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Laser hardening

Posted: Tue Apr 16, 2024 10:47 pm
by Fireman
[media] [/media]

Is this the future of cheap heat treatment? Laser and quench?

Re: Laser hardening

Posted: Thu Apr 18, 2024 12:03 am
by zhyla
Well… heat treatment isn’t necessarily expensive at volume. You can put hundreds of blades in a batch in an oven or… laser them one at a time?

Re: Laser hardening

Posted: Fri Apr 19, 2024 3:02 pm
by Fireman
Maybe it can be a way for micro brands to do heat treat on demand

Re: Laser hardening

Posted: Fri Apr 19, 2024 3:46 pm
by Ngati Pom
That is interesting, it looks as if it’s surface hardening rather than full thickness?
It may have a place for lock faces and high wear areas on handles etc.

Re: Laser hardening

Posted: Fri Apr 19, 2024 5:17 pm
by Steveng
Ngati Pom wrote:
Fri Apr 19, 2024 3:46 pm
That is interesting, it looks as if it’s surface hardening rather than full thickness?
It may have a place for lock faces and high wear areas on handles etc.
Or engine cylinders, where you want maximum hardness on the internal wear area, but retain malleability in the structure

Re: Laser hardening

Posted: Fri Apr 19, 2024 5:44 pm
by zhyla
Fireman wrote:
Fri Apr 19, 2024 3:02 pm
Maybe it can be a way for micro brands to do heat treat on demand
It's just not much of a problem to heat treat steel. You buy a heat treat oven and do the right temperature cycle. Quenching can be interesting so maybe if you figure out laser quenching that will help.

Re: Laser hardening

Posted: Fri Apr 19, 2024 7:07 pm
by Bolster
Steveng wrote:
Fri Apr 19, 2024 5:17 pm
Or engine cylinders, where you want maximum hardness on the internal wear area, but retain malleability in the structure

Wasn't this the idea regarding samurai swords? What if we could get knife blades that were differentially hardened...harder at the edge and softer (tougher) at the spine?

Re: Laser hardening

Posted: Fri Apr 19, 2024 10:44 pm
by RustyIron
Ngati Pom wrote:
Fri Apr 19, 2024 3:46 pm
That is interesting, it looks as if it’s surface hardening rather than full thickness?

Yes! There are many applications where this is an excellent solution.