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Showing results for tags 'annealing'.
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I am a new knife maker. I got ahead of myself and heat treated my blades before I drilled holes for the scales. I did a great job heat treating but now I can't anneal the blades to be able to drill them. I have tried several normalizing sessions. I have taken the blades to critical temp an allowed to cool very slowly. It doesn't seem to matter what I do, it almost seems like these blades are only getting harder. I am using a forge so my temps are estimations at best and am mostly going by sight and color of metal. I took a few of the blades and let them soak at critical temp for about 15-20 minutes before letting them slowly cool. The blades seems even harder. The file still skates across it like it did after the quench for heat treating. Any ideas?
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I did a site search on Google foor this topic and only found one discussion that didn't yield much, so I'm asking again. I recently started using 1095 in my Damascus and I have this multi-bar pattern all welded up and ready to accordion cut. I normalized 3X and set the bar to anneal. The bar measures 1-1/2" x 7/8" x 8" Into the Paragon: Ramp up to 1450 @ 250 degrees per hour, hold for 1.5 hours Ramp down to 1200 @ 100 degrees per hour hold for 1 hour Turn off oven. This would not cut on the bandsaw (at least not very easily, it killed two blades before cutting 6 lines each about 3/4" long) A quick call to Hancock, and we decided to try it again. So, I put it back in to the paragon. Ramp up to 1350 @ 200 degrees per hour, hold for 2 hours Ramp down to 1250 @ 100 degrees per hour, hold for 2 hours Shut the oven off. This is even harder than the first one. It is eating bandsaw blades before making a single cut. Any ideas or suggestions? Here is the bar:
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