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Spot Welding - Welding Equipment Structure
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Welding Equipment Structure |
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A spot welder consists of the welding gun, transformer to increase welding current, and the controller to control “welding current”, “welding pressure”, and “welding time”. |
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The welding tips provide pressure to the welding area, apply current, and allow the weld area to cool while being held tightly. To resist deformation and conduct heat efficiently, the tips are made of copper alloy (chromium copper). | |
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The arms feed current to the tips to suit various requirements. They are available in many different shapes and lengths. | |
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Compressed air is usually used to move the tips up and down to hold work pieces tightly. | | |
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Converts the input (primary) voltage to the low voltage and high current, required for spot welding.
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Controls the three major conditions of the spot welding process: |
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