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Copper Tube Work?

Discussion in 'The Hokey Ass Message Board' started by johnnybronco, Apr 18, 2012.

  1. johnnybronco
    Joined: Sep 16, 2010
    Posts: 58

    johnnybronco
    Member

    Is the copper pipe from Menard's or Home Diaper got too much other metal content in to make an effective welding backer? Experience? I wanted to get a piece and flatten it to finish a quick project today, but not sure if will work at all. Don't want to order a piece of copper bar and wait for it. Thoughts?
     
  2. Markgyver
    Joined: Aug 16, 2007
    Posts: 151

    Markgyver
    Member

    I bought some copper bar at my local metal scrap yard you might want to check around locally. I dont know about the tubing.
     
  3. I have a bunch of copper pipe from the local hardware (Lowes, Depot, etc) that I use as backer so I have various sizes. I just flatten down the pipe in a vise and go.

    Not ideal, but it works just fine.
     
  4. Shorty
    Joined: Sep 11, 2002
    Posts: 45

    Shorty
    Member

    Flattened copper pipe from Home Depot worked for me, try it on a piece of scrap metal first..... It works!
     
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  5. x2. I use it all the time.
     
  6. Yes. I cut a larger piece of copper pipe along its length, flattened/striaghtened it out, and was able to get a large backer out of it.
     
  7. Da' Bomb
    Joined: Apr 8, 2005
    Posts: 438

    Da' Bomb
    Member

    Copper tubing works just fine. Flatten it a bit, bend to suit the shape you're going to weld and weld away....
     
  8. Household copper is pretty pure stuff, at least very clean. If you want to get fancy with bending it, look for the type "L" which comes in coils. It bends a lot easier without work hardening.

    Bob
     
  9. yetiskustoms
    Joined: May 22, 2009
    Posts: 1,932

    yetiskustoms
    Member

    i got my " copper on a stick" too !!! flattened down pipe screwed to a broken harbor freight handle. has held up for years, the same cant be said for the H.B. hammer
     
  10. 56premiere
    Joined: Mar 8, 2011
    Posts: 1,445

    56premiere
    Member
    from oregon

    i use used tubing scavenaged from plumbing,air conditioning whatever comes around.works fine
     
  11. Another good use for copper tubing is wire lugs. I keep various sizes around that I flatten, drill and crimp onto big wires - and of course it solders well too.
     
  12. Big Bad Dad
    Joined: Mar 27, 2009
    Posts: 317

    Big Bad Dad
    Member

    Harbor freight sells a copper spoon to back up holes while mig welding. I bouught one for about $7 or $8. It works well.
     
  13. I use whatever is handy, I have flattened soft copper tube with good success, I have also used aluminum that I had lieing in the floor.
     
  14. Mr48chev
    Joined: Dec 28, 2007
    Posts: 26,551

    Mr48chev
    ALLIANCE MEMBER

    I bought one of these off Ebay a while back but don't think I paid this much for it. 260972361745

    The one I got is pretty solid and has a decently heavy piece of copper on it.

    It shouldn't be that hard to scrounge up a decent piece of copper or copper pipe or tubing that can be flattened though.
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  15. spooler41
    Joined: Feb 25, 2007
    Posts: 1,099

    spooler41
    Member

    Bronco, the best material to use is" buss bar" usually found in electrical panels. I have some that I've used for backers that is 1/4 x 2, just the right size. Over the years, I've
    made at least a half a dozen of them,each to suit a different need and I've still got more
    than 6 or 7 feet left.

    ..............Jack
     
  16. Use what you have handy. To flatten copper pipe, heat it to a dull red and then quench it in water. It will be much more malleable. After flattening if you what to fold it to make it thicker, reheat and requench first.
    I use a piece of buss bar that I riveted to a piece of 1/8"x 1/2" steel for a handle. I used 1/8" brass welding rod for the rivets. I taped up the handle with electrician's tape. The handle can be rebent to get it into hard to reach spots.

    ~Alden
     
  17. Lild
    Joined: Feb 22, 2010
    Posts: 260

    Lild
    Member

    Thats what I use. Made a backer stick for my buddy too. Works fine. They were scraps from a plumbing project and bought at Menards
     

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