Sharpening razors — old wives tales?

from what I read the "grow" was a bad thing. I strope before every shave. Seems to work out very well for me.
 
GarageBoy said:
With a straight razor, you're basically shaving with a burr
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I'm not sure if I agree or disagree with you. Depends on what you mean. My edge is always super polished, but it's as thin as a bur. And if you're not carefull you get what I call a tin foil edge that's not good for cutting butter.
 
It's not cutting with a burr. I had a burr on one of my straights, and after the first cut, it was torture, I had to switch to a different blade, it was so painful.
 
mete said:
It's interesting that people quote a paper written over 100 years ago. We have today electron microscopes that are capable of magnifications of 1 million times !!! We can see things today not even guessed about 100 years ago ! My grandfather used a straight razor and did have a set of razors . But that's in the old days. THIS metallurgist uses a disposable razor and I have seen an interesting progression of technology in my lifetime.Carbon steel - stainless steel - platinum plated - teflon coated - one blade - two blades - three blades -four blades - lubricated blades .I might have forgotten a few. I'd like to see time/lapse video of a burr straightening out by itself ! Let's not have any more speculation ,non-scientific drivel and do a proper study.
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Man, don't take this to the sillyness!
Obviously a burr that usually forms in a metal blade will never straighten up to the spine angle by itself.

Altough if you have a microscope that will have enough power to watch the crystallin structures of the TIP of the burr (noticing the scale here? burr/tip of the burr - I'm talking about the tip (and the tip is the last molecules of the blade) [better repeat, so nobody missread again] you will see them straighting up (the crystallin strutures).


this can help you in that propper study that someone need:
(and that's only dislocations intro)

http://www.doitpoms.ac.uk/tlplib/dislocations/printall.php
 
darklight said:
Man, don't take this to the sillyness!
Obviously a burr that usually forms in a metal blade will never straighten up to the spine angle by itself.

Altough if you have a microscope that will have enough power to watch the crystallin structures of the TIP of the burr (noticing the scale here? burr/tip of the burr - I'm talking about the tip (and the tip is the last molecules of the blade) [better repeat, so nobody missread again] you will see them straighting up (the crystallin strutures).
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You have any evidence that this happens in the non-isotropic steels used in razor blades? I've never seen any.
 
JackBauer24 said:
from what I read the "grow" was a bad thing. I strope before every shave. Seems to work out very well for me.
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I think what DOVO are trying to say is that one should not strop directly after shaving, when the tip of the edge has been stressed and is more easily damaged (no longer elastic). That's why it's better to strop before shaving (more sensible too of course), when the metal has had time to regain elasticity (rested for 24 hrs).
 
Darklight ,please don't talk about molecules in metal - it's atoms , crystals and grains. Cambridge U is a wonderfull source of information. Check the video links on that tutorial and see dislocations move !! That's something we only dreamed about when I was in school !
 
Mete,

Way back when I was in school, we learned about covalent and ionic (or electro-valent) bonding.

When was "metallic" bonding "discovered?":confused: I've read a little about it in respect to computer electronics, but that was always in conjunction with pure copper conductors.

If you have time, and the inclination,:) could you give us a "thumbnail" sketch of how this works, especially in respect to alloys (metallic compounds?) rather than pure metals?

Thanks,

Ben
 
dscheidt said:
You have any evidence that this happens in the non-isotropic steels used in razor blades? I've never seen any.
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No I don't, nor I reaserched about it these particular steel in these particular blades like I said in earlier post. But guys around here were starting to generalize, and I was just trying to show the other side of the box.. but seems that the intention was lost in the way when people started to mix this paricular case with the whole metals.. :grumpy:
 
mete said:
Darklight ,please don't talk about molecules in metal - it's atoms , crystals and grains. Cambridge U is a wonderfull source of information. Check the video links on that tutorial and see dislocations move !! That's something we only dreamed about when I was in school !
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Well, you stand correct, my mistake about changing the crystals to name it molecules in the tip.



well, let's do it the other way!
You just show proof that this effect DOESN'T happen.
 
darklight said:
Well, you stand correct, my mistake about changing the crystals to name it molecules in the tip.



well, let's do it the other way!
You just show proof that this effect DOESN'T happen.
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I'm sorry, but that's not how science is done. The onus is on the party that's making a claim that's contrary to expectation.
 
what a nice excuse... that problem is,

In this case you are seeing the stuff the other way around, because science is already done here. Metal has elastic properties, and that apllies to general metals. You can find anything about it anywhere, even wikipedia has stuff written about it, so you can figure that other technical books have a lot more stuff about it. ( eg. http://en.wikipedia.org/wiki/Young's_modulus ).

Also you just need to read the link that I provided before... and bother reading!


So in this case, it is you that need to proof that it doesn't happen here in this particular case...

The funny thing about all this, is that I lost time making my point that goes along with science, I wouldn't even need to argue about it since it has already been written about it. But people here argued the oposite without showing evidence, and why would't this apply.

Even the less, thought that we were having an intelligent discussion here, and learn about it, or the point is only to deny just for denying? I don't want to proof nothing, but If I'm wrong I would like to see some proof about it so even myself could learn about it. I just showed some evidence about the the physical property exists, at least in atomic scale... why not bother to show me that I'm wrong? we are not making a phD thesis here about this subject do we?
 
I've been straight razor shaving for almost a year now. I fell into the notion that I "needed" more than one razor because they have to "rest" between uses.
I belong to several forums and I think I have the answer to your question.
It can be found in the opening paragraph in the attached link.
The owner and others of this web site, have done several tests to determine if straights need to "rest" in between uses. The answer is "no" they don't.
Now I have 6 extra straights that I intend to sell on E-Bay now.
Actually, I intend on selling all of them and buying one really nice one.
Probably a Theirs Issard.

http://www.straightrazorplace.com/forums/showthread.php?t=16555
 
All of mine are DOVO's, and I'd like to try a TI. I have several high carbon and one stainless, and the stainless holds it edge and cuts as well as the others, which I was somewhat surprised to see. Now I wonder what kind of stainless it is....
 
My first straight was a DOVO and it was a piece of crap! Sounds like I might have just got a bummer blade. Unfortunately I didn't learn to shave with it for almost 7 years later!
So I really never knew that it was junk. The blade was warped pretty bad. You'd have to grind off a TON to get to some good steel. I really want to get a Theirs Issard because they have that Sheffield Silver Steel and I understand that it is awesome!
 
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