Tool Grinder - Revision history

DT Online at 09:57, 29 May 2017

2017-05-29T09:57:40Z

← Older revision		Revision as of 09:57, 29 May 2017
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	=====Description=====		=====Description=====

	A [https://en.wikipedia.org/wiki/Bench_grinder '''Benchtop Grinder'''] is commonly used for tool sharpening - especially drills and lathe tools. The grinding wheel is usually made from [https://en.wikipedia.org/wiki/Silicon_carbide '''Carborundum'''] bonded together by [https://en.wikipedia.org/wiki/Sintering '''Sintering''']. <span style="color: red">The wheels are very brittle and if not mounted correctly, or abused in use, they can burst into fragments and cause serious injury.</span>		A [https://en.wikipedia.org/wiki/Bench_grinder '''Benchtop Grinder'''] is commonly used for tool sharpening - especially drills and lathe tools. The grinding wheel is usually made from [https://en.wikipedia.org/wiki/Silicon_carbide '''Carborundum'''] bonded together by [https://en.wikipedia.org/wiki/Sintering '''Sintering'''].
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			<span style="color: red">'''Safety Point!'''
			The wheels are very brittle and if not mounted correctly, or abused in use, they can burst into fragments and cause serious injury.
			</span>
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DT Online: Added Template

2016-08-12T14:07:50Z

Added Template

← Older revision		Revision as of 14:07, 12 August 2016
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	[[File:BenchtopGrinder.png\|~~200px~~\|right]]		[[File:BenchtopGrinder.png\|300px\|right]]
			__TOC__


			=====Description=====

	A [https://en.wikipedia.org/wiki/Bench_grinder '''Benchtop Grinder'''] is commonly used for tool sharpening - especially drills and lathe tools. The grinding wheel is usually made from [https://en.wikipedia.org/wiki/Silicon_carbide '''Carborundum'''] bonded together by [https://en.wikipedia.org/wiki/Sintering '''Sintering''']. <span style="color: red">The wheels are very brittle and if not mounted correctly, or abused in use, they can burst into fragments and cause serious injury.</span>		A [https://en.wikipedia.org/wiki/Bench_grinder '''Benchtop Grinder'''] is commonly used for tool sharpening - especially drills and lathe tools. The grinding wheel is usually made from [https://en.wikipedia.org/wiki/Silicon_carbide '''Carborundum'''] bonded together by [https://en.wikipedia.org/wiki/Sintering '''Sintering''']. <span style="color: red">The wheels are very brittle and if not mounted correctly, or abused in use, they can burst into fragments and cause serious injury.</span>
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	A '''Green Grit''' grinding wheel is needed when sharpening [https://en.wikipedia.org/wiki/Tipped_tool '''Tungsten Carbide Tipped (TCT)'''] tools.		A '''Green Grit''' grinding wheel is needed when sharpening [https://en.wikipedia.org/wiki/Tipped_tool '''Tungsten Carbide Tipped (TCT)'''] tools.


			=====Features and Applications=====

	Tools should be dipped frequently in water to keep them cool during the grinding operation to avoid over-heating and [https://en.wikipedia.org/wiki/Tempering_%28metallurgy%29 '''''drawing the temper'''''].		Tools should be dipped frequently in water to keep them cool during the grinding operation to avoid over-heating and [https://en.wikipedia.org/wiki/Tempering_%28metallurgy%29 '''''drawing the temper'''''].
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	Finally, tools requiring a particularly keen edge ''(e.g. [https://en.wikipedia.org/wiki/Scalpel '''Scalpels'''] may be finished by [https://en.wikipedia.org/wiki/Razor_strop '''Stropping''']).		Finally, tools requiring a particularly keen edge ''(e.g. [https://en.wikipedia.org/wiki/Scalpel '''Scalpels'''] may be finished by [https://en.wikipedia.org/wiki/Razor_strop '''Stropping''']).


