A laser self-fluxing welding process of aluminum alloy without protective gas

A welding process, aluminum alloy technology, applied in laser welding equipment, welding equipment, metal processing equipment, etc., to achieve the effect of beautiful weld seam, less welding defects, and reduce welding deformation

Active Publication Date: 2021-05-28
安徽忠旺铝合金精深加工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, in order to solve the above-mentioned problems existing in the welding process of aluminum alloy plates of different series and different thicknesses, the present invention provides an aluminum alloy laser self-fluxing welding process without protective gas, which can reduce Welding deformation during the welding of small aluminum alloy plates reduces the occurrence of welding defects; increases the depth-to-width ratio of the weld bead to ensure the consistency of welding quality for dissimilar profiles and reduces welding costs; realizes automation and improves production efficiency

Method used

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  • A laser self-fluxing welding process of aluminum alloy without protective gas
  • A laser self-fluxing welding process of aluminum alloy without protective gas
  • A laser self-fluxing welding process of aluminum alloy without protective gas

Examples

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Effect test

Embodiment 1

[0036] like figure 1 A laser self-fusion welding process of aluminum alloy without shielding gas shown, mainly includes the welding of profile parts and sheet metal parts and the welding of sheet metal parts and sheet metal parts, wherein the welding process of welding profile parts and sheet metal parts is:

[0037] A. Preparation before welding: Use a wire bowl brush to remove the oxide film on the surface of the profile and sheet metal within a range of 50mm near the weld of the profile and sheet metal to be welded, and then clean the surface of the profile and sheet metal with acetone or ethanol. Oil pollution, in which the profile parts are 2mm thick 6 series aluminum alloys, and the sheet metal parts are 1mm thick 5 series aluminum alloys;

[0038] B. Assembly pair: Use clamping tooling to press the profile parts and sheet metal parts on both sides of the weld to ensure that the weld gap between the profile part and the sheet metal part is 0.2mm. figure 2 For the lap j...

Embodiment 2

[0055] like figure 1 A laser self-fusion welding process of aluminum alloy without shielding gas shown, mainly includes the welding of profile parts and sheet metal parts and the welding of sheet metal parts and sheet metal parts, wherein the welding process of welding profile parts and sheet metal parts is:

[0056] A. Preparation before welding: Use a wire bowl brush to remove the oxide film on the surface of the profile and sheet metal within a range of 25mm near the weld of the profile and sheet metal to be welded, and then clean the surface of the profile and sheet metal with acetone or ethanol. Oil pollution, in which the profile parts are 2mm thick 6 series aluminum alloys, and the sheet metal parts are 1mm thick 5 series aluminum alloys;

[0057] B. Assembly pair: Use clamping tooling to press the profile parts and sheet metal parts on both sides of the weld to ensure that the weld gap between the profile part and the sheet metal part is 0.1mm. figure 2 For the lap j...

Embodiment 3

[0074] like figure 1 A laser self-fusion welding process of aluminum alloy without shielding gas shown, mainly includes the welding of profile parts and sheet metal parts and the welding of sheet metal parts and sheet metal parts, wherein the welding process of welding profile parts and sheet metal parts is:

[0075] A. Preparation before welding: Use a wire bowl brush to remove the oxide film on the surface of the profile and sheet metal within a range of 30mm near the weld of the profile and sheet metal to be welded, and then clean the surface of the profile and sheet metal with acetone or ethanol. Oil pollution, in which the profile parts are 2mm thick 6 series aluminum alloys, and the sheet metal parts are 1mm thick 5 series aluminum alloys;

[0076] B. Assembly pair: Use clamping tooling to press the profile parts and sheet metal parts on both sides of the weld to ensure that the weld gap between the profile part and the sheet metal part is 0.2mm. figure 2 For the lap j...

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Abstract

The invention belongs to the technical field of lightweight automobile welding, and relates to an aluminum alloy laser self-melting welding process without protective gas, including welding of profile parts and sheet metal parts, welding of sheet metal parts and sheet metal parts, and welding of profile parts and sheet metal parts. Welding and welding of sheet metal parts and sheet metal parts include pre-weld preparation, assembly pairing, welding and post-weld cleaning. This welding process does not need to add shielding gas or welding wire during the welding process. At the same time, through the welding process The setting can ensure the automatic switching of parameters in the whole welding process, realize automatic welding, reduce welding cost, and improve production efficiency; it can also reduce welding deformation and welding defects during aluminum alloy plate welding; increase weld bead The depth-to-width ratio ensures the consistency of welding quality of dissimilar profiles.

Description

technical field [0001] The invention belongs to the technical field of lightweight automobile welding, and relates to an aluminum alloy laser self-fusion welding process without shielding gas. Background technique [0002] Aluminum alloy has low density, but relatively high strength, close to or exceeding high-quality steel, good plasticity, can be processed into various profiles, and has excellent electrical conductivity, thermal conductivity and corrosion resistance. With the development of lightweight automobiles, aluminum alloy materials Light, so the proportion of aluminum alloys used in all walks of life is also increasing. [0003] At present, the aluminum alloys used in automobiles are mainly 5 series and 6 series, and the welding methods used are mainly manual MIG welding, TIG welding, etc. The welding process is that the welding personnel operate the welding torch, fill the wire, and add shielding gas. The method has the following problems when welding: 1. It is d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/244B23K26/14B23K26/348
CPCB23K26/14B23K26/244B23K26/348
Inventor 魏海峰丛永亮夏宏波陈劲松赵亚磊丁晓鹏胡月胜梁宁宁李峰吴洋
Owner 安徽忠旺铝合金精深加工有限公司
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