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  1. #1
    Join Date
    Feb 2010
    Location
    Cambridge, MA
    Posts
    213

    Question RMD Heat Calculators?

    One of the tech reps from the LWS came by the apprentice school today and was telling us that ASME is going to require a heat calculators on all the RMD machines, like the PipeWorx. The rep's info was coming straight from Miller. Has anyone heard anything about this? is there a place to find info on this? thanks in advance!
    American By Birth, Union by Choice!

    4th generation Pipefitters LU 537

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  2. #2
    Join Date
    Oct 2007
    Posts
    2,949

    Question

    You mean the "Weld Pre-Heat Calculators?" Lincoln sells them on their web site for $5. Look under "Books, Educational Materials."

    Dave
    "Bonne journe'e mes amis"

  3. #3
    Join Date
    Feb 2010
    Location
    Cambridge, MA
    Posts
    213

    Default

    no from the sounds of it, its an add on to the machine that "locks-in" a heat range, and wont allow the user to go lower or higher then a specific range as determined by the ASME
    American By Birth, Union by Choice!

    4th generation Pipefitters LU 537

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  4. #4
    Join Date
    Oct 2007
    Posts
    2,949

    Default

    Must be something you can program into the parameters. Might have to give the Miller Rep a call, or Cruizer might know.
    "Bonne journe'e mes amis"

  5. #5
    Join Date
    Feb 2010
    Location
    Cambridge, MA
    Posts
    213

    Default

    the kid said he just got the preliminary stuff from miller @ the end of last week, and he doesn't have all of the details. from what he was saying was it would be roughly $200, i was just trying to get some advance info for the instructors. The tech rep said he was going to do some digging as well.

    Thanks
    Jeremy
    American By Birth, Union by Choice!

    4th generation Pipefitters LU 537

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  6. #6
    Join Date
    Feb 2004
    Location
    Boulder, Colorado
    Posts
    483

    Default

    Heat Input is more than just a function of weld output. Its encompasses all of the variables of the weld output, travel speed and time.

    On our orbital pipe systems, we have a heat input calculation function. This is commonly used with alloys that are very sensitive to heat input, like super duplex stainless. Since the orbital system controls all aspects of welding, it can keep track of all variables, such as voltage, amperage, travel speed, filler metal delivery ( this could include deposition rates and hot wire energy) ect....

    One aspect that manual welding equipment cant control is travel speed. I dont know what Miller would be trying to accomplish by adding this heat input function.

  7. #7
    Join Date
    Feb 2010
    Location
    Cambridge, MA
    Posts
    213

    Default

    GTA-
    at the moment i'm primarily a SMAW guy, and have only watched the guys run the pipeworx. That being said, I thought the IPM settings would dictate travel speed, but i must have thought wrong. I do know a lot of the stuff done with the Pipeworx is usually done in "fab shop" setting on positioners.
    American By Birth, Union by Choice!

    4th generation Pipefitters LU 537

    SpeedGlass 9000x Hood
    Miller Elite Titanium 9400 Hood

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