Rockwell tested my manix, how can this be?
- Michael Cook
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Rockwell tested my manix, how can this be?
:spyder: Well, my wife took in my manix to work (she's a setup in a Q1 rated factory) and rockwell tested it on the big free standing rockwell hardness tester. Well, all I can say is she had the opposite of Simona's experience! Her normal various parts came in at their usual hardness of 58-64 but the manix came in at 81.6 Rc! :eek: I reckon' the diamond tip may have hit a tiny bit of superhard carbide and given the higher hardness number :confused: ? Otherwise this things hard like glass! :eek: She tested it on the ricasso. :spyder:
More of what does not work will not work. Robin Cooper, Rokudan; Aikikai.
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There is great power in the profound observation of the obvious. John Stone, Rokudan; Aikikai
- Michael Cook
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amature science!
:spyder: Tomorrow she's taking in a Chinook II and a delica 3, we'll see what happens! :cool: :spyder:
More of what does not work will not work. Robin Cooper, Rokudan; Aikikai.
There is great power in the profound observation of the obvious. John Stone, Rokudan; Aikikai
There is great power in the profound observation of the obvious. John Stone, Rokudan; Aikikai
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This is most interesting!!!! I can't wait to see about the other knives that you are sending!!!
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- smcfalls13
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Holy crap, that's a substantial difference.
Keep us informed as to how the others fare, this is kinda unusual. I would assume it's a mistake in the read, or some kind of fluke. At that high of a hardness, the Manix blade would shatter when it hits a staple in cardboard. :eek:
Keep us informed as to how the others fare, this is kinda unusual. I would assume it's a mistake in the read, or some kind of fluke. At that high of a hardness, the Manix blade would shatter when it hits a staple in cardboard. :eek:
:spyder: Scott :spyder:
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- severedthumbs
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Normally I think they test in more than one spot just for such an occurance. I know when I get stainless liners back from Paul Bos there are at least three Rockwell test divets on each liner and sometimes as many as five.
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RC Tests
Yes you might have hit a pocket of Vanadium carbide. The riccaso is a small area and is difficult to test with blocking on the anvil of the RC tester. I usually do three tests even if the first comes back in parameters it might be an anomaly. I always inspect the marks post test; they should be consistant with the reading. A RC reading in the 80 leaves an almost impreceptable mark. Good luck in your evaluations...Take Care...Ed
That can't be right. Are you sure she didn't accidentally take one of your "ceramic" blade Boker knives instead of the Manix?
http://www.premiumknives.com/ShopSite/B ... nives.html
Unless the rumor about Spyderco making a super duper ZDP-189 blade Manix is really true and you accidentally got a test model.
http://www.premiumknives.com/ShopSite/B ... nives.html
Unless the rumor about Spyderco making a super duper ZDP-189 blade Manix is really true and you accidentally got a test model.
- Joyce Laituri
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Rc 81????????
Sorry I do not want to be rude; but most likely, this is measurement error. Rc of core of harden steel usually in upper sixties max., carbides are in mid seventies. According to hardness charts, Rc goes up to 80.
Most likely, it was used different from C scale or penetrator was damaged.
There is good chance that it was Ra scale Ra81.2 is correspond to Rc60 and this is where Manix should be. The only difference between A and C scales is weight settings. possible that somebody who used tester before change weight from 150 kg to 60.
R
Most likely, it was used different from C scale or penetrator was damaged.
There is good chance that it was Ra scale Ra81.2 is correspond to Rc60 and this is where Manix should be. The only difference between A and C scales is weight settings. possible that somebody who used tester before change weight from 150 kg to 60.
R
- Michael Cook
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:spyder: It was a measurement error, the factory uses the ra scale indeed and not Rc the delica and native came in at 75.5 and 97.9 respectively so I guess all is well. :o :spyder:
More of what does not work will not work. Robin Cooper, Rokudan; Aikikai.
There is great power in the profound observation of the obvious. John Stone, Rokudan; Aikikai
There is great power in the profound observation of the obvious. John Stone, Rokudan; Aikikai
- smcfalls13
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- Michael Cook
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Now you got me. Ra 75.5 is 49.5 Rc. You do not want a knife with 49.5 Rc.Michael Cook wrote: :spyder: It was a measurement error, the factory uses the ra scale indeed and not Rc the delica and native came in at 75.5 and 97.9 respectively so I guess all is well. :o :spyder:
97.9 Ra does not exist. Ra 92 is a max.
Send your knives to me I will check hardness. I will not do it on mine, I would hate marks from testing
- smcfalls13
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- Michael Cook
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:spyder: Well it seems that the knives don't fit well in the testing machine so rather than continuing to put marks all over my knives I'll just call it a failed experiment. :o :spyder:
More of what does not work will not work. Robin Cooper, Rokudan; Aikikai.
There is great power in the profound observation of the obvious. John Stone, Rokudan; Aikikai
There is great power in the profound observation of the obvious. John Stone, Rokudan; Aikikai
- Lur Kingman
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I am sure the MANix benefits from a few character scratches... :)Michael Cook wrote: :spyder: Well it seems that the knives don't fit well in the testing machine so rather than continuing to put marks all over my knives I'll just call it a failed experiment. :o :spyder:
Everyone should have an iDelica. :spyder: