Harvey It is my understanding that oxy-acetylene fusion welding was was commonplace in aircraft construction prior to the introduction of tig welding.
Race car guru Carroll Smith has some good info on gas
welding 4130 tubing in one of his books, and I dimly
recall that 4130 was original formulated to be gas
welded. Even if my memory is faulty, he's worth
reading:
http://www.amazon.com/
David Benson Auckland, NZ
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