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SJ can't polish S110V

Started by Sharpco, December 27, 2017, 05:00:20 AM

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Sharpco

I sharpened Spyderco Military CPM-S110V.

As you know, S110V has very high wear-resistance. But SG & SB stone ground it well.

Problem is SJ. SJ can't polish S110V.(But it can polish S30V)

I tried it for a long time and to push it harder.(not very hard)

But the result is this photo.

Ken S

Sharpco,

I suggest you contact support (support@tormek.se) with this question. Knives are really Stig's specialty In addition to his own extensive knowledge of knives, he knows many experienced knife people.

Ken

ps I would be curious to read his answer. Please post it.

kwakster

#2
To truly polish S110V steel you will need fine CBN or diamond, as no other abrasive is able to cut & shape the relatively large amount of vanadium carbides in the steel.

I use various diamond compounds on dedicated Paper Wheels for polishing work, and a while ago i did this Spyderco PM2 in S110V steel, freehand on Paper Wheels with successively 15, 6, 3, and 1 micron diamond compounds.
You can click 2 x on the pics for a bit more detail.









Close-ups using a USB microscope:




Sharpco

Quote from: kwakster on December 27, 2017, 10:36:49 AM
To truly polish S110V steel you will need fine CBN or diamond, as no other abrasive is able to cut & shape the relatively large amount of vanadium carbides in the steel.

I use various diamond compounds on dedicated Paper Wheels for polishing work, and a while ago i did this Spyderco PM2 in S110V steel, freehand on Paper Wheels with successively 15, 6, 3, and 1 micron diamond compounds.
You can click 2 x on the pics for a bit more detail.









Close-ups using a USB microscope:



Good job kwakster.

I think this is the limit of SJ stone too.

wootz

#4
Just wanted to take an occasion and thank Mr. KWAKSTER.
KWAKSTER is a unique freehand sharpening talent, and proficient in Tormek and paper wheels.
I've learned how to use paper wheels properly by his posts on an Australian forum.



thansen

Quote from: wootz on December 28, 2017, 08:26:57 AM
Just wanted to take an occasion and thank Mr. KWAKSTER.
KWAKSTER is a unique freehand sharpening talent, and proficient in Tormek and paper wheels.
I've learned how to use paper wheels properly by his posts on an Australian forum.

I would very much like to read those posts, do you have a link to this forum?

Thank you :-)

wootz

#6
https://www.australianbladeforums.com/vb4/sharpening/24087-paper-wheel-edges.htm

I remember spending several days just reading through KWAKSTER threads.

hm, the link does not work well -
at the www.australianbladeforums.com
go to General Blade Discussion >> Sharpening >> Show your Paper Wheel edges

kwakster

The pictures of the Spyderco PM2 in S110V steel in my earlier post seem to have vanished, and i can't replace them as i don't have them on my computer anymore.
However i do have pics from a second PM2 in the same steel, only without the USB shots.

BTW: these edges are done freehand on Paper Wheels with diamond compounds exclusively, so no Tormek involved.
The chest hair was made into a fuzzstick by holding it on the root end only.
You can click 2 x on each pic for a bit more detail.
















kwakster

Thx to a great tip from member CWBX34 the pics of the first PM2 in S110V are now visible again, and i've learned something new,  :D

cbwx34

Quote from: kwakster on May 15, 2018, 03:49:34 PM
Thx to a great tip from member CWBX34 the pics of the first PM2 in S110V are now visible again, and i've learned something new,  :D

Glad it worked! :D
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