			{{Tool Grinder Buyers Guide}}

	[[Category:Secondary]]		[[Category:Secondary]]
	[[Category:Bench Top Equipment]]		[[Category:Bench Top Equipment]]

DT Online at 09:52, 31 July 2015

2015-07-31T09:52:41Z

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	[[File:Tormek.png\|200px\|right\|~~Link~~=http://www.tormek.com/en/\|target=_blank]]		[[File:Tormek.png\|200px\|right\|link=http://www.tormek.com/en/\|target=_blank]]

	Although woodworking edge tools can be sharpened on a '''Benchtop Grinder''', even greater care must be taken to avoid over-heating the tool. Traditionally a slowly revolving and water lubricated [https://en.wikipedia.org/wiki/Grindstone '''Grindstone'''] made from natural sandstone was used, as can be seen on old illustrations, but modern powered benchtop versions are now available complete with a tange of attachments to ensure repeated accuracy.		Although woodworking edge tools can be sharpened on a '''Benchtop Grinder''', even greater care must be taken to avoid over-heating the tool. Traditionally a slowly revolving and water lubricated [https://en.wikipedia.org/wiki/Grindstone '''Grindstone'''] made from natural sandstone was used, as can be seen on old illustrations, but modern powered benchtop versions are now available complete with a tange of attachments to ensure repeated accuracy.

DT Online: Created Article

2015-07-31T09:50:56Z

Created Article

New page

[[File:BenchtopGrinder.png|200px|right]]

A [https://en.wikipedia.org/wiki/Bench_grinder '''Benchtop Grinder'''] is commonly used for tool sharpening - especially drills and lathe tools. The grinding wheel is usually made from [https://en.wikipedia.org/wiki/Silicon_carbide '''Carborundum'''] bonded together by [https://en.wikipedia.org/wiki/Sintering '''Sintering''']. The wheels are very brittle and if not mounted correctly, or abused in use, they can burst into fragments and cause serious injury.

A '''Green Grit''' grinding wheel is needed when sharpening [https://en.wikipedia.org/wiki/Tipped_tool '''Tungsten Carbide Tipped (TCT)'''] tools.

Tools should be dipped frequently in water to keep them cool during the grinding operation to avoid over-heating and [https://en.wikipedia.org/wiki/Tempering_%28metallurgy%29 '''''drawing the temper'''''].

'''[[Milling Machine|Milling Cutters]]''' and other complex tools are most effectively sharpened using a [https://en.wikipedia.org/wiki/Tool_and_cutter_grinder '''Tool and Cutter Grinder''']
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'''Safety Point!'''
All workshop machines can be dangerous - do not use any machine until you have been trained to do so.
Wear eye protection and never grind on the side of the wheel. Grinding wheels should be fitted only by a competent person following manufacturer's instructions.

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'''Note:'''
Bench Grinders should never by used for softer metals such as [https://en.wikipedia.org/wiki/ '''Aluminium'''] ''(but they may be used to shape [https://en.wikipedia.org/wiki/Poly%28methyl_methacrylate%29 '''Acrylic'''] sheet without detriment to the wheel - but care must be taken to clear away waste frequently to avoid ignition)''.

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[[File:Tormek.png|200px|right|Link=http://www.tormek.com/en/|target=_blank]]

Although woodworking edge tools can be sharpened on a '''Benchtop Grinder''', even greater care must be taken to avoid over-heating the tool. Traditionally a slowly revolving and water lubricated [https://en.wikipedia.org/wiki/Grindstone '''Grindstone'''] made from natural sandstone was used, as can be seen on old illustrations, but modern powered benchtop versions are now available complete with a tange of attachments to ensure repeated accuracy.

After [https://en.wikipedia.org/wiki/Grinding_%28abrasive_cutting%29 '''Grinding'''] sharp edge tools must then be [https://en.wikipedia.org/wiki/Honing_%28metalworking%29 '''Honed'''] using an [https://en.wikipedia.org/wiki/Sharpening_stone '''Oilstone'''], [https://en.wikipedia.org/wiki/Sharpening_stone#Whetstones_and_oilstones '''Whet Stone'''] or [https://en.wikipedia.org/wiki/Honing_steel '''Sharpening Steel'''] ''(commonly used by butchers for [https://en.wikipedia.org/wiki/Knife_sharpening '''Knife Sharpening''']).

More recently, sharpening stones and steels have incorporated [https://en.wikipedia.org/wiki/Sharpening_stone#Diamond_plate '''Diamond'''] as the abrasive grit.

Finally, tools requiring a particularly keen edge ''(e.g. [https://en.wikipedia.org/wiki/Scalpel '''Scalpels'''] may be finished by [https://en.wikipedia.org/wiki/Razor_strop '''Stropping''']).

[[Category:Secondary]]
[[Category:Bench Top Equipment]]