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Thread: Digger bucket

  1. #1
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    Default Digger bucket

    I need to weld some tooth adapters onto a small digger bucket. I would have thought the best bet is to stick it with Kobe LB52-18 (E4818), out of a rod oven, with 150c preheat on the bucket. But a bloke told me to just go ahead and MIG it. Does anyone know if you have problems with weld cracking etc when MIGing to the blade of a bucket?

    Thanks.

  2. #2
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    I have just used the mig when reattaching broken teeth to Bobcats ,never had any problems and no preheat.

  3. #3
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    depends on the mig prob 250a min if its 16mm thick and would definatly need to be fluxcore wire

  4. #4
    boilermaker1 is offline Boilermaker Welder and soon to be Fitter
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    Quote Originally Posted by spooled View Post
    I need to weld some tooth adapters onto a small digger bucket. I would have thought the best bet is to stick it with Kobe LB52-18 (E4818), out of a rod oven, with 150c preheat on the bucket. But a bloke told me to just go ahead and MIG it. Does anyone know if you have problems with weld cracking etc when MIGing to the blade of a bucket?

    Thanks.
    I have welded tooth adapters with WIA 16 tc with no problems
    Kobe LB52s are just as good

  5. #5
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    like the supervisor says,migs fine if machine is big enough.ive done hundreds of buckets and repairs,no probs at all.may help to warm up all parts a little to remove chill if mig is just big enough.16tc's etc are fine if useing the arc.cheers

  6. #6
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    Quote Originally Posted by thesupervisor View Post
    depends on the mig prob 250a min if its 16mm thick and would definatly need to be fluxcore wire
    I'll be using a 400a machine so no probs there. Must be flux core? I've got some inner shield 232 is that ok or does it need to be low hydrogen flux core? I was thinking of actually MIG welding them, as in solid wire with shielding gas, no?

  7. #7
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    Thats all I have ever used 1.2 mild.

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    .9 or 1.2 should make no diferrence at all,and if you use solid wire and and gas it will be fine,as long as it is all clean and not rusty and the teeth are not on the mounts when you weld them up.are you useing cig gas?

  9. #9
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    Quote Originally Posted by danielhobby View Post
    .9 or 1.2 should make no diferrence at all,and if you use solid wire and and gas it will be fine,as long as it is all clean and not rusty and the teeth are not on the mounts when you weld them up.are you useing cig gas?
    Yeah, Universal with 1.2 wire.

  10. #10
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    Quote Originally Posted by danielhobby View Post
    .9 or 1.2 should make no diferrence at all,and if you use solid wire and and gas it will be fine,as long as it is all clean and not rusty and the teeth are not on the mounts when you weld them up.are you useing cig gas?
    BTW you must be old like me, its boc now

  11. #11
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    Quote Originally Posted by spooled View Post
    BTW you must be old like me, its boc now
    yessiree,old and deaf(bloody hearing aids cost me3.5k last week!!!)and getting a bit short armed as well!!.boc universal is perfect,ther is nothing on a bucket that is thoroughbred!

  12. #12
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    err....just thought I'd throw my 2 cents worth, being a fitter and all that, What I've found is that arc outside, MIG inside. And, as a rule up here in the mines (Pilbara) only arc is used, using low hydrogen rods (3.2) for all bucket work, for that matter it's all that is used on site for both fixed and mobile plant.

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