How Projection Welding Works

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How Projection Welding Works. Projection welding uses projections or intersections that focus heat generation at a specific point. Short length T joints eg.

Projection Welding Working Advantage Disadvantages And Applications
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Projection welding is a resistance welding process of joining two sheets or a sheet and a thick component or a small component like nut to a big body like automotive chasis by making raised portions or projections on one of the components where weld nugget is required to be made. Mostly in almost all applications with various small projections are molded on single parts surfaces which need to weld. Projection welding is a resistance weld where the design or shape of the part is used to make discreet individual point contacts to concentrate the current during the welding process.

A little quantity of pressure can.

Based on the proposed WPS Test coupon or coupons is prepared and the coupon is welded as per the values or range provided in the pWPS. In projection welding normally several projections or even a full ring projection are being welded at the same time. Projection welding has fewer variables that affect the resistance welding process as compared to spot welding. Projection welding is a resistance weld where the design or shape of the part is used to make discreet individual point contacts to concentrate the current during the welding process.