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Author Topic: Bandsaw Blade welder  (Read 690 times)

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Offline Qweaver

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Bandsaw Blade welder
« on: November 06, 2017, 09:36:08 am »
I have enough broken blades to consider getting a blade welder.  I always bought bulk blade and made up my metal cutting blades when I was teaching welding.  But I found HHS blades  hard to weld and silver soldered them instead.  It would take a lot of broken blades to offset the cost of a blade welder. But it erks me to throw away an otherwise good blade and sometime on it;s first use.  I'll look for a used welder first.
Quinton
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Offline ladylake

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Re: Bandsaw Blade welder
« Reply #1 on: November 06, 2017, 09:42:26 am »
If your blades are breaking on the first or second use something is wrong, also when they break they a likely to break in a different place soon.  Steve
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Offline Magicman

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Re: Bandsaw Blade welder
« Reply #2 on: November 06, 2017, 09:43:54 am »
Correct Steve.

Remember that the "unbroken" portion of the blade has flexed and fatigued just as much as the break.  The weakest portion actually broke but the rest has micro-cracks and is ready to break.  I have seen blades break at two places and one in three places.  I had a broken section about a foot long to land beyond the loader.  I have examined broken blades and found cracks in several gullets.
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Offline pineywoods

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Re: Bandsaw Blade welder
« Reply #3 on: November 06, 2017, 10:21:45 am »
Q, I've been there, done that. Way back when, I had the same thoughts. Found a commercial saw shop with a resistance welder. For $2 bucks, he would weld them back for me. Definitely not worthwhile. They usually broke somewhere else before used enough to get dull...
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Offline Chuck White

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Re: Bandsaw Blade welder
« Reply #4 on: November 06, 2017, 12:33:03 pm »
I agree with all of the above, If a blade breaks, it's not worth the effort or the cost of a welder to reweld them!

When they break, then you weld them, they will break again soon!
~Chuck~
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Offline barbender

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Re: Bandsaw Blade welder
« Reply #5 on: November 06, 2017, 01:40:52 pm »
Maybe instead of messing with broken blades, you could look into just getting some bulk blade stock and welding them up👍
Too many irons in the fire

Offline drobertson

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Re: Bandsaw Blade welder
« Reply #6 on: November 06, 2017, 05:17:22 pm »
Piney really nailed it, really, we did a few metal cutting blades in the shop back when,, tig, with some tempering of course, the resistance way is the way,, my suggestion is to forget the welding, unless you like to struggle with things, then by all means, it can be done, it's just not very productive,  it does seem many folks here like to do stuff for the fun of it, they must have a better pension than me, ;)  fact is, resistance welding is the way, has been and always will be.  that said, proper methods still have to be used,, it's not a cake walk,, research,
only have a few chain saws I'm not suppose to use, but will at times, one dog Dolly, pretty good dog, just not sure what for yet,  working on getting the gardening back in order, and kinda thinking on maybe a small bbq bizz,  thinking about it,

Offline bandmiller2

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Re: Bandsaw Blade welder
« Reply #7 on: November 13, 2017, 08:14:11 am »
Quint, Many old commercial band saws had band welders mounted, I would haunt used machinery dealers. You just know most businesses that sell bands have low paid help welding bands all day, the secret is the welder and how its set up. As the guys have said old many times sharpened bands will soon break but bands that have low flex time may be worth rewilding. Perhaps an older welder and your skill will succeed. Frank C.
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Offline Kbeitz

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Re: Bandsaw Blade welder
« Reply #8 on: November 13, 2017, 09:27:41 am »
Lot of band welders for sale but not many that can weld a band
that fits on a band saw.  Most are to small. Make sure you check
the size of band it can do. welding easy annealing the hard part
to learn.
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Offline Qweaver

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Re: Bandsaw Blade welder
« Reply #9 on: November 13, 2017, 07:50:11 pm »
My hand made silver soldered metal cutting blades lasted very well.  Usually got dull before breaking.  I never knew of anyone resharpening them.  Much thicker blades tho' and easy to taper and jig silver solder.   
BTW  I used to build formula race car frames with all joints brazed with ni brazing rod and the steel tubes were often pulled apart before the joints failed in a crash.  When I build a frame now, I tig weld it.  Much faster but not any stronger.
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Offline fstedy

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Re: Bandsaw Blade welder
« Reply #10 on: November 15, 2017, 12:10:21 am »
You might be able to weld them and sharpen to remove any other micro cracks before using them again. Used to weld 3/4" blades for the DoAll metal cutting bandsaw without any problems. They had 24" wheels and turned a lot slower.
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