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| How to sharpen carbide scraper? |
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| PekkaNF:
I have Sandvik (and similar) carbide insert scraper. I have been trying to find out how to sharpen them properly. I can find pretty good information about business end radius etc, but sharpening details evade my googlings. I knw that the diamond disc is used to shape it and in the end it needs to be honed, but any furher details are mixed. 1: Would normal diamond cup wheel of maybe 120 grit work on shaping? http://www.arceurotrade.co.uk/Catalogue/Diamond-Tools/Diamond-Grinding-Wheels/Diamond-Grinding-Wheels---45-Dish 2: Honing is bit more tricky. I don't have copper plate or such to make discs, but I have some cast iron I could charge it with diamond. What grit? What rpm for about 100 mm dia? Pekka |
| chipenter:
I use one of those diamon disks on a bench grinder , and for honing I use a 600 grit diamond sharpening stone http://www.toolstation.com/shop/p56163?table=no , leaves a good finish . |
| PekkaNF:
Thank you. I will buy one of those diamond cup wheels. I have some diamond hones, manual ones, have to try some. Honing is still mystery, I though I'll need something like this: Pekka |
| Pete.:
http://www.ebay.co.uk/itm/152210190653 These will make your life easy. Use the rough one for setting the radius and the fine one for honing an edge. |
| chipenter:
It's the same principal as a wood chisel , ground and then a higher angle for honing then polish the flat to loose ant burr , |
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