MetalMuncher Posted August 19, 2009 Posted August 19, 2009 Greeting fellows smiths!!! Been doing lots of lurking, havnt much time for anything. But I want to make myself a small puukko. My questions is exactly how thin do you grind you bevels before tempering? In my past experience, I tempered a scandi, but the bevel was left at about a dimes thickness. I had a really rough time grinding it down to a useable edge. Will the edge be prone to cracking if I ground it down all the way? Or will it hold up. I will be quenching at Curie temp, in some warm motor oil. Most probably will be using an old file or 5160. Tempering at 175 C. for a durable, tough edge. Cheers mates!! Thanks in advance for any help! Michael Quote
ThomasPowers Posted August 19, 2009 Posted August 19, 2009 Usually I leave the bevel the thickness 1-2 mm before hardening and temper immediately after hardening. Of course I have a belt grinder to make cleaning up the edge easy after heat treat. I think you are using the term tempering for several stages of heat treat where we will often break it out into: Normalizing, Hardening, Tempering; to prevent confusion when we are discussing specifics. Quote
MetalMuncher Posted August 21, 2009 Author Posted August 21, 2009 Thanks Tom. I will keep the terms exact next time. Cheers Quote
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