john melia 1 Posted June 18, 2015 Share Posted June 18, 2015 i've just bought myself a wood lathe , to start learning some turning , bowls ect , just wondering where i can get a suitable 150mm grinding wheel for sharpening and shaping hss steel , seen a few "white" wheels on ebay but £38 !!! i think not , apparentley the standard wheels on the bench grinder will not do the job , as they can overheat the tip of the tool i have a feeling this is going to tak e over as my number one hobby , so i may be selling all my flying stuff Quote Link to comment Share on other sites More sharing options...
Simon Chaddock Posted June 18, 2015 Share Posted June 18, 2015 John An ordinary bench grinder will tackle HSS quite adequately but you just have to take it gently. Actually hardened carbon steel (i.e. a wood chisel) is worse. Not that the wheel doesn't grind it but its hardness is permanently degraded by heat, much more so than HSS. The 'high speed' in its name actually refers to its ability to remain hard at the higher temperatures resulting from higher cutting speeds. White/green wheels are actually 'soft' releasing fresh cutting edges readily which why they cut well but they do need more 'dressing' to keep the wheel cutting edge flat and you really need diamond for that! Quote Link to comment Share on other sites More sharing options...
Dave Bond 2 Posted June 18, 2015 Share Posted June 18, 2015 HSS can be ground on normal black wheels. In terms of heating cool the part in water as you go and take it slow. Don't let it get to the temperature where it discolours. White wheels are very soft and though will work they wear more quickly. My other hobby is model engineering where I have made a few locos from scratch. I grind and sharpen lathe tools and drills made from HSS all the time with black wheels. No problem at all. Quote Link to comment Share on other sites More sharing options...
john melia 1 Posted June 18, 2015 Author Share Posted June 18, 2015 thanks for that guys Quote Link to comment Share on other sites More sharing options...
Plummet Posted June 18, 2015 Share Posted June 18, 2015 Have a look at http://www.axminster.co.uk/aluminium-oxide-white-grinding-wheels Make friends with your sharpening equipment. Some folk spend more time sharpening than turning. Plummet Quote Link to comment Share on other sites More sharing options...
john melia 1 Posted June 18, 2015 Author Share Posted June 18, 2015 Posted by Plummet on 18/06/2015 16:45:39: Have a look at http://www.axminster.co.uk/aluminium-oxide-white-grinding-wheels Make friends with your sharpening equipment. Some folk spend more time sharpening than turning. Plummet £36 ! Quote Link to comment Share on other sites More sharing options...
Stevo Posted June 20, 2015 Share Posted June 20, 2015 Cant go wrong with a white wheel. I have one on the right and a cheaper general purpose one on the left, coarse variety. Diamond sharpeners are mandatory, I'm afraid...! Oddly enough I had a Bosch bench grinder that vibrated like hell.... I ditched it when I moved house and inherited my Dad's old one... god knows what make that is, some old cheapie Japanese thing... runs straight as a die! Edited By Stevo on 20/06/2015 10:54:50 Quote Link to comment Share on other sites More sharing options...
Stevo Posted June 20, 2015 Share Posted June 20, 2015 On the subject of wood lathe tools, my Dad used to grind them up from old files... I've tried this and yes it does work well - so you could save a bit there 'aint no substitute for Sorbys though..... Quote Link to comment Share on other sites More sharing options...
Shaunie Posted June 20, 2015 Share Posted June 20, 2015 Going back in the memory banks a bit but I thought you could dress aluminium oxide wheels with a carborundum stick! Shaunie. Quote Link to comment Share on other sites More sharing options...
Stevo Posted June 20, 2015 Share Posted June 20, 2015 Indeed you can Shaunie...no substitute for Diamond though! Quote Link to comment Share on other sites More sharing options...
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