What are some key tips to welding chromoly tubing or plate?
The first and most important factor is to use an appropriate tig (tungsten inert gas) welding machine. The next tip would be to clean the material as best as possible outside the weld area, as well as inside the weld area. Clean material welds better; we generally use cold-drawn material as it is cleaner, and welds better than hot-drawn material. Expansion holes must also be drilled to keep the tube from pressurizing, and blowing back out distorting the weld area at final closing of the weld. These must be drilled in a tube that is going to be closed off. If the tube is not to be closed off (welded shut or mounted at either end) it is also good practice to purge the tubing with argon from the inside. Tiny welds are not always good welds; it is imperitive that an appropriate size filler material be used when welding two sections together. Fusing two thin components together is not recommended: as material is drawn into the weld area, the component will thin out around the weld losing st
