Welding Process of Aluminum Alloy Roof Beam for Subway

A roof edge beam and welding process technology, applied in the field of aluminum alloy welding, can solve the problems affecting the qualified rate of products, complicated procedures, and high comprehensive cost, and achieve the effects of optimizing welding process parameters, reducing product repair rate, and optimizing welding sequence.

Active Publication Date: 2018-09-18
辽宁忠旺铝合金精深加工有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The welding process of aluminum alloy roof side beams for subway has high requirements on the team assembly and welding process of workpieces. A slight deviation may cause serious product deformation, affect subsequent assembly, poor weld quality, high repair rate, and affect the product. The pass rate problem makes it difficult for the size of the welded product to meet the customer's standard requirements
In addition, the conventional aluminum alloy subway roof side beam welding process still has problems such as complicated procedures and high overall cost.

Method used

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  • Welding Process of Aluminum Alloy Roof Beam for Subway
  • Welding Process of Aluminum Alloy Roof Beam for Subway

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Embodiment Construction

[0027] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.

[0028] Such as figure 1 As shown, the aluminum alloy roof side beam for the subway in this embodiment is welded by the side beam profiles A and B.

[0029] In this embodiment, the roof side beam is welded in two stages, first by manual spot welding, and then by robot automatic welding, as follows:

[0030] 1), manual spot welding

[0031] 1.1) Formal assembly and assembly: the hollow side beam profiles A and B are installed in the corresponding positions of the special tooling (not shown) and then pressed and fixed;

[0032] 1.2) Front spot fixing: manually spot weld the convex weld 1 of the roof side beam that has been assembled, the welding current is 210A, the weld...

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Abstract

The invention discloses a welding process of an aluminum alloy vehicle roof edge beam for a metro and belongs to the technical field of aluminum alloy welding. The vehicle roof edge beam is formed by welding two edge beam profiles. Welding is conducted in two phases. Firstly, manual tack welding is conducted; and then, automatic welding is conducted through a robot, wherein the manual tack welding process comprises the steps of front assembling and pairing, front side tack welding and reverse side tack welding; and the process of automatic welding conducted through the robot comprises the steps of front assembling and welding, reverse assembling and fixation and reverse assembling and welding. According to the welding process of the aluminum alloy vehicle roof edge beam for the metro, the steps and process of a welding machine are improved; welding quality and dimensional requirements of an obtained product completely meet the use requirements; the product percentage of pass is remarkably increased; and meanwhile the labor-hour of the welding machine is reduced.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy welding, and in particular relates to a welding process for aluminum alloy roof side beams for subways. Background technique [0002] The welding process of aluminum alloy roof side beams for subway has high requirements on the team assembly and welding process of workpieces. A slight deviation may cause serious product deformation, affect subsequent assembly, poor weld quality, high repair rate, and affect the product. The pass rate problem makes it difficult for the size of the welded product to meet the customer's standard requirements. In addition, the conventional aluminum alloy subway roof side beam welding process still has problems such as complicated procedures and high overall cost. [0003] In order to improve the welding seam quality and overall size requirements of our company's aluminum alloy subway roof side beam products, improve the product qualification rate, reduce the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K28/02B23K31/02
CPCB23K28/02B23K31/02
Inventor 谷晗王芳赵佳龙
Owner 辽宁忠旺铝合金精深加工有限公司
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