How would you repair this?

Shield Arc · Jun 13, 2015

Dan they are steel, with a rubber pad glued to them.

CNC Dan · Jun 13, 2015

Shield Arc said:
Dan they are steel, with a rubber pad glued to them.

So no metal to metal contact with the blade. Hmmm. The only thing that I can think of that would cause the blade to crack from the back is if it were nicked and had a stress riser, or if to were bent/creased at one spot.

A blade broke at work once, and we had no backups(guy was afraid to say he broke so many blades) so I tigged it back together to finish the job. Carefull inspection after the blade broke again in a different spot, revealed that the blade had many cracks all starting from the back.

We cleaned all the chips out of the wheels, and the top guard and blade life improved.

Mysfyt · Jun 13, 2015

Shield Arc, I see what the problem is. You keep your saw too clean! Just kidding. Blade cracking is the way better quality blades usually die.

Tractor Seabee · Jun 13, 2015

Shield Arc said:
Mysfyt where do you buy your blades at? I have the hardest time finding them. I just bought a dozen Lenox blades. So far I'm not impressed!:thumbdown: This blade broke about a month ago, it started cracking at the top of the blade, not at the teeth!

Yes I used ER 312 stainless steel.

SA,

Try Superior Saw and Supply in Tacoma. They have the welding/grinding machine to fix broken blades and make new ones from coil stock. They also grind chipper knives. 253 572 7171, 2712 Pacific AV

Ron

Shield Arc · Jun 14, 2015

Thanks Ron!:thumbsup: I can't say I ever heard of them. When working I always dealt with the Sharp Shop in Seattle. But that was mostly for chain saws, and demo saws.

dragoneggs · Jun 19, 2015

Tractor Seabee said:
SA,

Try Superior Saw and Supply in Tacoma. They have the welding/grinding machine to fix broken blades and make new ones from coil stock. They also grind chipper knives. 253 572 7171, 2712 Pacific AV

Ron

Good to know... thanks Ron!

Mysfyt said:
Oh yes, the world of bandsaw blades! Find yourself a good blade and then wait for the manufacturer to turn them into junk. Ive got over 30 years of experience of purchasing them, and quality comes and goes! Lennox used to be good blades, but I won't buy them anymore. Wikus,if you can find them in your
area are good right now. McMaster Carr blades have been good to me, but they get a bit pricey. And speaking of price, you get what you pay for.

The problem many companies often have with quality going downhill is the lack of understanding/desire to watch your tolerances and replacing or refurbishing tools to maintain the specs.