Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by alpinecryo

  1. alpinecryo

    Cryogenic Hardening versus Std. heat-treating?

    Hi Wayne, I'll try to clear up some things. First, cryogenic treatment is an enhancement to heat treating, not a replacement. You cannot take a piece of soft tool steel and increase the hardness one point through treatment. The transformation of the grain structure that takes place during heat...
  2. alpinecryo

    Hardening of steels

    Kipp, To harden 4140 to higher Rockwell, you will need to anneal the steel and then repeat the heat treating cycle. You can expect to get decarbing, or scaling. Once 4140 is heat treated, you will need to turn some of the OD to get below the softer outer layer. To get a different hardness, you...
  3. alpinecryo

    Cryogenic Lens Mounts

    There is a cryogenic treater, near Boston, who treats such mounts used in space to make the mount stable. He seems to be successful at it. If you are still interested, you can e-mail me and I'll give you his phone number ( dougb@alpinecryo.com) Dougb
  4. alpinecryo

    nitride heat treating

    There is more going on as a result of cryogenic treatment than is understood at this time. Why is carbide wear life increased, even when the carbide is TiN coated? The best advise I have is to try it on whatever and accept the results of a scientific study regardless of whether it is understood.
See more

Part and Inventory Search

Back
Top