The method of improving the quality of al-cu spot welding
An al-cu and spot welding technology, applied in the direction of welding medium, welding/cutting medium/material, welding equipment, etc., can solve problems such as inability to obtain results
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[0016] One, the present invention will be further described below in conjunction with embodiment.
[0017] A method for improving Al-Cu spot welding quality, characterized in that it proceeds in the following steps:
[0018] Step 1, weighing Mn powder and Zn powder according to the mass ratio of 6~10:1~3;
[0019] Step 2, mixing the Mn powder and the Zn powder evenly in proportion, adding a volatile solvent to prepare an alloy powder, and the volatile solvent is acetone;
[0020] Step 3. Stir the alloy powder. When the viscosity is 0.5 to 0.55 Pa·s, scrape the alloy powder on the lap joint between the Al material and the Cu material to be welded. Alloy powder group layer is formed between the joints, the thickness of the alloy powder group layer on the surface of the Al material is 2 times the thickness of the alloy powder group layer on the surface of the Cu material, and the thickness of the alloy powder group layer on the surface of the Al material is the same as that of t...
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