I broke an expensive blade because of ooperator error. I had never tried tig welding a bandsaw blade before. So I just went ahead and tried it. It worked great! Only took me three tries to get the weld to last more than a few parts. But finally the blade is holding well. I'm cutting 1.5 dia stressproof. And I figgered it out all by myself. That page that Ernie Leimkuhler posted :
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't help one bit. His advice about amperage and filler metal could have been figured out by me, eventually, someday. I mean really, tempering the HAZ properly is just like falling off a log. Who needs someone to hold their hand when they are trying something like this out the first time? Well, me, actually. Ernie's info really helped. He states that done properly there is no need to weld both sides. I found that if I left a small gap, about .010", between the ends of the blade, the weld worked just the way Ernie said it would. I used 308ss filler because it was the only SS rod I had on hand small enough. There was no sugaring on the back side of the weld. I attribute this partly to using similar fixturing to what Ernie shows on his page. Thanks to Ernie again for his excellent welding advice. Eric