I wanted to experiment with hardening and heat treating tool steel and found a good project: upgrading the 5/16×18 bolts that secured my pickup truck ‘box’ so they cannot be hack-sawed off. Using a piece of W1 tool steel, we cut the part on the Emco V13 Lathe and Tormach PCNC 1100 then use an oxygen/acetylene to heat treat the part, first quenching it in water then tempering it back to reduce the brittleness.
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Post time: Jun-15-2017