This article was updated March 7, 2023. It was originally published Dec. 9, 2004. Engineers have an impressive array of ways to join two pieces of metal including adhesives, nuts and bolts, and a long ...

At one time or another it's happened to all of us. While working in the shop late at night trying to finish a project, we discover a part that will need to be repaired by welding. Luckily, some of us ...