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Weld joint forming process for vehicle door connection structure

A connection structure, welding seam forming technology, applied in the direction of manufacturing tools, welding equipment, arc welding equipment, etc., can solve the problems of difficult to achieve high-quality connection, unstable welding quality, large stress and deformation, etc., to avoid the influence of human factors, The effect of improving welding quality and reducing post-welding deformation

Inactive Publication Date: 2017-03-29
赵金龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing argon arc welding seam is prone to produce pores, cracks and brittle defects. At the same time, large stress and deformation will be formed in the welding area, making it difficult to achieve high-quality connection, resulting in two major problems after welding: Severe deformation and unstable welding quality

Method used

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  • Weld joint forming process for vehicle door connection structure

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Effect test

Embodiment １

[0011] The invention provides a welding seam forming process for a car door connecting structure, which is characterized in that: the welding seam forming process of the car door connecting structure is controlled by a program as follows: 2mm The length is the arc starting section, the control focusing current is , and the welding current is from 0 rose to 10 , the section trajectory for welding is from the rightmost short distance point to the leftmost short distance point; continue from the leftmost short distance point on the right end of the zoom section to the midpoint of the transition section between the close section and the far section of the zoom section, and keep the welding current constant at this time. changes, the focus current drops; the high voltage is 60KV , the welding speed is 60mm / s 。

Embodiment 2

[0013] The invention provides a welding seam forming process for a car door connecting structure, which is characterized in that: the welding seam forming process of the car door connecting structure is controlled by a program as follows: 2mm The length is the arc starting section, the control focusing current is , and the welding current is from 0 rose to 10 , the section trajectory for welding is from the rightmost short distance point to the leftmost short distance point; continue from the leftmost short distance point on the right end of the zoom section to the midpoint of the transition section between the close section and the far section of the zoom section, and keep the welding current constant at this time. changes, the focus current drops; the high voltage is 60~90KV , the welding speed is 60mm / s 。

[0014] According to the claim 1 The welding seam forming process of the car door connecting structure is characterized in that: the voltage and cur...

Embodiment 3

[0016] The invention provides a welding seam forming process for a car door connecting structure, which is characterized in that: the welding seam forming process of the car door connecting structure is controlled by a program as follows: 2mm The length is the arc starting section, the control focusing current is , and the welding current is from 0 rose to 10 , the section trajectory for welding is from the rightmost short distance point to the leftmost short distance point; continue from the leftmost short distance point on the right end of the zoom section to the midpoint of the transition section between the close section and the far section of the zoom section, and keep the welding current constant at this time. changes, the focus current drops; the high voltage is 90KV , the welding speed is 60mm / s 。

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Abstract

A weld joint forming process for a vehicle door connection structure is characterized in that according to program control of the weld joint forming process for the vehicle door connection structure, with 2mm length being an arc starting segment, a focusing current is controlled, a welding current is raised to 10 from 0, and a cross section trajectory performing welding starts from a rightmost close-distance point to a leftmost close-distance point; operation continues from a leftmost close-distance point of the right end of a variable-focal-length cross section to a midpoint of a transition segment of a close-distance cross section and a far-distance cross section of the variable-focal-length cross section, at the moment, the welding current is kept unchanged, and the focusing current is lowered; and according to the weld joint forming process for the vehicle door connection structure, a voltage and a current basically change in proportion, and a preferred voltage is 80-90 KV. The weld joint forming process for the vehicle door connection structure has the beneficial effects that the weld joints are good in forming, high in quality and small in deformation after welding, the welding quality is improved, the welding deformation is reduced, the part delivery quality is improved, and influences of human factors are avoided.

Description

technical field [0001] The invention relates to the field of welding, and in particular provides a welding seam forming process for a car door connecting structure. Background technique [0002] The existing argon arc welding seam is prone to produce pores, cracks and brittle defects. At the same time, large stress and deformation will be formed in the welding area, making it difficult to achieve high-quality connection, resulting in two major problems after welding: Severe deformation and unstable welding quality. Contents of the invention [0003] The object of the present invention is to provide a welding seam forming process for a car door connecting structure. [0004] A welding seam forming process for a car door connecting structure, characterized in that: the welding seam forming process for a car door connecting structure is controlled by a program: 2mm The length is the arc starting section, the control focusing current is , and the welding current i...

Claims

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Application Information

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IPC IPC(8): B23K9/02B23K9/16B23K9/10
CPCB23K9/02B23K9/10B23K9/16
Inventor 赵金龙
Owner 赵金龙
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