Hardened update

[bry1975]

Chaps,

I've had the hardened DLC samples back am well impressed STRUGGLED to scrape the hardened
DLC samples with a very sharp draper point same as below, INFACT don't think I did!

If anyone wants a new buckle or clasp hardened preferable low value I'm willing to harden
them for a quid per part!

It's well impressive and thought yaselves should reap the benefits!

[malcysmith]

For clarification, is this DLC'ing any watch part matt black? or simply the hardening and no colour change?

Apologies for the stupid question in advance!

Malcolm

[bry1975]

Hardening is no colour change MUCH more durable than DLC or PVD.

I'll have a hardened Omega SMP clasp, Seiko SKX007 case and some standard watch clasps
hardened late December-early January that will be posted out to anyone interested.

Bry

Edited by bry1975 on Saturday 10th December 13:40

Edited by bry1975 on Saturday 10th December 14:54

[60]

Out of interest how are they hardened?

[bry1975]

Erm it's a case hardening process for Austenitic stainless steel and can take between 30hours and 60hours, you might not know but you can't harden Austenitic SS via the standard heat to cherry red and quench methods.

From what I gather the 316 SS parts are hardened at low temp so probably around 350celsius, the SS corrosion resistance is actually improved after the hardening it's a really handy hardening process.

I'll have ten standard clasps, one Omega SMP clasp and one Seiko SKX007 case as hardened samples that can be sent around to anyone interested.

Bry

Edited by bry1975 on Sunday 11th December 19:52

[60]

Ah ok so it's standard heat treatment then, the DLC bit confused me.

[bry1975]

YER standard hardening which can be combined with DLC or PVD coatings making for greater durability as no egg shell effect.

We did consider THICK Chrome Nitriding PVD, thick tungsten carbide CVD or other tricks like Ion implantation and even Boronising but so far very pleased with the Kolsterising/tegimenting process.

[60]

Lots of stuff there I've never heard of haha all I do is take ally from T6 to workable and back again lol

[bry1975]

Arr interesting isn't AL 6000 or 7000 series age hardened?

[sparkyhx]

bry1975 said:

YER standard hardening which can be combined with DLC or PVD coatings making for greater durability as no egg shell effect.

We did consider THICK Chrome Nitriding PVD, thick tungsten carbide CVD or other tricks like Ion implantation and even Boronising but so far very pleased with the Kolsterising/tegimenting process.

oh FFS............just when I think I know a bit about watches some clever b*stard comes along and spoils it

Now I'm going to have to become a metalurgist.

[bry1975]

LOL.