1922 welding residual stress and cracking

One-line reference to the January 1922 *Welding Journal* article on residual stresses and cracking — used to anchor the claim that the residual-stress problem in additive manufacturing is the same problem welders have known about for nearly a century.

Another thing — I'm not trying to rush this — part four, design rules. One of the design rules: there are limitations on the size of what you can build, because most of these processes build up residual stresses. You can see what happens with the residual stresses if you're trying to electron beam or laser glaze or melt the surface — you're going to end up cracking. That January 1922 Welding Journal article, residual stresses and cracking. Later Alex goes through and has a nice little plot — may not be his plot, he probably collected it from various sources — and it shows the maximum size when you get to blogs 9 or 10.