Emergency repair?

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Old May 7, 2009 | 06:36 PM
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Agtronic's Avatar
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Default Emergency repair?

Hey guys,

It's currently 10:30 PM here in Montreal, and I just broke my band saw blade. I don't have any left in stock, and I have a customer driving down from a city 5 hours away for a job tomorrow morning.

I was thinking of welding it back together, but I'm wondering if it will hold. Anyone have any ideas? Damn I hate situations like this!

Thanks!
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Old May 7, 2009 | 06:46 PM
  #2  
downest's Avatar
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Default Re: Emergency repair?

I've done that before. Does your saw have a welding function on it? I have used some that have clamps and a button to quickly weld the blade back together. I have also TIG'd the blade back together and it'll work fine.
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Old May 7, 2009 | 06:47 PM
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Default Re: Emergency repair?

i know you can weld carbon steel blades but i don't know about bi metal
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Old May 7, 2009 | 06:49 PM
  #4  
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Default Re: Emergency repair?

I'm a dumb ***, I just realized the blade only derailled, and I was panicking for nothing.

Thanks for the ideas though. It is a bi-metal blade, so I'm not sure if it's heat treated or whatever. Next time it breaks, I'll try it to find out.

YAY!
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Old May 7, 2009 | 06:51 PM
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Default Re: Emergency repair?

weld it and grind it smooth lightly on the belt sander. i've done this a number of times. if i can weld it, i will to run it as long as i can. i just get a flat piece of plate, clamp the blade to it flat and weld one side. grind, done. i've had them last for a month afterward, and 5 minutes sometimes. it can't hurt to try markku.
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Old May 7, 2009 | 07:34 PM
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Default Re: Emergency repair?

Originally Posted by weiRtech
weld it and grind it smooth lightly on the belt sander. i've done this a number of times. if i can weld it, i will to run it as long as i can. i just get a flat piece of plate, clamp the blade to it flat and weld one side. grind, done. i've had them last for a month afterward, and 5 minutes sometimes. it can't hurt to try markku.
you don't anniel them, and they dont break??
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Old May 8, 2009 | 05:04 AM
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Default Re: Emergency repair?

The welders that are mounted on the high end band saws don't anneal. They just electrically weld the blade ends together. Then you just grind it and install. I have heard of guys brazing them together and not having any problems, as well.

It is actually cheaper to buy blades in a bulk roll and then weld your own.
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Old May 8, 2009 | 05:26 AM
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Default Re: Emergency repair?

Originally Posted by Nick Z32
you don't anniel them, and they dont break??

no annealing. sometimes they break 5 minutes later, sometimes 5 weeks later.
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Old May 8, 2009 | 08:05 AM
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Default Re: Emergency repair?

Originally Posted by 914Racer
The welders that are mounted on the high end band saws don't anneal. They just electrically weld the blade ends together. Then you just grind it and install. I have heard of guys brazing them together and not having any problems, as well.

It is actually cheaper to buy blades in a bulk roll and then weld your own.


well in school ther a DO-ALL vertical band saw and the blade snapped on it. i resisted welded it back together and for got to anneal as so as i turned it on and tightened it the thing snapped.

then i did the whole process over again with annealing and started chopping everything with no problem and its still cutting strong 2 months later
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