Cleaning CBN wheels

UKworkshop.co.uk

Help Support UKworkshop.co.uk:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
I've had a CBN wheel for over 10 years and never found the need to clean it. It shouldn't clog if you only sharpen hard steel (i.e. HSS).

If you mean the rubber belt cleaning blocks, I can't see it doing any harm but I'm wondering why it would be necessary.

My wheel is showing some signs of wear but I think it still has plenty of life left in it.
 
If you mean the rubber belt cleaning blocks...

Given that the post above your own states "one of Axminster’s aluminium oxide blocks", rubber is most unlikley.

If you do not know what item is being referred to, it would be the work of a moment to locate it on Axminster's website, since not only is the description given, but also the source/seller.

https://www.axminstertools.com/cleaning-stone-for-cbn-wheels-diamond-stone-400g-104143

---

The time of application would depend on the state of the wheel.

How much time does it take to sharpen a chisel? It depends if you are giving it a touch up on a regualr basis or if it has a notch in it from hitting a nail. And so it is with the CBN wheel.

There are some tips on the process here:

https://info.eaglesuperabrasives.com/blog/dressing-and-truing-a-grinding-wheel

but note that no absolute time is given, and it would be a mistake to start from a position that such a time should be given (how long does it take to roast a turkey?).
 
I've been using CBN wheels for 10 years and never once in that time needed to clean my (two) CBN wheels.

The metal which is likely to load up a CBN wheel is aluminium - that is, something softer than hardened steel. I find it interesting, therefore, that the Axminster blocks are "Aluminium oxide". I view this as a solution looking for a problem.

If you do get some debris on the wheel, simply grind a blade. That will clean it.

Regards from Perth

Derek
 
Soft metals such as aluminium, brass, copper etc. shouldn't be ground on a bench grinder so if that rule is observed, you wouldn't have a need to clean the wheel...

CBN wheels shouldn't be "dressed" or trued because there is only a thin layer of grit. Once that's gone, you just have a metal wheel!

Using any sort of abrasive on the CBN wheel will shorten its life unneccessarily. I don't see why anyone would need do it.
 
Hi,guys
Thanks for all the comments, but I am a bit puzzled by the contradictions in the advice.
I have never used my CBN wheels with anything other than HSS tools, so that shouldn’t cause any problems with them. I always believed that these wheels needed little, if any, maintenance, but I have noticed a change in the appearance of them over the last couple of months. I heard about Axminsters CBN cleaner and bought one. I didn’t use it when it came,as its appearance looked a bit dubious., hence my question on the forum.
The general opinion on here is that cleaning is not necessary. However, ChaiLatte’s contribution suggested looking at a video produced by Eagles Super Abrasives. I’ve watched that and it appears to recommend dressing diamond wheels. It’s quite short. The kit used initially is not something I’ve ever seen before, being some sort of rotating wheel. Having used that, the operative restarts the wheel, gets it up to top speed, switches it off, and then applies something like the Axminster block to the wheel and holds it there until the wheel is brought to a stop. There is no explanation as to what the block is made of. There are before and after pictures of the wheel purporting to show a renewal or exposure of the cutting edges of the diamonds embedded in the wheel surface. Given that diamond is 1 on the Mohs Scale, it can’t be that the stick sharpens the diamond bits, so it must be that in some way it cleans out stuff from between them. But who knows?
I‘ve also looked at YouTube in the search for an answer to my question. There are a number of sites that recommend dressing these wheels, but often they involve putting stuff on them that I wouldn’t want to do, a bit like Mindthatwhatouch’s suggestion of using brake cleaner fluid.
So, all in all, I’m not much further on with this problem. I bought the wheels from Vicmarc, so I will try to get their opinion about it.
I’ll report back if I get anything like a definitive answer.
D.
 
Diamonds are not CBN. The Axi cleaner is supposed to be OK for CBN and diamond but I'm always wary of comments that conflate the two.
FWIW, I have the Axi cleaner and have used it twice on CBN. Not sure it did much other than make a dusty mess!
Derek Cohen and Paul Hannaby both have enormous experience so I think I'd be inclined to take their advice.
 
Last edited:
Diamonds are not CBN. The Axi cleaner is supposed to be OK for CBN and diamond but I'm always wary of comments that conflate the two.
FWIW, I have the Axi cleaner and have used it twice on CBN. Not sure it did much other than make a dusty mess!
Derek Cohen and Paul Hannaby both have enormous experience so I think I'd be inclined to take their advice.
Thanks for your input, Duncan. I very much appreciate you taking the trouble to help me.
D.
 

Latest posts

Back
Top