Forge welding is the newest way to create custom metal parts and structures using power tools. It's similar to traditional handwelding, but instead of using a welder with a torch, you're using an electric arc welder with an electrode tip
Here's a guide to learn about forge welding techniques, fundamental applications for use on sheetmetal, and some of the reasons why forge welding has become so popular. Some of my favorite links from this post include
Forge Welding Tutorial
Welding Video
Forge Welder Power Supplie
Forge Welding Tips
forge metal working