Single point convex welding and multi-point convex welding are designed with spherical, conical, and square convex points, and pre pressed on thin or rear parts, with a wide range of applications. Single point convex welding can be performed on spot welding machines; Multi point projection welding can also be performed on a projection welding machine, with up to 20 welding points per time.

Ring welding is the process of pre making a convex ring on a workpiece or using the sharp angle formed by the original profile and chamfer of the workpiece to form a circumferential weld after welding. The adaptability is wide, and the sealing weld should be performed on a DC welding machine,

Diameter 80mm, non sealed welds can also be performed on AC welding machines; Shell, nut, injection port, etc.

T-welding, prefabricating single or multiple spherical, conical, curved, and toothed protrusions on a rod shape. One time pressurized and electrified welding. T-welding is performed on spot welding machines or projection welding machines, with T-joints such as screws and tube sheets.

Roll convex welding is a process of pre making multiple circular or long convex points on a panel. The roller electrode presses the workpiece tightly, and the current only passes through the positions with convex points. The electrode and workpiece continue to rotate. Application specific rolling welding machines, automotive brake pedals, etc.

Cross welding of wires, using the raised parts of the contour of wires (including pipes) to cross and contact each other. Widely used, it can be performed on convex welding machines or multi-point welding machines, such as mesh welding.