A simple welding machine Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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A simple welding machine Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / welding equipment

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For the manufacture of many parts, a welding machine with constant pressure on the contacts is required to guarantee a good welding quality. It's easy to make it at home.

simple welding machine

A step-down transformer with a power of 100 W is assembled from three cores from domestic autotransformers. Primary winding - in two PEV-2 wires with a diameter of 0,8 mm, the number of turns is 440. Secondary - four turns of a copper bus with a cross section of 13x2,5x5 mm. Welding tongs are equipped with a movable weight, machined from steel, which regulates the force on the contacts and thus the welding mode.

The current is supplied when the button is closed in the primary circuit of the transformer. The bracket for fastening the lever is bent from sheet steel St20, 2-3 mm thick. The fixed lever is screwed with its bracket to the base board. The bracket is welded to the fixed arm by gas welding. A wooden handle is mounted on the movable lever to protect against electric shock.

Authors: V. Noskov, E. Sukhov, engineers, Kiev

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