The "Ask Nathan a Question" Thread

Nathan the Machinist said:
We will be producing some knives with a tweaked Delta 3V soon. It was an enormous undertaking to try to improve upon the Delta protocol and, in the end, it isn't actually any better. But it is a little bit different (trading off a bit of toughness for a bit of strength) and it has a slightly higher hardness sweet spot because it does not get chippy at 62 like Delta 3V used to. Due to a finer carbide structure among other things. It will be a good fit for smaller knives where the ever so slightly enhanced edge stability is a good trade-off for the ever so slightly reduced impact toughness (notched impact, three-point bend toughness might be a little tougher).

This tweaked Delta 3V will be available on some field knives on our next sale. I'll put together a demonstration video.
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do you think you will replace original D3V with this new tweaked protocol sometime in the future?
and is this exclusive to CPK? (i remember there were 3 parties that delevoped and reserve the right to use D3V protocol)
 
ipal said:
do you think you will replace original D3V with this new tweaked protocol sometime in the future?
and is this exclusive to CPK? (i remember there were 3 parties that delevoped and reserve the right to use D3V protocol)
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We won't be replacing Delta 3V, but I will be offering this tweak on some patterns going forward.

It is proprietary to CPK
 
yoko said:
Nathan the Machinist Nathan the Machinist .....

How does the new dub D3V match up to cruwear?

Are you running similar hardness?
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It's basically just slightly harder Delta 3V. We've tweaked it where it has a little bit harder sweet spot which gives slightly better edge retention.

It is almost exactly the same as regular Delta 3V. This is not a significant change. Just a small tweak.
 
clinton1 said:
Also Nathan, will the different D3V be signified by a different marking on the blades to identify it? Or is that not needed? (Apologies if already been asked) 🙂
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Yeah, I moved the placement forward so I can tell at a glance and I also changed the symbol slightly.
 
gunslinger387 said:
Nathan, how is the HT affected if the blade gets too hot?
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How hot? Past a certain temp it'll lose it's temper.

Nathan the Machinist

Post in thread 'The "Ask Nathan a Question" Thread'

I'm not at liberty to say specifically what temperature we temper at, but you should not get it 500. And since there is some margin for error when coaters are doing these things, just because they say it cures at 450 doesn't mean it might not actually hit 550. To stay safe, I recommend processes below 400°.
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