Abstract
Abstract: Resistance spot welding is required to connect the thin metal sheets by heat in automobile and aircraft industries. Shaped copper and zinc alloy (brass) electrodes apply pressure to hold the workpieces together and focus the welding current into a dense area. Spot welding machine occupies a wide area with lots of electricity and is very heavy to transport. In this work, we have tried to overcome the structured problems by replacing portable structures. The newly established tool is easier to use, lightweight, more portable, economical, compact, and versatile. It can weld at any angle and be easily operated by even unskilled laborers with the necessary proficiency and precision. The first step in making a portable spot-welding machine is to construct its basic circuit, which consists of a tiny transformer with an output voltage range of 0 to 12 volts, 35mmsq wire, and a power switch. The second step is to construct the structure of the machine and arm mechanism.
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