Spot seam projection welding

Spot seam projection welding This involves the same technological processes as relief welding. However, with the seam joining method, several dozen relief protrusions are stamped onto the workpiece. A single stroke of the welding machine produces a seam relief joint.

In order to spot seam projection welding To ensure high-quality work, precision stamping is required. A tight fit between the welded parts along all projections ensures a very strong joint. Current intensity and the time it is applied to the projections play an important role in projection welding. The heating time should not lead to excessive deformation of the projection. Otherwise, the welded parts will begin to touch along the entire inner surface. This will reduce the current resistance between them, and the weld will be weak.

The disadvantage of projection spot welding is the high energy consumption for welding.

The advantages of this method:

• Allows you to connect multiple points of contact at once;
• High-quality seam that does not require further processing;
• Connection speed;
• An environmentally friendly way.