable parts production, cracks, etc., and achieve the effect of improving production efficiency and quality

Inactive Publication Date: 2016-06-01
HARBIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing forming process methods for tail nozzles made of superalloy materials focus on drop hammer forming, relying on head-to-head contact between metals for forming. The biggest drawback of this forming process method is that the forming cycle is too long, which is not suitable for The production of large quantities of parts also has many problems in the surface quality of parts, such as wrinkles, scratches and cracks on the surface of parts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The specific description of the present invention is as follows:

[0013] Step 1: Cut the wool according to the shape of the part;

[0014] Step 2: Stretch the shape of the part on the skin stretching machine. The two ends of the sheet are clamped by the clamps of the stretching machine, and the stretch tire lifted by the worktable is in contact with the sheet to produce uneven plane tensile strain so that the sheet and the stretch tire are bonded together. The existing stretching process is mainly used on aluminum plate materials, and the stretching process is already a mature technology. When this method is applied to superalloy materials, it should be noted that if the shape of the part cannot meet the requirements of stretch forming, it can be segmented from the middle, and then the segmented stretched parts can be welded together. The key to stretching superalloys lies in the structural form of the stretched tire. It is necessary to find an optimal stretching dir...

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Abstract

The invention belongs to the technical field of formation of high-temperature alloy materials, and relates to a stretch forming technical method for the high-temperature alloy materials. Compared with the prior art, the method uses a skin stretch forming technology, the forming defects of cracking, sliding lines, coarse grain, 'orange peel' and wrinkling existing on the surface of a part in the original forming process are avoided, and the quality of products is improved. In addition, as the skin stretch forming technology used by the method does not need heat treatment, the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of high temperature alloy material forming, and relates to a stretch forming method of high temperature alloy material. Background technique [0002] Most of the existing forming process methods for tail nozzles made of superalloy materials focus on drop hammer forming, relying on head-to-head contact between metals for forming. The biggest drawback of this forming process method is that the forming cycle is too long, which is not suitable for The production of large quantities of parts also has many problems in the surface quality of the parts, such as wrinkles, scratches and cracks on the surface of the parts. Contents of the invention [0003] The technical problem to be solved in the present invention: [0004] The invention provides a stretch forming method of a superalloy material, which improves product quality and work efficiency. [0005] Technical scheme of the present invention: [0006] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/22
Inventor 于国涛张礼斌
Owner HARBIN
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