About Tempering Metal (how I explain it to kids): The little metal guys normally stand at attention in rows — millions of them (molecules). When you heat them up red hot, they start dancing and get all mixed up and out of order; not in rows any more. When you cool them down, they get [...]
Posts Tagged ‘Metal’
Making a punch; heat treating tool steel
Posted in Engineering, Fun, Interesting, Projects, Science, Technique, tagged Kids, Metal, Nails, Punch, Tempering, Torch, W1 Tool Steel, Water Hardening on July 22, 2011 | Leave a Comment »
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