I posted a link to some basics....some of the fault with using water to quench is that it creates steam bubbles around the piece you are quenching and doesn't cool as quick as is preferred....I usually use water and keep the piece moving quickly while immersed. Metallurgy is quite a vast subject and you should cover some of it in your welding classes. Quenching will harden the work and tempering is an additional process to relieve the brittleness created while hardening. When you temper, you will be watching the colors as they change in the piece you working on. Different colors for different functions of your finished piece. I will look for a color chart and post that link in another post.
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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