Abstract
Spot welding machine requires a lot of power, occupies large area and it is heavy to transport, restricted by height and does not weld all angle. On present work, we have tried to overcome the above problems by restructuring the design. Newly designed apparatus was simpler, lighter, portable, compact and flexible machine which will be able to weld at any angle and can be easily operated by even a non-skilled Labor with much ease and required accuracy. The first thing is the fabrication of the portable spot-welding machine which is divided into two phases, first is the formation of basic circuit of machine which includes small transformer of 1.2 kVA with output voltage 0 to 2.2 volt with 2.5-gauge wire & power switch and second is the formation of body and arm mechanism of the machine. For creating this machine, we used modelling software such as Autodesk Fusion 360 and created a prototype based on its design. In this project we made our own transformer according to requirements of specifications for welding as a general transformer used in electronic appliances was costly and as well a Bulky.
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