Swarf clearing question

[Hafro]

Hello!

I was wondering if anyone has experience with clearing swarf from diamond plates. I have a worksharp 3000 that I have been using the DMT magna disks on. I had a bunch of old chisels lying around and went to town initializing them the other day and I think I might have missed a coating or something on one or more of the chisels. I’ve just been using a gum eraser to clear out some of the buildup like I do with my spindle sander but the performance of the diamond disk has decreased dramatically. Does anyone have any tricks for bringing them back to life? I think I read something somewhere about using a dish brush and Ajax but I figured maybe someone here would be in the know and give me a better answer.

Thanks!

 

[cmandp]

Diamond abrasives shouldn't be used on steel. Grinding steel breaks down the bond between the diamond abrasive and the wheel plus the carbon in the steel attacks the carbon in the diamond. The carbon from the wheel bonds with carbon in the steel and away it goes with the swarf.

I don't understand why there are so many diamond grinding tools advertised and sold as being able to cut steel. It specifically not down in the machining world for the reasons above.

 

[RTM]

Also, much concern in the sharpening world about diamond wheels cutting really good at first, then slowing down. The slowed down is the correct speed, they only cut fast when new.

Read here

https://support.wickededgeusa.com/portal/en/kb/articles/breaking-in-diamond-sharpening-stones

Cleaning at the bottom here

DMT® and Diamond Stone FAQ

Revitalize your knife's edge with DMT Diamond Stones! Crafted with monocrystalline diamonds, these stones offer unparalleled durability and performance. Choose between the continuous surface of the Dia-Sharp line, perfect for maintaining flatness, or the interrupted surface of the Duo-Sharp...

www.sharpeningsupplies.com

 

[Hafro]

Also, much concern in the sharpening world about diamond wheels cutting really good at first, then slowing down. The slowed down is the correct speed, they only cut fast when new.

Read here

https://support.wickededgeusa.com/portal/en/kb/articles/breaking-in-diamond-sharpening-stones

Cleaning at the bottom here

DMT® and Diamond Stone FAQ

Revitalize your knife's edge with DMT Diamond Stones! Crafted with monocrystalline diamonds, these stones offer unparalleled durability and performance. Choose between the continuous surface of the Dia-Sharp line, perfect for maintaining flatness, or the interrupted surface of the Duo-Sharp...

www.sharpeningsupplies.com

Thanks, I’ll give that a try tomorrow, I appreciate it!

 

[CallumRD1]

Diamond abrasives shouldn't be used on steel. Grinding steel breaks down the bond between the diamond abrasive and the wheel plus the carbon in the steel attacks the carbon in the diamond. The carbon from the wheel bonds with carbon in the steel and away it goes with the swarf.

I don't understand why there are so many diamond grinding tools advertised and sold as being able to cut steel. It specifically not down in the machining world for the reasons above.

This is absolutely true for powered grinding with diamond abrasives. But for hand work at low temperatures (usually with water or oil) it's not an issue. The reason diamond is commonly used in sharpening stones is that many high-performance knife steels have large quantities of carbides (vanadium carbide, tungsten carbide, chromium carbide, etc.) that are much harder than most common abrasives like aluminum oxide. Therefore you need a sufficiently hard abrasive to cut it efficiently, hence the use of diamond stones.