Author Topic: SJ can't polish S110V  (Read 1056 times)

Offline SHARPCO

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SJ can't polish S110V
« on: December 27, 2017, 05:00:20 am »
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.

Online Ken S

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Re: SJ can't polish S110V
« Reply #1 on: December 27, 2017, 07:29:36 am »
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.

Offline kwakster

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Re: SJ can't polish S110V
« Reply #2 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:



« Last Edit: May 15, 2018, 03:47:17 pm by kwakster »

Offline SHARPCO

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Re: SJ can't polish S110V
« Reply #3 on: December 27, 2017, 02:00:10 pm »
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.

Offline wootz

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Re: SJ can't polish S110V
« Reply #4 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.


« Last Edit: December 28, 2017, 08:30:25 am by wootz »

Offline thansen

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Re: SJ can't polish S110V
« Reply #5 on: December 28, 2017, 10:27:04 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 :-)

Offline wootz

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Re: SJ can't polish S110V
« Reply #6 on: December 28, 2017, 10:44:08 am »
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
« Last Edit: December 28, 2017, 10:48:18 am by wootz »

Offline kwakster

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Re: SJ can't polish S110V
« Reply #7 on: May 15, 2018, 03:21:51 pm »
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.
















Offline kwakster

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Re: SJ can't polish S110V
« Reply #8 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

Offline cbwx34

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Re: SJ can't polish S110V
« Reply #9 on: May 15, 2018, 04:35:11 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