Dot Welder

A Dot Welder, also known as a dot welding machine, is a specialized type of resistance welding machine used to fuse small metal pellets onto a base metal surface. It's particularly useful for repairing molds, dies, and other surfaces where a smooth finish is required. Unlike traditional spot welding, dot welding doesn't require complex timing sequences or forging pressure. 
Dot Welder

Dot Welder