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  1. #1
    Join Date
    Feb 2009
    Posts
    107

    Default Broken cast iron mail box bracket.

    Help please, a friend has an ornamental bracket for their mail box that has been broken by a car backing out at a recent party. They have asked me if I will have a go at repairing it. The distance from the road back to an electrical outlet is 100 feet. for 110 work have a Dynasty 200 DX and a Millermatic 211, I would rather stick it with the Dynasty, my only rods are 6010, 6011, 6013, 7018. I was just going to tack it a few times, as that should be enough.
    So would you tell her to get a real welder or have a go and if have a go what rod should I use. The casting is about 3/8 in thick. I have never welded cast iron before but have seen broken castings that look like pot metal but this stuff looks very pure from what I can see.
    Thanks for any help.

  2. #2
    Join Date
    Sep 2005
    Location
    Salem ,Ohio
    Posts
    3,899

    Cool

    Can you unbolt it and take it inside? Out of the rod choices you listed 7018 prob would be the best of the 4 rods...Bob
    Bob Wright, Grandson of Tee Nee Boat Trailer Founder
    Metal Master Fab Salem, Oh 44460
    Birthplace of the Silver & Deming Drill
    1999 MM185 w/185 Spoolgun,1986 Thunderbolt AC/DC
    Spool Gun conversion. How To Do It. Below.
    http://www.millerwelds.com/resources...php?albumid=48

  3. #3
    Join Date
    Feb 2009
    Posts
    107

    Default

    Quote Originally Posted by aametalmaster View Post
    Can you unbolt it and take it inside? Out of the rod choices you listed 7018 prob would be the best of the 4 rods...Bob
    Sadly not that easy, the bracket has three welds on either side, each about three inches in length. It would obviously mean cutting it off the metal pole, I suppose it is an option doing it that way but would a lot more time.
    In a way I wish I had said I can not do it. I have helped so many people out with a repair of something or other many times now, I can do all that is needed to build a house and a lot more, never charge them. I have only seen this person once in my lifetime, she is an old lady living on her own and wealthy as well, if I can help some people I just do it, after all why not.
    Anyhow, would you cut it off and then just weld it back after the repair ?

  4. #4

    Default Broken cast iron mail box bracket.

    Why not just braze it? Just roll a set of tanks out there.

  5. #5
    Join Date
    Feb 2009
    Posts
    107

    Default

    Quote Originally Posted by Manisoba View Post
    Why not just braze it? Just roll a set of tanks out there.
    My tanks are back up in Alabama 128 miles away. Now I do have silicone bronze I use in the Millermatic 211 and a tank of Argon handy, would that be better than a rod of 7018

  6. #6
    Join Date
    Sep 2005
    Location
    Salem ,Ohio
    Posts
    3,899

    Cool

    Quote Originally Posted by jmpgino View Post
    My tanks are back up in Alabama 128 miles away. Now I do have silicone bronze I use in the Millermatic 211 and a tank of Argon handy, would that be better than a rod of 7018
    That could work. Give it some clean up with a grinder to remove the paint and maybe some preheat with a propane torch and go for it. But i would be tempted to try the 7018...Bob
    Bob Wright, Grandson of Tee Nee Boat Trailer Founder
    Metal Master Fab Salem, Oh 44460
    Birthplace of the Silver & Deming Drill
    1999 MM185 w/185 Spoolgun,1986 Thunderbolt AC/DC
    Spool Gun conversion. How To Do It. Below.
    http://www.millerwelds.com/resources...php?albumid=48

  7. #7

    Default Broken cast iron mail box bracket.

    That I can not answer. When I've welded a manifold or turbo mount with any success I've only used braze or arc rod with nickel in it. 7018 may work for that because there is no huge thermal cycles like on exhaust, but when I've tried 7018 or arctec 223xc in a pinch it never lasted.

  8. #8
    Join Date
    Feb 2009
    Posts
    107

    Default

    Quote Originally Posted by Manisoba View Post
    That I can not answer. When I've welded a manifold or turbo mount with any success I've only used braze or arc rod with nickel in it. 7018 may work for that because there is no huge thermal cycles like on exhaust, but when I've tried 7018 or arctec 223xc in a pinch it never lasted.
    Well like a fool, I went down there cleaned off the paint, tried to hold the bloody thing in place with a couple of clamps, waste of time, they kept falling off, this thing looks like a New Orleans gate, fancy scroll work, nothing would hold it in place. So I thought if I could get someone to hold it roughly in place and I could use my left hand keeping all in place, I could stuff the 7018 rod in and get a few tacks. Well no bloody way, tacked it at the top, went down for the second tack and it had already warped out of place. So I have cut the remaining part of the bracket off the pole.
    Late, cold, dark and now pissed off, I am going to have another go at home tomorrow. No way I could have used the Mig, it is blowing down her in Albany Ga today.
    I honestly have a huge amount of respect for those of you here who are real welders. Some years ago I had some dry cleaners. An air piston had broken at the top of a large pressing machine cylinder, no spare and next day air for the part would have been high price, so before I ordered a new one, I called out the local welding chap, truck came, fired up his machine and in ten minutes the thing was better than it had ever been. Charged me about $60, the part was well over $300, I sold the stores eleven years later and it held up all of that time, it had massive force hour after hour and year after year. I will never forget that, little did I know that one day I would try and add his skill to my quiver.

  9. #9
    Join Date
    Nov 2006
    Location
    Hampton, Va.
    Posts
    386

    Default

    I mean no direspect but call a welder to come out and fix it before you damage it beyond repair.


    Wheelchair

  10. #10
    Join Date
    Feb 2009
    Posts
    107

    Default

    Quote Originally Posted by Wheelchair View Post
    I mean no direspect but call a welder to come out and fix it before you damage it beyond repair.


    Wheelchair
    I fully understand where you are coming from and no disrespect taken. The bloody thing is only worth about forty five dollars max. You are correct in the possibility of me damaging it but now I have it home, if I could only figure a way of holding the two parts together, I honestly feel I can do the job. I have no intention of reproducing the initial shape in terms of full welds around the breaks and then grinding back the welds and reproducing the form lines. After all it is just a bracket for a tin mail box.
    I am going to clean the area I tacked, try some wire in an attempt at holding the joints in place because there are so many scrolls in the thing, that I can wire up those close to the breaks and still be able to get some wire into the break, I then think I can then Mig it with some silicone bronze.
    When I cut the bracket off the post, I made sure I left some of the weld on both the pole and the bracket. One thing for sure the bloke who welded it on the pole was not shy of using plenty of heat because the welds were very thick and looked like from a mig gun.
    Trying too be a decent person can sometimes be a bloody pain in your own arse.
    Happy Christmas for those of you who are reading this. Very few people think of Mary holding Christ in her arms after giving birth 24 hours before, tired but proud, just like our Mothers felt when we were born. When I matured at about 50, I suddenly started thinking that my birthday was not just about me, Mother had gone through nine months of ****, the end being a lot of pain. Mothers are the ones who had the BIRTH DAY, not us, we just arrived.
    Cheers again to all of you, I am enjoying a Gin and Tonic and a reasonable college bowl game.

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