Z-shaped welding line stirring friction welding process method

A welding process and friction stir technology, applied in welding equipment, manufacturing tools, non-electric welding equipment, etc., can solve problems affecting the engineering application of friction stir welding technology, achieve good welding accessibility, ensure welding quality, and increase economic costs Effect

Active Publication Date: 2018-09-14
SHAANXI AIRCRAFT CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the above problems, the engineering application of friction stir welding technology in Z-shaped welds is affected.

Method used

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  • Z-shaped welding line stirring friction welding process method
  • Z-shaped welding line stirring friction welding process method
  • Z-shaped welding line stirring friction welding process method

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The present invention will be described in further detail below in conjunction with accompanying drawing, please refer to Figure 1 to Figure 9

[0041] Step 1. Increase welding process allowance

[0042] When the parts are being processed, add welding process margins 5, 6, 7 and 8 at both ends of the weld along the weld direction of the upper weld 1 and the lower weld 2 respectively, and change the Z-shaped weld into a "work" "Font weld. The thickness of the welding seam is the same as that of the welding seam where the welding process allowance is located. Its structural shape can be determined according to the specific conditions of the part. Its structural shape can be "one" shape, L shape, Z shape, T shape, I shape, etc. Or the extension of the end face of the part.

[0043] Step 2. Welding

[0044] The present invention provides two kinds of welding sequences, the starting and receiving points of welding seam are A point, B point, C point, D point, E point and...

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Abstract

The invention belongs to engineering applications of stirring friction welding to the field of aerospace manufacture, and relates to a Z-shaped welding line stirring friction welding process method. The technological process includes the steps of welding process allowance increase, welding, welding process allowance cutoff and the like. Stirring friction welding starting and stopping positions areplaced on welding process allowance, the shortcomings of welding starting and stopping of Z-shaped welding lines by a stirring friction welding technology are overcome, and part production requirements are met. The process method is simple, practical, easy to operate and good in welding accessibility, the economic cost of part machining is not increased, and parts are conveniently clamped by a fixture.

Description

technical field [0001] The invention belongs to the engineering application of friction stir welding in the field of aviation manufacturing, and relates to a friction stir welding process method of a Z-shaped weld seam. Background technique [0002] As a new welding technology, friction stir welding can replace fusion welding to solve the problem of difficult welding of aerospace metal materials such as aluminum alloy and magnesium alloy, and has excellent joint performance, and the welded joint has no cracks, no pores, no shrinkage and other defects; welding No spatter, no smoke, no radiation, green and environmental protection in the process; the residual stress and deformation of the parts after welding are small, so the friction stir welding technology has been widely used in the field of aviation manufacturing. However, friction stir welding technology also has limitations. First of all, the performance of the joint at the starting position of the weld is unstable and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12
CPCB23K20/1205
Inventor 张洪涛罗喜东赵清清黄智勇刘庆华王翀李从卿张国峰梁翠郭绍华王文全段正才王彦喜邵宇哲王舟姚勇李宝科杨建鹏黄卫胡凯旗岳卫华张雨浪徐俊辉
Owner SHAANXI AIRCRAFT CORPORATION
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