| Steve K |
| (Honored Veteran) |
| 06/28/12 06:23 PM |
New grinding wheel
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I'm thinking of springing for a new 8" grinding wheel. I would like to upgrade to a ceramic wheel but don't know much about them. Is the wheel from woodturners catalog a good value? Norton SG Wheel
| Greg Jones |
| (Member) |
| 06/28/12 06:54 PM |
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Re: New grinding wheel
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I don't have any experience with the Norton SG wheels as I have used the Norton 3X Super Cool wheels most recently. However, have you looked at the CBN wheels from D-Way Tools? They are pricy, even compared to a premium wheel like the Norton SG. However, they look almost too good to be true. I'm going to try one-it's just a matter of waiting until one of my Norton wheels wears out, or going ahead and getting one now.
| n7bsn |
| (Member) |
| 06/28/12 07:40 PM |
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Re: New grinding wheel
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First I should note I know Dave (D-Way) well.
Second, these wheels out perform any Norton wheel, period.
They do take a break-in period to reach optimal performance.
That being said, you need a conventional wheel, in addition. The CBN wheels work very well for sharpening, but for radical reshaping of a tool, I would use a conventional wheel.
| Bob Bergstrom |
| (Member) |
| 06/28/12 10:29 PM |
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Re: New grinding wheel
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Sg wheel is half the cost of a CBN, but doesn't even come close to the performance of the CBN. Perfectly balanced, no dust, 1 1/2" wide and cuts metal like a hot knife through butter. Watch the videos on D-Way Tools
| gcrimmins |
| (Member) |
| 06/28/12 10:48 PM |
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Re: New grinding wheel
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A friend recently bought one of the D-Way wheels and it's pretty nice. It's well balanced, doesn't get smaller or change shape as it's used, doesn't produce silica dust, and should last roughly forever. If it's out of your price range I'd ask MichaelMouse about the wheels he uses.
--Geoff
| MichaelMouse |
| (Member) |
| 06/29/12 05:39 AM |
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Re: New grinding wheel
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I've posted a few times. The SiC wheels from http://woodworker.com/6x34x1-blue-alox-3...mp;searchmode=2 do exactly what the writeup says - minimum metal removal. No longer as cheap as what they were, but still reasonable compared to "gee whiz" abrasives.
Why would you want something "aggressive" unless you were shaping, not sharpening, anyway?
| Wildwood |
| (Member) |
| 06/29/12 06:50 AM |
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Re: New grinding wheel
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Article by Jerry Glaser on SG wheels.
http://www.woodturners.org/tech_tips/glasser-sharpen.pdf
I found K wheels by Camel (GCW) or Norton will handle anything you throw at them with less cost. Camel wheels less expensive than Norton wheels. Shopping for sales or buying locally will save money too.
http://www.wttool.com/index/page/categor...ce=SiteChampion
At one time had more manufacturers putting out good quality friable wheels at reasonable prices from turning vendors now can only buy Camel and Norton.
| sjewell |
| (Member) |
| 06/29/12 08:13 AM |
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Re: New grinding wheel
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What grit do you use on the CBN?
| n7bsn |
| (Member) |
| 06/29/12 12:26 PM |
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Re: New grinding wheel
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sjewell said:
What grit do you use on the CBN?
180 would be my recommendation
| measure once cut remeasure |
| (Member) |
| 06/29/12 10:01 PM |
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Re: New grinding wheel
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Hi MM
If you were going to pick two grinding wheels for sharpening everything from hand chisels to plane blades to turning chisels, what would you choose.
My initail thoughts were the the alum oxide in a 36 or 46 for rougher removal and 80 or 120 for sharpening.
It sounds as if the blue alum.oxide run the coolest and might be the better choice in a course grit. Then maybe go with a 80 or 100 in a green sic carbide for sharpening.
Any thoughts ?
Price wise it looks like wholesale tool is selling the same camel / cgw wheels for less than half the price of woodworkers supply.
my .02
Karl
| MichaelMouse |
| (Member) |
| 06/30/12 06:50 AM |
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Re: New grinding wheel
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Glaser sells a "name" gouge, which is why his article deals mostly with rough stock removal. I'm hoping you have nothing similar in mind. The gamma alumina form (cubic) is the expensive stuff. Oddly, wheels are marketed as superior for the task because the cubes fracture easily. Which makes smaller mesh grit, if logic is applied rather than advertising. The hexagonal crystal form also fractures and produces sharp edges. I'm not able to determine which fractures more readily.
So I opt for the good glue for wear away rather than the form of the crystal for breakaway resistance. I use 24 grit on the brush hog and the mower, but would never put something that coarse on a grinder. I'm 60/100 in my setup, and the 60, like the 60 grit disks I got with my sanding sets, may well last forever. You want to reshape, use a sander.
My brief fling - brief because they fly away so fast - with the "friable wheels ended after the first pair. Or the first one, I guess, because the 60 is still hanging around for reasons mentioned above.
My choice. The Israeli SiC wheels have been good performers throughout. I do not use a jig, rather merely freshen the existing by laying heel to toe on the existing bevel, so I don't dress the wheel with a stick, but the tools.
| electraglideclassic |
| (Member) |
| 06/30/12 10:08 AM |
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Re: New grinding wheel
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Karl, did you notice that woodworkers supply has the 8 x 1 x 120grit wheels for 14 bucks? Why that one wheel is 25% the cost of the others, I'm not sure, but ordered a couple anyway. Working in machine shop for 36 years, I just like that type wheel for grinding hardened steel. We were taught to use the green wheels for carbide, but maybe they may work okay on HSS. Never done it, myself.
| Wildwood |
| (Member) |
| 06/30/12 02:24 PM |
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Re: New grinding wheel
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Nice to know information each manufacturer’s wheel will differ.
http://www.cgwheels.com/Media/Doc/cataloges/Grade%20marking.pdf
http://www.georgiagrindingwheel.com/grindingwheels_basics.htm
Click on “Abrasive training pretty good read.
http://pacificgrindingwheel.com/index.php?option=com_content&task=view&id=181&Itemid=151
I like 46 grit wheels for re-shaping or repairing a bevel angle. Like an 80 grit wheels for re-sharpening tools. Believe get more out of a K-Grade hardness wheel than others. Colors, structure or bond pretty much meaningless to me, will vary greatly by manufacturer. Used CGW wheels made in Israel, Georgia, Pacific and Norton wheels all will sharpen your tools so price plus shipping gets my attention.
| Steve K |
| (Honored Veteran) |
| 06/30/12 03:58 PM |
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Re: New grinding wheel
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Thanks for all of the replies, the forums are a great resource!
| robo hippy |
| (Member) |
| 07/03/12 12:12 PM |
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Re: New grinding wheel
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The CBN wheels run so cool that I can sharpen or touch up my bench chisels with them, no problem. They will, by far outlast any comparable $ amount of any other wheel out there. Diamond is for carbide, CBN is for steel. I have an 80 grit CBN wheel that removes steel faster than the 40 grit wheel that came with my Baldor grinder. If you need to do serious reshaping, take it to the local saw shop for them to put on one of their belt sanders, other wise, the 80 grit CBN wheel is fine.
robo hippy
| elderbarryl |
| (Member) |
| 07/03/12 12:33 PM |
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Re: New grinding wheel
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That $14 price is a misprint, already checked it out. Think the actual price is $49+ in the new catalog according to John when I called. Sorry!