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Author Topic: Got my Dragonfly in H-1!!!!!  (Read 567 times)

Offline Heinz Doofenshmirtz

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Re: Got my Dragonfly in H-1!!!!!
« Reply #15 on: October 11, 2012, 05:01:16 AM »
You can probably exchange it for another one if you want.  Sal reads bladeforums, and I've seen him make posts telling people to send him the knives they have that have problems, and that he'll send them a replacement.

I can also show you how to regrind the edge if you like.

H1 is not a steel that you really want to be regrinding at home.


why not?

H1 is a work hardening steel.  Regrinding will harden the blade as you go along, make it very difficult to keep consistent lines from side to side.  Close to impossible, actually.  Heat is also an issue.

This is why Spyderco does not sell any H1 knives with flat grinds, they're all hollow ground.  Flat grinding does each side separately, hollow grinding does both sides at the same time.
If done by hand on a diamond stone, heat shouldn't be an issue.  Also, I thought work hardening only takes place if the metal is put under enough stress to fracture the internal crystalline structure, making the crystals smaller, and thus the metal harder.

I freely admit I don't really know much of anything about H1 except that it's not supposed to rust at all, but I was also under the impression that it's a relatively soft steel compared to the other super steels that are common in high end folders, like VG10.

So in theory, at least, shouldn't reprofiling the edge by hand on a diamond stone still work?

Offline powerring

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Re: Got my Dragonfly in H-1!!!!!
« Reply #16 on: October 11, 2012, 05:13:34 AM »
Nice knife, Cap.  I hope you can get the edge addressed.

I don't have a Dragonfly 2 in H-1 but I do have one in ZDP-189 and I love it.  I also have a serrated Ladybug 3 in H-1 that's a daily carry knife.  I got the H-1 in serrated precisely because it's work hardened and apparently the serration makes it hold the edge much longer than the plain edge (68rc at the edge).  Sal said it would stay sharper in serrated longer than any other steel they tested, even ZDP and S90V.     

 

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