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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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Follow-up:
I cut a small chunk off the saw for a test piece. I was able to anneal the steel with no problem. I could file it and cut it with my jewelers saw. So now I hardened it - quenched in ice water (I figured if it was going to shatter on the quench, I wanted it to happen with the test piece). Still working great, the metal is brittle enough to snap with my fingers and the file wont touch this stuff. Time to temper (and here is where the problem starts), I polished one side with emory cloth and put it in the toaster oven on a scrap of aluminum foil. After about 12 min, I see colors dancing on the steel. When I pulled it out it was mostly blue (almost a neon purple) and some dark straw colors scattered around. Well the temper must have not gone very deep or been incomplete because I could still snap the steel with my fingers. It looks like I could use some guidance with the tempering - anybody have any ideas? Bruce "Bruce C." wrote in message news:ju48b.416482$YN5.280582@sccrnsc01... The saw blade is too hard. Tin snips don't even leave a mark. I tried a file to test the hardness and it burnished the teeth on the file. This is why I think the steel is too good to just pitch into the dumpster and I think it would hold a nice knife edge. Another thing, I like the flexability of the blade - this is the part that supprised me. I was expecting anything that hard would be very brittle. After thinking about it some more, I'm going to cut off a test chunk and experiment with annealing and rehardening. If I'm successful with that, it sure would make the knife making go quicker. I don't especially need another paring knife but the steel is only about .020" thick. Probably the best use for it would be a filet knife considering the flexability. Bruce |
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