Are you speaking of dressing a diamond wheel true? There's a few threads, including a recent one on the process. It also matters whether you're using a plated wheel or a thicker, "bulk" bond like vitrified.What's everyone using for dressing diamonds and where are you getting them?
I am talking about dressing a 30"aluminum oxide wheel with a diamond point. we are grinding on heat treated 4150, 3" to 6" dia. mostly.Are you speaking of dressing a diamond wheel true? There's a few threads, including a recent one on the process. It also matters whether you're using a plated wheel or a thicker, "bulk" bond like vitrified.
Issue dressing diamond wheel.Ive been chasing my tail trying to dress this 220grit diamond wheel. It was mildly abused before I ended up with it, having its leading edge worn considerably more than the rest. Im using a Norton brake dresser that is operating properly and infeeding in .002 or so per pass. Problem is that I...www.practicalmachinist.com
The alternative ones are still real diamonds, they're just not organically grown, they're made in a lab. I have always used Nortons, but I got a huge box of resettables with my Monoset that are super old school, set in copper shanks. Also, I suggest downloading the Norton dressing manual in the sticky if you don't already have a copy.
I suspect the non-resettable diamonds are imperfect macles. The resettable I have reset are a 4 cornered pyramid, and can be reset to another corner.
I am talking about dressing a 30"aluminum oxide wheel with a diamond point. we are grinding on heat treated 4150, 3" to 6" dia. mostly.
I in the past we used a Norton 2ct diamond. I tried to go with a cheaper "no name" diamond and it breaks down way too fast for what they cost. we then switched to a cluster diamond. the cluster dresses well for a fine finish but they don't work to open the wheel up for roughing.
good point. I will try dressing faster with the cluster next time.Are you running the cluster across the wheel at the same speed as the single point diamond when dressing? You need to haul ass with a cluster if you want an open wheel. Like possibly rapid traverse across rather than feed.
What's everyone using for dressing diamonds and where are you getting them?
Another important parameter is what kind of roughness do you need and what is the grit size of your grinding wheels?we are grinding on heat treated 4150, 3" to 6" dia. mostly.
I was asking myself the same questions. The Chinese have (big surprise) put a lot of effort into synthetic diamond manufacture, and they may have the process cheap enough that single(ish) crystal diamonds large enough for dressers are practical, which would explain the low cost.I am surprised that good size dressings diamonds can be had at $2.50 on eBay and
under $20 at KBC...
*Are there any old-time grinder hands using these who could give a report?
Are these low-price ones a manufactured-diamond, or a vitrified composite of diamond powder/grits?
I visited the GE diamond lab on 9-mile road in warren mi and those had much the same attributes as real diamonds..but they were not so cheap to produce that you could sell them for 1/10 of the price of a real diamond.
The story back then was that an agreement was made with De Beers about how they would be called and sold.
I heard of a vapor layering process to make MDs , but I don't know much about it.
I have a 7" 220 natural diamond wheel and it cuts/grinds carbide better than an MD wheel, it even sounds better.