I bought this book many moons ago and read thru it a bit but mostly hunted out certain things I was curious about. Here is a link to the PDF. IF you go to page 162 it doesnt talk about how to weld a frame, but it does talk heavily about the structure of metal before, during and after it has been welded. I like this guys way of making pointy head topics fun to read.
Engineer to win : Smith, Carroll, 1932- : Free Download, Borrow, and Streaming : Internet Archive
278 p. : 28 cm
archive.org