Finally succesfull

galadduin

galadduin

Joined
Dec 25, 2004
Messages
1,363
:D Thanks for repliers on my previous threads about my struggle with D2.

I finally managed to HT a D2 reed knife with excellent result. I couldnt and wouldnt do it just by reading tech-sheets. Especially the reply mentioning "bright yellow" and "oil quench" by shgeo really made me successfull.

This is the story, that will help novices a lot to HT d2:

This night I took my rough finished D2 blade to the forge and prepared a jar of warm motor oil. Preheated the blade to red, and the forge was glowing orange, I placed a 1 1/2 black pipe in the middle of the forge and placed the blade in the middle of the pipe. Checked the knife with magnet and it was barely sticked and was glowing pale orange . I raised the gas pressure a little and very carefully watched the color changes. It was mid-orange when loose the magnetism. Raised pressure just a bit and air a little and waited it was bight orange. Took the knife out and was light yellow outside, it was just a second interrupted and no damage was done so far. (In the bright forge to recognize the color of steel is nearly impossible). Soaked about 40 min. But the forge temp was not stable and I had to make adjustments every time to keep the blades color same. It was damn hard work but I managed. Because of the pipe thing the heat was sufficiently even so i didnt had to move the blade back and forth. When the soak time was over i took it and dunk right in the oil. Waited 2-3 seconds and placed it between the vise jaws and squashed the blade harshly to flatten (it wasnt warped i think but I had to be sure as these reed cutlery has to be perfectly flat). Took the blade in the oil as it was too hot. Right after I could barely touched the knife it was time to temper. The oven was preheated 200 C. After 3 cycles of 1 hour temper ground and checked the edge with a brass rod. Tataaa, no chip, no bend, perfect. Finally I made peace with D2 after months of stuggle.

This is how you can HT a D2 blade via the most pirimitive way :D .


Thanks for all, you guys rock :D :) .

Best wishes
Emre KIPMEN
 
indian george said:
Cooool!! Thanks for sharing Master Emre :D
PS: Did you learn how to grow a beard YET???? :eek:
Click to expand...

I left my beards untamed, so I dont need to learn anything :D :p ...
 
Still trying to figure out why you quenched the blade in oil? D2 is an air hardening steel.
 
Danbo said:
Still trying to figure out why you quenched the blade in oil? D2 is an air hardening steel.
Click to expand...

I covered the steel with a thin layer of clay to pervent oxidization and scale, I was afraid it would affected by the thermal isolation, so I choose a bit faster medium and it worked very well....
 
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