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IndustryArena Forum > MetalWorking > Welding Brazing Soldering Sealing > Welding caused bend. How to straighten the square tube?

Thread: Welding caused bend. How to straighten the square tube?

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  1. 08-27-2015, 11:44 AM #1
    Azalin
    Azalin is offline Registered
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    Welding caused bend. How to straighten the square tube?

    I welded some 40x40x4mm iron tubes. The tube is 1 meter long. I've been very careful not to bend it got bent anyway. Now I need to straighten it. What is the best way for this? Heat, hit with an axe, jumping on it?

    Thanks.
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  2. 08-27-2015, 02:40 PM #2
    assink
    assink is offline Registered
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    Re: Welding caused bend. How to straighten the square tube?

    heat the side thats curved outward. The shrink of the heat will pull it back.
    So if you made a T-joint, heat the side without the welds.
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  3. 11-09-2015, 10:10 PM #3
    billboat10
    billboat10 is offline Junior Member
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    I have always welded one side a bit then the other an so on so the heat is the same both sides I was a coded welder years ago last job was on channel tunnel
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