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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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I'm going to make a wire-bending fixture for putting fairly small-radius
bends into 1/8" music wire*. I have some 1/8" oil hardening drill rod and a slightly undersized 1/8" reamer designed for installing dowel pins in tooling. I also have some 1-1/4" round bar, made of mystery steel but there's a good chance that it'll harden at least a bit if encouraged. So I'm planning on putting a couple of pins made out of the drill rod into the end of a bar, and bending the music wire around the pins. I'm _assuming_ that if I don't harden the drill rod that it'll bend, although I'm in a hurry so I'm going to test that assumption by trying to use the tool. After I bend up my first attempt at a fixture I'll want to do it up right. It seems like I should just be able to heat up my whole assembly to a dull red then chuck the thing into a bucket of water -- does this sound correct? I have some pottery clay lying around so I'll probably paint the pins with clay & charcoal in an attempt to protect them from decarburization. When I fish it out of the bucket should I try tempering it? If so, how, and how much? The heat-generating tools I have available are pretty much a propane torch and an O-A cutting torch. The temperature measurement tools I have are my own somewhat color blind eyes. * Music wire is moderately high carbon -- 0.7 to 0.9%, and drawn in a way that work-hardens it nicely. It's soft enough that you can cut it with diagonal cutters successfully, but hard enough that you'd better hide the cutters from their rightful owner when you're done. -- http://www.wescottdesign.com |
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