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  1. #11
    Join Date
    Aug 2012
    Location
    Hermiston Oregon
    Posts
    227

    Default

    I use this machine for my flux core wire
    and. When an aluminum job. Shows up I use the same machine. This happens maybe twice a week. Multiple times a day.
    I know I need to buy a second machine I just haven't. Made my decision on which one. I wanted a passport plus. But Miller goes and pulls it of the shelf. And I can't get a shop size machine. Because I'm mobile. On sites
    .
    Miller Bobcat 225NT onan
    Millermatic 211
    Spoolmate 100
    (Retapped to fit regular mig tips)
    Work better & less parts to stock.
    Miller 130xp
    T/A Dragster 85 (portability 11 pounds)
    Oxygen/Acetylene torch set 50'
    2. 4-1/2" grinders
    1. 9" grinder
    14" Makita chop saw
    1/2" Aircat impact gun 900#

  2. #12
    Join Date
    Aug 2008
    Location
    Orange, TX
    Posts
    1,191

    Default

    Quote Originally Posted by wheelman918 View Post
    I weld hi freq reverse polarity on aluminum everyday I do a lot of mig on cars and such my new mig machine has reverse polarity what is the purpose of reverse polarity when using a mig on steel?
    Reverse polarity (EP) TIG? Kinda tough on tungsten isn't it?
    MM200 w/spot controller and Spoolmatic 1
    Syncrowave 180 SD
    Bobcat 225G Plus LPG/NG w/14-pin*
    *Homemade Suitcase Wire Feeder
    *HF-251D-1
    *WC-1S & Spoolmatic 1
    PakMaster 100XL
    Marquette "Star Jet" 21-110

  3. #13
    Join Date
    Feb 2010
    Location
    YOUNGSTOWN, OHIO
    Posts
    172

    Default

    Quote Originally Posted by duaneb55 View Post
    Reverse polarity (EP) TIG? Kinda tough on tungsten isn't it?
    Good catch. I can't believe I missed that. Something isn't right in Millerville.
    JIM

    Owner Operator of JNT Mobile Welding & Repair LLC
    Millermatic 350P Aluma Pro
    Dynasty 200DX
    Maxstar 150 STL
    Trailblazer 302
    Suitecase 12RC
    Extreme 12VS
    Extreme 8VS
    Spoolmatic 30A
    Miller HF251D-1
    Passport Plus
    Spoolmate 100
    Hypertherm Powermax 45 and 85
    Ingersoll Rand Engine Driven Compressor
    Dake 75 ton H-Frame Press
    JD Squared Model 32 Bender
    Miller Digital Elite

  4. #14
    Join Date
    Feb 2010
    Location
    YOUNGSTOWN, OHIO
    Posts
    172

    Default

    Quote Originally Posted by eecervantes83 View Post
    I use this machine for my flux core wire
    and. When an aluminum job. Shows up I use the same machine. This happens maybe twice a week. Multiple times a day.
    I know I need to buy a second machine I just haven't. Made my decision on which one. I wanted a passport plus. But Miller goes and pulls it of the shelf. And I can't get a shop size machine. Because I'm mobile. On sites
    Have you tried switching to a gas-shielded flux core wire???
    JIM

    Owner Operator of JNT Mobile Welding & Repair LLC
    Millermatic 350P Aluma Pro
    Dynasty 200DX
    Maxstar 150 STL
    Trailblazer 302
    Suitecase 12RC
    Extreme 12VS
    Extreme 8VS
    Spoolmatic 30A
    Miller HF251D-1
    Passport Plus
    Spoolmate 100
    Hypertherm Powermax 45 and 85
    Ingersoll Rand Engine Driven Compressor
    Dake 75 ton H-Frame Press
    JD Squared Model 32 Bender
    Miller Digital Elite

  5. #15
    Join Date
    Sep 2009
    Location
    Canada
    Posts
    174

    Default

    Quote Originally Posted by wheelman918 View Post
    I weld hi freq reverse polarity on aluminum everyday I do a lot of mig on cars and such my new mig machine has reverse polarity what is the purpose of reverse polarity when using a mig on steel?
    High frequency tig welding on aluminum is generally done with AC weld current, not dc + (reverse) polarity.
    Someone is a bit confused here.
    Lincoln Idealarc 250 stick/tig
    Miller Bluestar 2E
    Thermal Dynamics Cutmaster 52
    Torchmate CNC table

    Ironworker Welder
    Operating engineer
    Owner/Operator Devlin Metal Works
    Custom CNC Plasma Cutting and Welding

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