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Problems mig welding heavy equipment

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  • Problems mig welding heavy equipment

    Here’s the problem Click image for larger version

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  • #2
    The clean up ,getting it ready to weld Click image for larger version

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    • #3
      The welding and what it is Click image for larger version

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      • #4
        Not quite sure what you are saying? It broke because it was mig welded? Lack of penetration on the ends? If so I wouldn't blame the process, more the operator or whoever set up the operation. I would have no problem welding this with dual shield or inner shield, new or repair. Even bare wire mig with the right size wire.

        Having said that I'm sure you will make it right so it lasts many years.
        MM250
        Trailblazer 250g
        22a feeder
        Lincoln ac/dc 225
        Victor O/A
        MM200 black face
        Whitney 30 ton hydraulic punch
        Lown 1/8x 36" power roller
        Arco roto-phase model M
        Vectrax 7x12 band saw
        Miller spectrum 875
        30a spoolgun w/wc-24
        Syncrowave 250
        RCCS-14

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        • #5
          A good looking mig weld does not mean a good weld ,that is what happened here . I see this often on production welds . The factory edges of crack don’t have any sign of weld penetration

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          • #6
            Funny, when I replied there was only the top two pics. Now the rest show up. Nice job.
            MM250
            Trailblazer 250g
            22a feeder
            Lincoln ac/dc 225
            Victor O/A
            MM200 black face
            Whitney 30 ton hydraulic punch
            Lown 1/8x 36" power roller
            Arco roto-phase model M
            Vectrax 7x12 band saw
            Miller spectrum 875
            30a spoolgun w/wc-24
            Syncrowave 250
            RCCS-14

            Comment


            • #7
              hot and fast is production friendly but doesn't necessarily equate to adequate penetration. Cold lap doesn't have to be visible to be an issue. I love seeing those pretty welds pull clean off the surface of an adjoining part. Keeps the fear in me during my repairs.

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              • #8
                My posts take between a day and a week or so to post

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                • #9
                  Originally posted by Electric4Life View Post
                  hot and fast is production friendly but doesn't necessarily equate to adequate penetration. Cold lap doesn't have to be visible to be an issue. I love seeing those pretty welds pull clean off the surface of an adjoining part. Keeps the fear in me during my repairs.

                  Me too, that is why I stick weld all those type of repairs on my stuff!

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                  • #10
                    my uncle repaired excavator buckets he used basic electrodes or electrodes to weld the high penetration methane pipes, to patch the buckets he used the sheets of the elliptical leaf springs of the trucks that he recycled at truck mechanics or vehicle wreckers deposits of old iron.

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