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Cpm154 Heat Treat Question

Discussion in 'Other Projects' started by dancom, Apr 22, 2014.

  1. dancom

    dancom Dust Maker Best Shop Tool

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    CPM154, 5/32", foil wrapped and inserted into 1050°C oven for 15 minutes.

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    Can anyone comment on the hamon effect? The colours I haven't seen before. The plate quench is done with two copper plates, 3" x 12 x 1/2" thick. I kept the steel in the pouch for quenching.

    It's in the tempering oven now. I'll let you know how it works out.

    Dan
     
  2. Rob W

    Rob W Active Member

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    Ive seen that in my ATS34 as well , your temp looks good
     
  3. dancom

    dancom Dust Maker Best Shop Tool

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    Is there any way I can keep it? I usually clean it up with some 320 to 400 grit from this point.
     
  4. Fred/A

    Fred/A Active Member

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    That's only a surface oxydation, not hamon. It's like temper colors, any kind of abrasion will erase the coloration.

    Good looking knife by the way ;)
     
  5. Rob W

    Rob W Active Member

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    Beat me to it Fred but yes Dan it does look cool til you hit it with sand paper :(
     
  6. dancom

    dancom Dust Maker Best Shop Tool

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    That's what I was thinking. Boo. I'll clean it up and get'er done.

    I am assuming the colour variations are due to different cooling rates as plates are making contact with the thick part of the blade and the bevel is cooling at a different rate. Some makers plate quench before doing the bevel so that all of the blade is in contact with the plates. Any thoughts on this?

    D
     

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