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  1. #1
    Join Date
    Feb 2008
    Posts
    1

    Question amperage and volt for spray arc?

    Can you HELP ME? What is the proper volt setting (+ or -3 volts) and amperage setting (+ or -20 amps) for spray arc with .068 wire FCAW:confused

  2. #2
    Join Date
    Nov 2007
    Location
    Southern Louisiana
    Posts
    421

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    try this link it might help

    http://www.millerwelds.com/education...calculator.php

    good luck

  3. #3
    Join Date
    Dec 2007
    Location
    Celina, Tx
    Posts
    12

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    I might be out of line here but to the best of my knowledge, Flux Core does not "spray" as a solid wire will. It is more of a globular transfer. If you are used to true MIG spray then FC will seem more like short circuit running on the high side. Don't forget, some of that diameter is taken up by the flux rolled inside the wire so the actual effective diameter is less than that listed on the spool.

  4. #4
    Join Date
    Mar 2007
    Location
    Fraser Valley, BC
    Posts
    593

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    It depends on what kind of flux core wire you are using. Some do work in a spray transfer, but most utilize a globular transfer. Any of the flux core that uses CO2 or 75/25 will be a globular transfer.
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