Wire-filled electron beam welding method for titanium metal material and aluminum alloy material

A technology of electron beam welding and aluminum alloy materials, which is applied in the field of wire-filled electron beam welding of titanium metal materials and aluminum alloy materials, can solve the problems of large differences in physical properties, poor mechanical properties of welds, and metallurgical incompatibility, etc. Achieve the effects of improving mechanical properties, improving forming, and avoiding welding defects

Inactive Publication Date: 2018-09-07
HARBIN INST OF TECH AT WEIHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the mechanical properties of the weld seam are poor due to metallurgical incompatibility and large differences in physical properties when welding dissimilar metals between titanium alloys and aluminum alloys in the existing welding process , providing a wire-filling electron beam welding method for titanium metal materials and aluminum alloy materials using an electron beam wire-filling welding process

Method used

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  • Wire-filled electron beam welding method for titanium metal material and aluminum alloy material
  • Wire-filled electron beam welding method for titanium metal material and aluminum alloy material
  • Wire-filled electron beam welding method for titanium metal material and aluminum alloy material

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Embodiment 1

[0023] Embodiment 1: Select TA15 titanium alloy test plate base material and aluminum alloy test plate base material to carry out electron beam welding, welding steps are:

[0024] 1. Choose vacuum device first, the vacuum device used in the present invention comprises vacuum chamber 1, is provided with fixture 2, fixture mobile support 3, servo motor, electron beam welding torch 4, welding torch mobile support 5, nozzle support in described vacuum chamber 1 6. The wire feeding nozzle 7 and the wire feeding mechanism 8, the fixture moving bracket 3 and the welding torch moving bracket 5 are arranged in parallel, the upper end of the fixture moving bracket 3 is fixedly connected with the fixture 2, and the lower end of the fixture moving bracket 3 passes through a horizontal slide rail Slidingly connected with the vacuum chamber 1 and driven by a horizontal servo motor, the fixture is provided with a fixture buckle 9, the upper end of the welding torch moving bracket 5 is fixedl...

Embodiment 2

[0028] 1. Choose vacuum device first, the vacuum device used in the present invention comprises vacuum chamber 1, is provided with fixture 2, fixture mobile support 3, servo motor, electron beam welding torch 4, welding torch mobile support 5, nozzle support in described vacuum chamber 1 6. The wire feeding nozzle 7 and the wire feeding mechanism 8, the fixture moving bracket 3 and the welding torch moving bracket 5 are arranged in parallel, the upper end of the fixture moving bracket 3 is fixedly connected with the fixture 2, and the lower end of the fixture moving bracket 3 passes through a horizontal slide rail Slidingly connected with the vacuum chamber 1 and driven by a horizontal servo motor, the fixture is provided with a fixture buckle 9, the upper end of the welding torch moving bracket 5 is fixedly connected with the electron beam welding torch 4, and the lower end slides with the vacuum chamber 1 through a longitudinal slide rail connected, and driven by a longitudin...

Embodiment 3

[0032] 1. Choose vacuum device first, the vacuum device used in the present invention comprises vacuum chamber 1, is provided with fixture 2, fixture mobile support 3, servo motor, electron beam welding torch 4, welding torch mobile support 5, nozzle support in described vacuum chamber 1 6. The wire feeding nozzle 7 and the wire feeding mechanism 8, the fixture moving bracket 3 and the welding torch moving bracket 5 are arranged in parallel, the upper end of the fixture moving bracket 3 is fixedly connected with the fixture 2, and the lower end of the fixture moving bracket 3 passes through a horizontal slide rail Slidingly connected with the vacuum chamber 1 and driven by a horizontal servo motor, the fixture is provided with a fixture buckle 9, the upper end of the welding torch moving bracket 5 is fixedly connected with the electron beam welding torch 4, and the lower end slides with the vacuum chamber 1 through a longitudinal slide rail connected, and driven by a longitudin...

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Abstract

The invention discloses a wire filling electron beam welding method of a titanium material and an aluminum alloy material. The wire filling electron beam welding method of the titanium material and the aluminum alloy material is characterized in that when welding is conducted, the butt joint face of titanium alloy and aluminum alloy is filled with an aluminum alloy welding wire, the aluminum alloy welding wire welds the titanium alloy and the aluminum alloy together through an electron beam welding method, by introducing a wire filling welding technology in the dissimilar metal electron beam welding process of the titanium alloy and the aluminum alloy, forming of a welding seam is obviously improved, the mechanical property of the welding seam is improved, the welding defect is avoided, and connection of dissimilar metal can be completed efficiently and stably; due to the fact that electron beam wire filling welding of the titanium alloy and the aluminum alloy is conducted in vacuum, and the aluminum alloy welding wire has the metallurgical improvement effect on a welding seam molten pool, oxide inclusions can not be generated for the welding seam, producing of an intermetallic compound can be obviously inhibited simultaneously, and the substantial technical problem that in the prior art, the dissimilar metal of the titanium alloy and the aluminum alloy can not conduct reliable connection through electron beam welding is solved.

Description

technical field [0001] The invention relates to the technical field of metal connection, in particular to a wire-filled electron beam welding method for titanium metal materials and aluminum alloy materials. Background technique [0002] Titanium alloys and aluminum alloys have the advantages of high specific strength and good corrosion resistance, and can be widely used in the aerospace industry. The composite structure of aluminum alloy and titanium alloy can meet the needs of performance, save cost and reduce the weight of the structure, and the application of anti-rust aluminum alloy in some parts can also extend the service life to a certain extent. However, there are great differences between titanium alloy and aluminum alloy in terms of physical and chemical properties, and when the two metals are welded, melted, mixed and solidified, brittle intermetallic compounds are easily formed, which will lead to cracks during the welding process. The conventional welding meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K15/06B23K35/28B23K103/18
CPCB23K15/0033B23K15/0053B23K15/06B23K35/286B23K2103/18
Inventor 王廷李洪剑张秉刚冯吉才蒋思远
Owner HARBIN INST OF TECH AT WEIHAI
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