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Butt welding process for aluminum skin of large square cabin

A skin and craft technology, which is applied in the field of tailor-welded aluminum skin of large-scale shelters, can solve the problems of easy deformation and cracking, low strength, poor waterproof effect of the cabin, etc., to ensure flatness and strength, and improve waterproof sealing. performance, the effect of improving connection stability

Inactive Publication Date: 2016-03-02
贵州航天特种车有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a large-scale shelter aluminum skin tailor welding process to solve the problems existing in the existing skin splicing process such as low strength, easy deformation and cracking, poor waterproof effect of the cabin body, easy peeling off of the surface paint coating and rivets. Looseness and other issues

Method used

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  • Butt welding process for aluminum skin of large square cabin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] like figure 1 As shown, when the aluminum skin A2 and the aluminum skin B4 need to be welded on the skeleton 1, the skeleton assembly and shape correction should be carried out first: assemble the skeleton 1 in place, adjust the position, size and shape of the skeleton 1; then clean the skeleton 1 with a cleaning solution Surface, aluminum skin A2 and aluminum skin B4, remove dust and oil stains, the cleaning solution is acetone; place aluminum skin A2 and aluminum skin B4 close together on the frame 1 to ensure that the distance between aluminum skin A2 and aluminum skin B4 is Leave a 2.5mm wide weld in between; Drill a number of rivet holes 3 arranged at intervals at the junction of the aluminum skin A2 and aluminum skin B4 and the skeleton, and the distance between the rivet holes 3 drilled in the horizontal direction at the top of the skeleton 1 The distance between the rivet holes 3 on both sides of the weld 5 in the vertical direction is 80mm, and the distance bet...

Embodiment 2

[0025] like figure 1 As shown, when the aluminum skin A2 and the aluminum skin B4 need to be welded on the skeleton 1, the skeleton assembly and shape correction should be carried out first: assemble the skeleton 1 in place, adjust the position, size and shape of the skeleton 1; then clean the skeleton 1 with a cleaning solution Surface, aluminum skin A2 and aluminum skin B4, remove dust and oil stains, the cleaning solution is acetone; place aluminum skin A2 and aluminum skin B4 close together on the frame 1 to ensure that the distance between aluminum skin A2 and aluminum skin B4 is A 2mm wide weld seam is reserved between them; a number of rivet holes 3 arranged at intervals are drilled at the junction of the aluminum skin A2 and aluminum skin B4 and the skeleton, and the distance between the rivet holes 3 drilled in the horizontal direction at the top of the skeleton 1 is 180mm, the distance between the rivet holes 3 on both sides of the weld 5 in the vertical direction is...

Embodiment 3

[0027] like figure 1 As shown, when the aluminum skin A2 and the aluminum skin B4 need to be welded on the skeleton 1, the skeleton assembly and shape correction should be carried out first: assemble the skeleton 1 in place, adjust the position, size and shape of the skeleton 1; then clean the skeleton 1 with a cleaning solution Surface, aluminum skin A2 and aluminum skin B4, remove dust and oil stains, the cleaning solution is acetone; place aluminum skin A2 and aluminum skin B4 close together on the frame 1 to ensure that the distance between aluminum skin A2 and aluminum skin B4 is Leave a 2.2mm wide weld in between; Drill a number of rivet holes 3 arranged at intervals at the junction of the aluminum skin A2 and aluminum skin B4 and the skeleton, and the distance between the rivet holes 3 drilled in the horizontal direction on the top of the skeleton 1 The distance between the rivet holes 3 on both sides of the weld 5 in the vertical direction is 87mm, and the distance bet...

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Abstract

The invention discloses a butt welding process for aluminum skin of a large square cabin. The process comprises the steps of assembling and sizing a framework, carrying out pre-welding treatment, carrying out butt junction location, drilling rivet holes, cleaning, riveting, carrying out butt welding and the like. The butt welding process adopts argon arc welding to weld a welding seam between two pieces of aluminum skin, thereby realizing butt welding for two pieces of aluminum skin, guaranteeing flatness and strength of the welding seam subjected to butt welding, and avoiding a deforming and cracking condition; moreover, the aluminum skin is riveted by rivets, so that connecting stability of the aluminum skin to the framework can be effectively improved, thereby improving waterproof sealing performance of the cabin body of the square cabin, and preventing a paint coating at a joint from dropping.

Description

technical field [0001] The invention relates to the technical field of tailor welding of aluminum plates, in particular to a process of tailor welding of aluminum skins for large shelters. Background technique [0002] At present, large-scale shelters need to be covered with a layer of aluminum skin on the outer wall of the cabin. Since the aluminum skin is a straight structure, there are a large number of straight and straight splicing during splicing. The characteristics of this type of parts are: the spliced ​​sheets are all large sheets, the seams are longer, the outer covering is thinner, and it has higher hardness and strength requirements. [0003] The shelter is generally covered with a skin on the welded skeleton, and the aluminum skin is riveted and fixed on the skeleton through aluminum rivets; Large-scale shelters (over 6000mm in length) need to splice the skins, and the gaps at the joints are usually filled with putty, scraped and polished. However, after the ...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 廖良张忠荣吕华华钰涛
Owner 贵州航天特种车有限责任公司