Thread: New Farid Japanese prototype

I'm really enjoying seeing this process- making, testing, remaking... thanks so much for sharing, Farid & Paul!

Originally Posted by BKratchmer

I'm really enjoying seeing this process- making, testing, remaking... thanks so much for sharing, Farid & Paul!

Update:
All blades are now heat-treated and slightly scaled down in size, I am having lots of fun with these experiments, all in the name of passion for creativity and to be able to offer a high quality razor.
thank you
Farid

Originally Posted by John Crowley

440C needs to be cryo hardened or it will be too soft to maintain a good edge for long.

That's just not true.

Originally Posted by Philadelph

That's just not true.

Can you guys expand on this please?

Thanks

Originally Posted by Philadelph

That's just not true.

This is what I was thinking also but my knowledge of metallurgy is sorely lacking.

Originally Posted by SiRed8

Can you guys expand on this please?

Thanks

The Search function is your friend. Mostly I don't want to re-type everything.

Try here: http://straightrazorpalace.com/forge...treatment.html

http://straightrazorpalace.com/razor...rth-doing.html

In brief: some steels (high alloy materials, chromium-moly alloys, not low alloy materials e.g. high carbon low other alloy stuff) will show a benefit from cryo treatments. If a low alloy steel is correctly treated, cryo is not necessary from a practical point of view.

Originally Posted by PapaBull

That's what one would think. But that's not really correct. I'll illustrate. Not a good illustration, but an illustration. What actually happens is that you hone at twice the angle on one side instead of half the angle on both sides. The actual angle (degree) of the bevel is the same for single or double bevel razors if the razors have a spine or honing contact point of the same thickness and the same distance from the edge of the blade.


Attachment 30445

In the Japanes style razor posted, it's an 8/8 with the hone contct at the halfway point on the one side of the razor. This means that at that point, it should have the spine thickness of a 4/8 razor, which would be somewhere around 1/8". If it does, it will have the same angle of bevel as a 4/8 standard hollow grind with a 1/8" thick spine.

Thank you. The illustration is perfect for me to understand.i am no longer one that thinks that.

Great looking razors!