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Thread: Angle Grinder Fatality
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23rd Mar 2014, 10:14 AM #31Member: Blue and white apron brigade
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Yep they do seem to wear faster which is probably why I go through so many but when bought in bulk they are cheap so it doesn't worry me so much although having to constantly replace then is a nuisance.
In terms of wear, I can easily test this. I know an angle grinder with a thin kerf disc removes 11 times more (weight of) metal while cutting than the disc loses weight. I'll do this test later today.
It will be very interesting to measure the volume and dust particle size profiles being generated at the slower speeds. I did this already for a grinder (http://www.woodworkforums.com/showthread.php?t=183111) - I don't see many metal workers visiting this thread - perhaps they should.
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23rd Mar 2014, 11:08 AM #32Most Valued Member
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23rd Mar 2014, 12:01 PM #33Member: Blue and white apron brigade
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I've borrowed the particle measuring gear again from the Uni and will do some dust testing on metal work activity and this time I will post these in the MW forum. The tests take a while and it means I can't do much else in the shed while I'm doing the time based testing. Even if I move around in the shed it disturbs the measurements.
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24th Mar 2014, 04:01 PM #34danielson
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could be a sign of the future...all Metro trains (Melbourne train operator)maintenance depots have a blanket ban on 9'' grinders on SITE...no use..no possession.thankfully 5'' and 7'' grinders have improved to trade level.
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24th Mar 2014, 09:10 PM #35Most Valued Member
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24th Mar 2014, 09:56 PM #36
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24th Mar 2014, 10:55 PM #37Intermediate Member
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How many of us pay attention to the date codes on cut off wheels?
Was years before I realised they even had use by dates. I do still use discs past the date but do so with some trepidation.
James
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25th Mar 2014, 09:10 AM #38Golden Member
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25th Mar 2014, 12:42 PM #39Member
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