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Technology of welding air cylinder cover aluminum sheet for automobile

A welding process and a technology for a cylinder cover, which are applied in the field of welding process of aluminum plates for automobile cylinder covers, can solve the problems of low quality of welding workpieces and accidents, and achieve the effects of ensuring welding quality, simplifying welding steps and simple welding methods.

Inactive Publication Date: 2018-11-23
安徽省佳隆汽车配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the diversity of welding methods and welding materials, there are various irregularities in the welding process, which leads to low quality of welded workpieces and sometimes accidents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A welding process for an aluminum plate of a cylinder cover for an automobile, comprising the following steps:

[0017] a. Use acetone and a rotary file on the aluminum plate to be welded to remove oil stains, aluminum chips, and oxide films on the end face and edge of the aluminum alloy plate within 20mm of the welded part, exposing the metallic luster;

[0018] b. Paste a protective film on the plate, there must be no air bubbles in the protective film, and no protective film should be pasted 3cm inward from the weld;

[0019] c. Check whether the surface of the workpiece is wet. If the surface of the workpiece is wet, wait for it to dry before welding;

[0020] d. According to the size of the welded structural parts, the length of spot welding is selected as 3cm;

[0021] e. Butt I-shaped groove, choose welding wire with a diameter of 1.2mm, welding current of 130A, welding voltage of 19V, and weld at a gas flow rate of 10L per minute and a welding speed of 350mm pe...

Embodiment 2

[0024] A welding process for an aluminum plate of a cylinder cover for an automobile, comprising the following steps:

[0025] a. Use acetone and a rotary file on the aluminum plate to be welded to remove oil stains, aluminum chips, and oxide films on the end face and edge of the aluminum alloy plate within 20mm of the welded part, exposing the metallic luster;

[0026] b. Paste a protective film on the plate, there must be no air bubbles in the protective film, and no protective film should be pasted 4cm inward from the weld;

[0027] c. Check whether the surface of the workpiece is wet. If the surface of the workpiece is wet, wait for it to dry before welding;

[0028] d. According to the size of the welded structural parts, the length of spot welding is selected as 5cm;

[0029] e. Butt I-shaped groove, choose welding wire with a diameter of 1.2mm, welding current of 140A, welding voltage of 20V, and weld at a gas flow rate of 15L per minute and a welding speed of 400mm pe...

Embodiment 3

[0032] A welding process for an aluminum plate of a cylinder cover for an automobile, comprising the following steps:

[0033] a. Use acetone and a rotary file on the aluminum plate to be welded to remove oil stains, aluminum chips, and oxide films on the end face and edge of the aluminum alloy plate within 20mm of the welded part, exposing the metallic luster;

[0034] b. Paste a protective film on the plate, there must be no air bubbles in the protective film, and no protective film should be pasted 5cm inward from the weld;

[0035] c. Check whether the surface of the workpiece is wet. If the surface of the workpiece is wet, wait for it to dry before welding;

[0036] d. According to the size of the welded structural parts, the length of spot welding is selected as 6cm;

[0037] e. Butt I-shaped groove, choose welding wire with a diameter of 1.2mm, welding current of 150A, welding voltage of 22V, and weld at a gas flow rate of 18L per minute and a welding speed of 500mm pe...

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PUM

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Abstract

The invention discloses a technology of welding an air cylinder cover aluminum sheet for an automobile. The technology comprises the following steps of: step a. removing oil stains, aluminum scraps and oxidation films on parts to be welded of the end face and edge of an aluminum alloy sheet to be welded in the range of 20mm by using acetone and a rotary file so as to show metallic luster; step b.sticking a protective film on the sheet, wherein no bubbles are allowed in the protective film, and no protective film is stuck in the range of 3-5 mm from a welding part to the interior; step c. checking whether the surface of a workpiece is wet, and if the surface of the workpiece is wet, welding after drying; step d. selecting 3-6cm as the length of spot welding according to the size of a welding structural component; step e. carrying out abutting joint of an I-shaped groove, and welding by selecting welding wires with the diameter of 1.2mm, the welding current of 130-150A and the welding voltage of 19-22V at the gas flow rate of 10-18L per minute and the welding speed of 350-500mm per minute; and step f. polishing unaesthetic welded joints, and clearing splashes. According to the technology, welding steps are simplified, a welding mode is simple, the material selection is accurate and standardized, and the welding quality of steel pipes can be ensured.

Description

technical field [0001] The invention relates to the technical field of aluminum plate welding, in particular to an aluminum plate welding process for an automobile cylinder cover. Background technique [0002] Different welding methods have different welding processes. The welding process is mainly determined according to the material, grade, chemical composition of the workpiece to be welded, the structure type of the weldment, and the welding performance requirements. First of all, it is necessary to determine the welding method, such as manual arc welding, submerged arc welding, argon tungsten arc welding, gas metal arc welding, etc. There are many types of welding methods, which can only be selected according to specific conditions. After the welding method is determined, the welding process parameters are formulated. The types of welding process parameters are different. For example, manual arc welding mainly includes: electrode type (or grade), diameter, current, volt...

Claims

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Application Information

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IPC IPC(8): B23P15/00
Inventor 苏适
Owner 安徽省佳隆汽车配件有限公司
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