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Cast iron bed frame repair

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  • Cast iron bed frame repair

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    A friend asked if I could repair a bedframe for her.

    It was her grandfather's and she wants to give it to her
    granddaughter so how could I refuse.

    Side rails have a tapered pin and drop into the headboard which has a matching tapered socket.

    Both pin and socket appear to be cast iron.
    Part of one socket had broken off so I need to rebuild it.

    Had a piece of graphite and made a tapered pin to fit in the socket.
    This way I keep the socket the same shape during the rebuild process.
    Since I don't have a lathe, I drilled and tapped the
    graphite block 3/8-16 for a bolt and chucked it in my battery drill.
    Angle grinder and belt sander worked to fit the plug to the socket.
    I know I could have just welded the rail to the headboard
    but that would have ruined the sentimental value of the piece.

    Not too much experience with cast iron so I could use
    some advice in order to not mess this repair up.
    I plan to tig around the broken socket to build up the missing area.
    Any suggestions as to procedure and filler material are greatly appreciated.
    Miller Dynasty 350, Dynasty 210 DX, Hypertherm 1000, Thermal Arc GTSW400, Airco Heliwelder II, oxy-fuel setup, metal cutting bandsaw, air compressor, drill press, large first aid kit, etc.

    Call me the "Clouseau" of welding !

  • #2
    I have had a lot of success using aluminum bronze on AC or silicon bronze on DCEN tig braze for cast iron repairs. You can use it to build up an area to be ground back to dimension as well. I prefer the tig braze process on cast iron so you don't have to puddle the base metal.

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    • #3
      I would give it some preheat on the edges and MIG weld it with Crown Alloys 44-30 Cast Iron Mig wire.. Start on one side and build up stringers about half way around. Then start at the other end and meet in the middle.
      ..Bob
      Bob Wright

      Spool Gun conversion. How To Do It. Below.
      http://www.millerwelds.com/resources...php?albumid=48

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      • #4
        Ryan and Bob,

        Thank you for the alloy recommendations.

        Since I am not set up for MIG, I will need to TIG the repairs.

        I need to practice with both before I try the real repair.

        Luckily, color match is not and issue.
        Miller Dynasty 350, Dynasty 210 DX, Hypertherm 1000, Thermal Arc GTSW400, Airco Heliwelder II, oxy-fuel setup, metal cutting bandsaw, air compressor, drill press, large first aid kit, etc.

        Call me the "Clouseau" of welding !

        Comment


        • #5
          When I weld cast iron, I use a nickel rod. I heat the piece of cast iron up on my BBQ grill on high before welding it. I know this is a redneck way of doing things, but it always works and I've never had a piece break, crack or shatter.

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          • #6
            Like this...Bob
            Bob Wright

            Spool Gun conversion. How To Do It. Below.
            http://www.millerwelds.com/resources...php?albumid=48

            Comment


            • #7
              I heat cast parts up on my fire pit. Since it seems like such a waste of wood, I usually cook some hot dogs or something on it quick, toss the whatever it is into the fire, fish it out after I eat the hotdogs, braze the whatever it is up, and toss it back in the coals and let her cool down until morning. I guess that's redneck then. But I like hotdogs.

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              • #8
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                Used silicon bronze wire for this repair.
                Tigged it since I don't have MIG.
                Customer liked it and will pass it on to her grand daughter after she re-paints it

                Thanks for the alloy suggestions. .




                Attached Files
                Miller Dynasty 350, Dynasty 210 DX, Hypertherm 1000, Thermal Arc GTSW400, Airco Heliwelder II, oxy-fuel setup, metal cutting bandsaw, air compressor, drill press, large first aid kit, etc.

                Call me the "Clouseau" of welding !

                Comment


                • #9
                  Very nice! Thank you for the update and the pictures!

                  Comment


                  • #10
                    Glad you got it done.

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