Projection Welding Process

It is named so because different projections are formed on the workpiece for effective welding. In this projection welding is more or less similar of spot welding process.

Projection Welding Process And Their Procedure Techminy

Projection welds developed via the resistance welding RW process use the design or shape of the part to make discreet individual-point contacts to concentrate the current during welding.

Projection welding process. A significant aspect of projection welding is the limited distortion associated with it which is certainly advantageous in terms of geometrical stability. FORCE APPLICATION AND FOLLOW-UP. Projection welding is a resistance welding process for joining metal components or sheets with embossments by directly applying opposing forces with electrodes specially designed to fit the shapes of the workpieces.

In this process produces coalescence of welding metals the heat generated from electric resistance to current through the work piece hold together with pressure applied to electrodes. The projection welding process is similar to spot welding except that the welding pressure and welding current. In most applications one of the workpiece surfaces features multiple small formed projectionsround dimples elongated ridges or rings or the extended.

This article focuses on the process fundamentals advantages and limitations of projection welding and reviews the equipment used in the process. PROJECTION SHAPE SIZE CONSISTENCY. Projection Welding PW is widely utilized for joining purpose especially in automobile industry and fabrication of sheet metal due to its robustness speed flexibility and low cost operation.

Projection welding process is a one type of resistance welding. Projection welding 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. 11 rows Welds thick workpieces quickly vertical position steel only continuous consumable.

Projection welding has fewer variables that affect the resistance welding process as compared to spot welding. Hence the welding heat are localized by making projection or embossments on one or both of the work pieces to be joined. 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.

Projection is a type of resistance welding. In most applications multiple small projections are formed on one surface of the parts to be welded. In projection welding normally several projections or even a full ring projection are being welded at the same time.

Such projections are made at all points where a weld spot is desired. In this welding process the design or shape of the part is used to make discreet individual contact to concentrate the current during the welding process. For this to occur successfully the tooling and machine have to be set up properly and operating efficiently.

Powered by a vision to blend power saving with aesthetics Artech has today germinated into a force to reckon with in the field of resistance 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. Projection welding is one of the most widely applied welding processes for sintered PM parts.

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. Spot and Projection Welding - Artech Welders Private Limited took roots in 1994 with the dream of manufacturing Capacitor Discharge CD projection welding machines. The projection welding process is a set of resistance welding processes wherein Unionization is produced by the heat received from resistance to electric current flow.

Mostly in almost all applications with various small projections are molded on single parts surfaces which need to weld. It is characterized by low cost high speed and dependability making it at present the most widely used resistance welding process. Projection welding is one kind of resistance weld where the shape or design of the part is used to make subtle point contacts to concentrate the current during welding.

In this process overlapping sheets are joined by local fusion at the interface by the concentration of current flowing between two electrodes. In any car there are 3000-6000 projection welds which show the level importance of the projection welding. 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.

Resistance Projection Welding