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Posted: 3/30/2016 2:52:25 PM EDT
| In the past I've gotten my blades super hot and dropped them in water... usually worked ok but not exactly scientific. Now I'm trying to do it a little more precisely cause I've got some pieces that I really don't want to crack. Talking about getting the blades to about 1500deg/nonmagnetic and then quenching; are there problems with exceeding that temp? does it make the blade more prone to cracking? |
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Quoted:
In the past I've gotten my blades super hot and dropped them in water... usually worked ok but not exactly scientific. Now I'm trying to do it a little more precisely cause I've got some pieces that I really don't want to crack. Talking about getting the blades to about 1500deg/nonmagnetic and then quenching; are there problems with exceeding that temp? does it make the blade more prone to cracking? Non Magnetic is about 1427F in most steels. 1500F a color change or 2 above non magnetic. Exceeding that temperature can cause cracking or excessive grain growth. Grain Growth can cause the knife to be weak and or not hold an edge very well. Temperature control is important and the full heat treat process is the most important part of knifemaking in my opinion. You can take a piece of mediocre steel and nail the heat treat to make a great knife. On the other side of the coin, you can take a piece of very high end steel screw up the HT and have a crappy knife. |
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