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Jmadams13
10-11-2012, 11:37 PM
I've had good results thinning my blue, white, and a few other if my carbon knives, but cants seem to get the hang of VG10. Should I use th same standard procedure, just starting at a lower grit, or maybe even a diamond stone, or is there a trick I am missi g here. I'm thinking its just because its harder, correct?

ThEoRy
10-11-2012, 11:46 PM
Nah, you're not thinning the core steel just the cladding. Just do the same thing. What knives are you thinning anyway.

Vertigo
10-11-2012, 11:51 PM
Start with a diamond plate if you can spare the diamonds, or a concrete block if you can't. VG-10 is usually between 59 and 62 HRC, so it's not particularly "hard" compared to white or blue carbon treated the same. It's just a colossal pain.

brainsausage
10-11-2012, 11:53 PM
I'm a noob in regards to sharpening, but VG is stainless, and in my limited experience so far- is very gummy and weird to sharpen in general. Quite unresponsive. The hardness has to do with who made the knife btw- there isn't a standard hardness in regards to the steel in general. Correct me if I'm wrong here somebody- but it has to do with the overall heat treatment process when forging the knife. There's VG-10 knifes that range between 56(low end probably) and 62-3 HRC. So far I've found that higher HRC steels are more responsive, and more enjoyable IMO to grind. But once again- I'm a noob. And I'm sure somebody else here can give you a little more insight.

Benuser
10-12-2012, 01:11 AM
The VG-10 wear resistance is not exceptional, and thinning it as monosteel is quite easy in fact. Other stainless may be gummy, especially soft cladding steel, VG-10 is not.
For thinning you may consider the use of sandpaper for steel with a linen backing, grit P120 to start with. Use a marker to make sure not to reach the very edge.
The reputation of being hard to sharpen has nothing to do with being particulary resistant, but rather with a very specific deburr problem - the burr won't get off, and has to be abraded.

stevenStefano
10-12-2012, 05:49 AM
I've thinned a few VG10 and it was fine, only thing was on a couple the cladding was very soft and the grit basically stuck to it so I had to refinish with sandpaper

Jmadams13
10-12-2012, 09:23 AM
Thanks guys. Gonna work on it before work today. The knife is the 8" chefs Ikea VG10 "Damascus." I actually love this knife. It was given to me by my well meaning mother for my birthday this year, as well as their 5" utility, 3" paring, and 8" bread. At first I was like thanks mom.... But after I used them for a while as beaters, I came to enjoy them, mainly the chefs and bread. It holds a nice toothy edge, gets nice and sharp and the f&f is pretty good. And being stainless its great as a service/line knife for me, and I don't mind lending it to the other guys if needed.

My only issue is it wedges like crazy on hard foods, and as its close to squash season, I want to resolve this before I get too frustrated. I know I will screw up the etching, but that's no issue, I'll just polish whee I loose it. So it seems the recommendation is to start with some 220 then work my way up to the stones, correct? Again, thanks a million

ThEoRy
10-12-2012, 10:26 AM
You can just re etch it when you are done. That's what I did on my 240mm Ironwood Tanaka. :D

Benuser
10-12-2012, 10:48 AM
When geometry is involved, go by little steps, and verify in between. Heavy thinning both sides may make wedging to get even worse. Start with removing shoulders and thinning right behind the edge, before going any further.

Jmadams13
10-12-2012, 11:56 AM
I thinned just behind the edge and worked on the shoulders. I have to break down a crap ton of butternuts tonight, so ill see how it feels. Thanks for the advise. And I gave me a reason to ride out to the hardware store to buy sandpaper, always fun

Benuser
10-12-2012, 12:06 PM
Please let us know!

Jmadams13
10-13-2012, 10:25 AM
Well, thinning just behind the edge helped a little on the squash last night, less wedging, but still an issue. Still might take it a little further. I still got frustrated on about squash #11, so I broke out my CCK "BBQ chopper" to finish up the rough breakdown.

How much further would you suggest I take it. I'll try to post pics after shift tonight.

stevenStefano
10-13-2012, 11:11 AM
Up to you I guess but if you feel you're gonna need to thin it a huge amount I'd maybe get a different knife

Benuser
10-13-2012, 11:12 AM
Please verify with a ruler that one side of the blade - in general the left one - is flat behind the bevel , and the other one is at least slightly convex. This is important because thinning has to be performed differently on both sides.
I look forward seeing the pix.

Benuser
10-13-2012, 11:26 AM
Up to you I guess but if you feel you're gonna need to thin it a huge amount I'd maybe get a different knife
Sure, but often a slight adjustment will solve the question, and no huge thinning is
necessary.

Jmadams13
10-13-2012, 03:36 PM
A different knife would solve the issue, but as this is only a 50$ knife, and it was a gift, I'm finding it good practice. I have two other VG10 knives that I would like to thin a little, this is good practice. And I used this ikea knife today on some harder foods like carrots, turnups, and sweet pots. It helped a lot, so even if its a little better, the effort was worth it

EdipisReks
10-13-2012, 08:45 PM
Please verify with a ruler that one side of the blade - in general the left one - is flat behind the bevel , and the other one is at least slightly convex. This is important because thinning has to be performed differently on both sides.
I look forward seeing the pix.

it really depends.

labor of love
10-13-2012, 10:15 PM
bieniek demonstrated great thinning technique in his recent post "yoshikane petty thinning job" which was with a clad knife. check it out.

keithsaltydog
10-15-2012, 09:06 PM
I have found 600 atoma plate thins shuns easy.For the most part VG-10 does not seem that hard to sharpen.

Your CCK BBQ cleaver is a good squash weapon.Good for alot of other cutting as well.