In most applications multiple small projections are formed on one surface of the parts to be welded. Projection welding is an ideal method of fastening attachments e.g.

The most important variables of this assembly technique are the quality of the projections and the response of the cylinder as the projection collapses during the welding time. Reference: AWS C1.1- Recommended Practices for Resistance Welding RWMA - Resistance Welding Manual 4th Edition. 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. Projection welding is especially suitable for Diamond segment welding, fan covers, auto electrics; hollow metal doors, semiconductors, etc. projection design projection quality alignment low inertia projection welding schedule fast follow up ring projection

This article discusses the applications of PW generally categorized as either embossed-projection welding or solid-projection welding.

One of the main differences between conventional sheet-to-sheet resistance welding and projection welding is that projection welding is a dynamic process involving considerable movement of the upper electrode. Projection welding is a type of resistance welding that focuses current and force to a single point or line at the beginning of a weld. 14 or 15 can be made by forming projections in …

Short length T joints e.g. brackets, spigots and weld nuts to sheet metal where there is access from only one side and for making attachments to solid forged or machined parts. Projection welding has fewer variables that affect the resistance welding process as compared to spot welding. A source of projection weld schedules is AWS C1.1.

Projection welding (PW) is a variation of resistance welding in which current flow is concentrated at the point of contact with a local geometric extension of one (or both) of the parts being welded. In the future, we are going to make a full article about different types of welding procedure and construction for our readers.

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