UPDATE - Titanium Military Models with Reeve Integral Locks (R.I.L.)

THG said:
I haven't seen any of these posts myself.
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Well, I've even made posts myself in some of the threads.
My two Emerson CQC-12's wore across the tang of the blade in no time flat. Went from 60-70% engagement to 90% or more in a matter of weeks.
One of my SmF's has slight vertical wiggle due to the lock bar now engaging in the ramped (radically ramped/curved) part of the tang. Due to wear of the lock-bar, it can slip to a flatter area. It is perfectly safe and will not disengage, but it wore itself into this condition due to the softness of titanium relative to steel.
Wear leads to wiggliness eventually.
THAT'S the issue the steel insert addresses.
 
stabman said:
Read more posts around the forums; they do.
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stabman said:
Well, I've even made posts myself in some of the threads.
My two Emerson CQC-12's wore across the tang of the blade in no time flat. Went from 60-70% engagement to 90% or more in a matter of weeks.
One of my SmF's has slight vertical wiggle due to the lock bar now engaging in the ramped (radically ramped/curved) part of the tang. Due to wear of the lock-bar, it can slip to a flatter area. It is perfectly safe and will not disengage, but it wore itself into this condition due to the softness of titanium relative to steel.
Wear leads to wiggliness eventually.
THAT'S the issue the steel insert addresses.
Click to expand...
Strider problems don't count and emersons are liner locks... Sorry to disagree but this shouldn't be a problem with a properly machined frame lock !! And bTW titanium has a much higher wear resistance than steel.
 
tazkristi said:
Spyderco’s Titanium Military Model is out and smoking hot. Spyderco goes a bit further in insuring our knives are long-lasting and durable. Titanium being a soft alloy presents a challenge when making hard, strong locks because it’s soft and eventually wears. Our titanium model knives with R.I.L locking mechanisms will soon feature a new small stainless steel insert attached to the lock’s liner. The fingernail-sized addition is machined, then nested, into the titanium on both ends then held in place by three locating posts and two screws. Stainless steel being harder than titanium extends the lock’s life span by augmenting the lock-tang interface for extended smooth action and longer lock-life.
.
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ok.

softrockrenegade said:
And bTW titanium has a much higher wear resistance than steel.
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I'm confused.:confused:
 
http://www.azom.com/Details.asp?ArticleID=1219
The surfaces of titanium and of all commercially produced alloys of titanium have relatively poor wear resistance. In particular, titanium surfaces in contact with each other or with other metals readily gall under conditions of sliding contact or fretting. Even with light loading and little relative movement, complete seizure of surfaces can occur. This situation is caused by adhesive wear in which microscopic asperities on the metal surfaces come into contact as a result of relative sliding and they tend to weld together forming a bond at the junction which can have a rupture strength greater than the strength of the underlying metal. Fracture then takes place at one of the asperities causing metal to be transferred from one surface to the other. The debris so formed gives rise to the accelerated wear that occurs with titanium.
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That 'mashing and denting' causes flaking and transfer of titanium to the mated surface in sliding contact. Look at pin on disk tests, titanium does not have a high wear resistance. 6Al4V is similar to 304 stainless in one study, and 304 does not harden.
 
softrockrenegade said:
Strider problems don't count and emersons are liner locks... Sorry to disagree but this shouldn't be a problem with a properly machined frame lock !! And bTW titanium has a much higher wear resistance than steel.
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Wow, you don't know what you're talking about.
Strider issues count when we're talking FRAME-LOCKS.
The CQC-12 is a FRAME-LOCK. Frame-lock, NOT liner. FRAME.
Titanium does not have higher wear resistance either; you have that wrong as well.
Wrong, wrong, wrong. Three times wrong.
 
stabman said:
Wow, you don't know what you're talking about.
Strider issues count when we're talking FRAME-LOCKS.
The CQC-12 is a FRAME-LOCK. Frame-lock, NOT liner. FRAME.
Titanium does not have higher wear resistance either; you have that wrong as well.
Wrong, wrong, wrong. Three times wrong.
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Quoted for truth.
 
Ok guys calm down I had read that here about the wear resistance and my mistake on the Emerson ! I guess I'm wrong wrong wrong :D
 
I have the Ti Mi, used to have both a Sebenza and an Emerson HD7. No offense to Emerson but the HD7's titanium frame lock was crap. By only turning the pivot pin screw 1/8 of a rotation I could adjust engagement from 20% to 90%+. The Sebenza was wonderful, but was only a long term loaner from a good friend. He had had it and used it for years. It was still rock solid and smooth. While my Ti Mi is not as smooth as the Sebenza it appears to be working fine after months of exclusive use (before the EX01 and Para2 came out) and continues to be used atleast once a week. Considering the size of my EDC rotation, I don't think I'll be wearing my Ti Mi out anytime soon.
 
We need a "roller-lock" folder. There would be no lock wear. I'm working on one. :)
 
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