Talk:Grinding wheel
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[edit] Emery wheel
Is "emery wheel" equivalent to "grinding wheel"? -- Kjkolb 08:43, 11 November 2005 (UTC)
It was right end of the 19th century and beginning of the 20th when "emery" was the most used abrasive grain. Since then much more efficient man made abrasives: Aluminum oxides "Corundum", silicon carbides "Carborundum", diamonds, cubic boron nitrides (CBN)...are used to make grinding wheels and emery is no longer used for this application.
Natural emery is not very hard and may contain a significant quantity of hazardous free silica that's why it is no longer used for grinding wheels and even for "emery cloth" now made with aluminum oxide or silicon carbide grains as well as "sand paper".
Still many people continue to use the term "emery wheel". Junglejob 11:24, 5 December 2006 (UTC)
Emery cloth is used in the industry to vaguely differentiate specialized paper/belt grinding media and sandpaper. Emery wheel, however, is no longer used. - Toastydeath 23:20, 5 December 2006 (UTC)
