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I just went to a bunch of blacksmith sites and didn't spot one.
Think it would work? Of course it needs a good sized compressor.
Think it would work? Of course it needs a good sized compressor.
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Or an electric one. Don't you think the stroke might be a bit short and a little to fast?Originally posted by 1-800miner View Post--
Bob La Londe
Professional Hack, Hobbyist, Wannabe, Shade Tree, Button Pushing, Not a "Real" machinist​
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I always wanted a welding stinger that looked like the north end of a south bound chicken. Often my welds look like somebody pointed the wrong end of a chicken at the joint and squeezed until something came out. Might as well look the part. -
Pavement breaking jackhammers are all about the short sharp high speed impact to break up the brittle concrete and stones. I don't think that would translate well to the slower but very heavy inertia used by drop hammers for forging hot steel.
The other thing is that they are a relatively short throw. Maybe an inch or so? Working at forging down a fairly large piece to a long strip or upsetting a piece to something thicker would require you to alter the hammer to anvil spacing frequently. And even during a single heat. Also the impacts would change a lot depending on which end of the stroke you're working. All of which would rapidly become a major PITA I suspect.
A quick check showed that there's a number of interesting looking shop made smaller size drop hammers that would rapidly save your arm and shoulder for doing the heavier stuff. It's the sort of item that would be pretty easy to weld up from stock steel pieces from what I'm seeing. Designs that use a far quieter electric motor to raise the hammer then drop it. And with a bit of the right design choices I don't see why they can't be done so that the drop height is variable off of a rocking foot pedal.
They also consume massive amounts of air. You'd need more than just a "good sized compressor".Chilliwack BC, CanadaComment
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I have a Stanley hydraulic jack hammer, its a real beast lot of power. Might be easier to power than an air one.Comment
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Russ Swider had a shop in New Mexico years ago and used pavement breakers for localized forged upsets (heel blocks and such) and punching holes in hot steel. As others have observed, the stroke is quite short so are limited to certain applications. A "tire hammer" or even foot powered treadle hammer would work better for general shop forging.Comment
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