The projection welding machine generally welds multiple points together, that is, the one-time welding is performed by the bumps on the board, and the spot welding is one point at a time, the welding head is sharp, and the projection welding head is generally flat and relatively large.
The electrode force of the projection welding should be sufficient to completely crush the projection welding point when it reaches the welding temperature, and bring the two workpieces into close contact. Therefore, the magnitude of the electrode force must be determined according to the properties of the metal to be welded, the size of the bumps, and the number of welding points at one time.
The force of the electrode affects the heat analysis and heat dissipation. When the other parameters are unchanged, the electrode force will prematurely crush the solder joint and lose the inherent role of the bump. At the same time, the strength of the joint will be reduced due to the reduction of the current density; excessive pressure will cause severe splashing.
In addition, the speed of the electrode pressure should also be appropriate, and it needs to be stable without impact.
Suzhou Anjia Automation Equipment Co., Ltd. is a professional welding equipment manufacturer, focusing on the development and sales of energy-efficient resistance welding machines, automatic welding equipment and industrial non-standard special welding equipment. Anjia focuses on how to improve welding quality, welding efficiency and reduce welding. cost. If you are interested in our butt welding machine, please contact us: 400-8333-566 .
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