Welding method for friction stud welding

A technology of friction stud welding and welding method, which is applied in the direction of welding equipment, non-electric welding equipment, metal processing equipment, etc., to achieve the effects of improving the welding strength of joints, simple and practical welding methods, optimizing welding efficiency and joint quality

Inactive Publication Date: 2015-12-02
昆山斯格威电子科技有限公司
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Problems solved by technology

However, the process still needs to be further improved to

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[0014] The present invention will be specifically introduced below in conjunction with specific embodiments.

[0015] The welding method of friction stud welding of the present invention is specifically as follows:

[0016] S1. Use the pressing device to compress the workpiece and place it in the welding box to improve the safety of welding operation;

[0017] S2. Pass the shielding gas into the welding box, press the high-speed rotating vertical stud on the surface of the workpiece, the rotation speed of the stud is not less than 800 rpm, and the shielding gas is argon, helium or nitrogen. This step It is very important to greatly improve the welding quality and joint strength;

[0018] S3. Press the stud into the surface of the workpiece to be joined and simultaneously travel to the inside of the workpiece, the traveling speed does not exceed 30 mm / min, and the pressing depth ranges from 0.1 to 1 mm, and frictional heat is generated to make the stud join the workpiece.

[0019] As a ...

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Abstract

The invention discloses a welding method for friction stud welding. The welding method for friction stud welding comprises the following steps: S1, pressing workpieces by using a pressing device and putting the workpieces in a welding box; S2, introducing protective gas into the welding box and pressing studs rotating at high speed on the surfaces of the workpieces; and S3, pressing the studs into the surfaces of the workpieces to be integrated and moving to the interiors of the workpieces at the same time, in whichwherein the range of the pressing depth is 0.1-1mm; the generated friction heat is used for enabling the studs to be integrated with the workpieces. The welding method for friction stud welding has the advantages that the welding method is relatively simple and practical, the joint welding strength can be effectively improved, the welding efficiency and the joint quality can be optimized, and the possible defects of faulty welding, cracks and air holes in the conventional stud welding can be avoided.

Description

technical field [0001] The invention relates to a welding method of friction stud welding, which belongs to the technical field of welding. Background technique [0002] Friction stud welding can weld the stud to the workpiece to realize the special structural connection between the stud and the workpiece. The welding principle is solid-phase connection, which does not require a large current power supply, energy saving and environmental protection. Because of its obvious advantages, this technology is widely used in the industry. has been quite widely used. However, this process still needs to be further improved to improve defects such as virtual welding, cracks, and pores. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide a friction stir stud welding method with simple process, higher joint strength, high welding efficiency and good quality. [0004] In order to achieve the above ...

Claims

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Application Information

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IPC IPC(8): B23K20/12B23K20/14
CPCB23K20/1295B23K20/14
Inventor 杨洪刚赵欣朱琼雁蔡智亮沈金华李彦国康荣峰赵刚黄凡
Owner 昆山斯格威电子科技有限公司
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