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Hardfacing Bushhog Blades
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Posted by Bill Caldwell on February 27, 2005 at 19:05:46 from (12.73.92.133):
Few days back. . .I asked a question about removin' bushhog blades. . .Thanks for all the replys. Haven't forged out any in a few years. . .been told it's cheaper to replace'em. So. . .for all you hands that have a dc weldin' machine. Lincoln makes a hard surfacing weldin' rod, the deposit is both forgable and heat treatable. Abrasoweld is the name of the rod. Works for many applications. Bushhog blades for example. Run beads on the surface to be built up with the same rod manipulation as you would a 7018. (weave, don't let the rod tip leave the puddle) heat just the edge with a forge or a with a rosebud. Hammer on it. . .get it to the shape you want. . .grind or belt sand to final shape. . .usin' a magnet, reheat until edge loses magnetic attraction, quinch in oil, polish edge (grind or sand) reheat edge to a light brown. . .let cool. No need to heat entire blade at anytime. . .just work on the edge, length of cuttin' edge. . .heat no more (red) than 1" back from the edge. Welded and heat treated edge will Rockwell around 58 c scale. Thanks,
Wild Bill Caldwell
Blacksmith, Bladesmith, Gunbuilder
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