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  • Users: jsokal
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  1. jsokal

    Discoloration of 347SS parts in brazing cycle

    Greetings, I have an odd problem, and I hope someone can steer me to a solution. I am vacuum brazing some 347SS machined parts with AMS4787 (gold-nickel) alloy in a vacuum furnace at 1825°F with a partial pressure of argon at 1torr. The 347SS detasil sometimes come out quite blue,with the brazes...
  2. jsokal

    Heat Treating IN718 Shafts

    Greetings, I would like to have anyone's opinion regarding the vacuum fce heat treatment (solution treating 1750°F) of 50" long 2-3" thick bored out shafts made of IN718. Here is some background: We have a new application where they want to minimize any shaft runout during the heat treatment. My...
  3. jsokal

    Vacuum Furnace Brazing IN-713 with BNi-2

    I am particularily interested in any comments related to the pre-braze preparation for IN-713 using BNi-2 braze alloy? Can this braze be accomplished without first applying a nickel plate of 0.0003-0.0006"? I have heard that only a nickel blast (Nicrobraze) can do the job.

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