Sebenza lock bar heat treatment

[dunc5]

I read alot of threads about the heat treatment on Sebenza lock bars and wondered if you guys could clear up a couple of things .

When the bar is heat treated does it just harden the surface or all the way through the tip of the bar .

I've read three or four threads about lock bars sticking and gratting due to faulty/worn heat treatment , How common is this and is it something that is likely to happen when the knife gets older or more likely to show up when the knife is new .

I've noticed on mine ( see photo ) that there is a shiny worn part with a very slight groove on my lock bar . Is the heat treatment wearing off or is this just normal . Lock bar release is fine and lockup is just a little under 50% with zero play .

Am I being a little paranoid ?


Cheers

Dunc

 

[flipe8]

Well, that's what mine loks like and I was under the impression it's the heat-treatment chipping off. Mine going in very soon.

 

[JoHnYKwSt]

The heat treatment does not go all the way through the titanium, it is a thin layer that is hardened. That being said, that looks pretty normal to me. An email to CRK with that picture would give a definite answer. I would not worry too much about the lock wearing out and sticking as it gets older. I have a 10 year old sebenza that's been opened and closed possibly 10,000 times and its fine.

 

[krazichinaman]

Well, this is what my 1 month old Sebenza looked like. I called CRK about it and sent it in. They said that the heat treat was bad and they sanded it down to get the gouges out of it and then re-heat treated it. She said it was not suppose to have happened, but thye couldn't sand it completely down since it would mess with the tolerances of the knife. As far as the blade tang, she said the person that worked on it sanded it down to "smooth it out."

Either route, it still locks up good and it isnt sticky anymore! :thumbup:
Still bothers me that this happened after 1 month of little use on a new sebenza...but I guess time will tell.

BTW when I got it back, the gouges weren't all gone, but it was smoothed out a lot.

 

[AMRaider]

Awesome pictures. May I ask what camera you are using?

 

[krazichinaman]

Awesome pictures. May I ask what camera you are using?

My brother took them using a Nikkon D70 I believe.