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angle grinder for metal removal after welding (24 posts / 1,620 views)
warchild warchild
Posts: 803
Post #1 18 Jan 2021 00:04
0
hi, can someone who does metal work link me to the right angle grinder blade, to use to clean up welds, i normally use my metal cutting blade bcos im lazy, after i have welded something, however i know this is not right, but dont know what to buy to clean up or remove metal, thank you
Andydave
Posts: 840
Post #2 18 Jan 2021 05:57
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In reply to Post #1
Flap disc
duggs
Posts: 5,559
Post #3 18 Jan 2021 06:29
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In reply to Post #1
I'm no metal worker, but I have used these for flatting rough cuts, chamfering edges etc, and use masonry versions regularly

link
bluebeat13
Posts: 2,168
Post #4 18 Jan 2021 15:05
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In reply to Post #2
Agree, if you are ok spending a few quid more then the flap discs are nicer to use and will remove material pretty quickly until they wear down.

https://www.toolstation.com/flap-disc/p67922

Old-Cornishman
Posts: 688
Post #5 18 Jan 2021 15:32
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In reply to Post #1
Any grinding disc about 6 mm thick will do what you want, however it's not always advisable to buy the cheapest. Some shed grit very fast and although they might cut well they will be very dirty and also not last well. Flap discs work well for light metal removal.
As you say grinding with a cutting disc is wrong and it could easily shatter.
warchild warchild
Posts: 803
Post #6 18 Jan 2021 16:09
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ok thanks ill get one of the grinding disks,
framey framey
Posts: 5,319
Post #7 18 Jan 2021 16:27
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In reply to Post #6
These are the best type along with a backing pad
Just make sure you get them for the right sized spindle
I still use these whenever I need to grind down welding.

60 grit is really rough and make short work of welding finer work use a higher number


https://www.zoro.co.uk/shop/abrasives/sanding-discs/100-x-16mm-al%2Fox-fibre-discs-p80/p/ZT1032068X?utm_source=google&utm_campaign=pla%2B%7C%2BAbrasives&utm_term=ZT1032068X&utm_medium=pla_css_2&targetid=pla-394771375825&loc_physical_ms=1007097&dev=c&gclid=EAIaIQobChMI5M7Y8PGl7gIVgu_tCh01fwk1EAQYAiABEgLKz_D_BwE

https://www.zoro.co.uk/shop/power-tools/backing-pads/m14x2-0-flexible-backing-pad-for-125mm-disc-diy/p/ZT1025068X

warchild warchild
Posts: 803
Post #8 18 Jan 2021 20:11
0
In reply to Post #7
cheers ill have a look also
scozza
Posts: 18,421
Post #10 5 Aug 2021 15:17
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In reply to Post #6
As Andy mentioned, it's the flap disks you want, far superior to grinding disks, try then and you will see
ip100 ip100
Posts: 12,494
Post #11 6 Aug 2021 10:08
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In reply to Post #10
I actually think the opposite Chris, those flap wheels are ok but a proper disc cutter with grinding blade is way better imo
troutybrown
Posts: 708
Post #12 6 Aug 2021 10:17
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Just a quick safety message to the DIYer's looking at this thread.
ALWAYS check max rpm on disc and grinder the rpm on disc MUST be greater than that of grinder.
It is not a pretty sight when a disc explodes and the damage it can cause.
Leeroyjenkins Leeroyjenkins
Posts: 3,955
Post #13 6 Aug 2021 10:22
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In reply to Post #11
Depends what you're grinding, where and why i guess. I do a lot of welding and fabrication and only ever use flap discs. In fact i cant remeber the last time i used a grinding disc.
ip100 ip100
Posts: 12,494
Post #14 6 Aug 2021 13:03
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In reply to Post #12
Yeah it can be nasty, but if you are aware of the dangers and respect the kit it's no big deal. I've had shed loads shatter on me over the years and never had one injury because of it, that's using from little 4 inch right up to 12 inch discs. Joys of working in demo I guess
framey framey
Posts: 5,319
Post #15 6 Aug 2021 16:04
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In reply to Post #14
I had a slitting disk shatter it bounced and rode up my the side of my nose
Blood everywhere my eldest daughter **** herself when she saw the blood lol
Good job I was wearing glasses
ip100 ip100
Posts: 12,494
Post #16 6 Aug 2021 16:34
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In reply to Post #15
Ouch. I've had a fair few bits hit me but never had any to the face thankfully. I use very thin 9 inch cutting discs mostly and they generally snap away from the centre rather than shatter into pieces,so I'm just left with the centre on the grinder and the outer disc usually stays stuck in whatever I'm cutting
framey framey
Posts: 5,319
Post #17 6 Aug 2021 16:55
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In reply to Post #16
Lol
This one did worry me until I saw it and then

Ahh it's just a scratch
Old-Cornishman
Posts: 688
Post #18 6 Aug 2021 17:00
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In reply to Post #15
Sounds nasty. I've seen pictures of quite bad cuts from discs mainly when still driven though.
Retired now but I found a face shield safer and also reduces the amount of grit you eat.
scozza
Posts: 18,421
Post #19 7 Aug 2021 19:59
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In reply to Post #15
Some good feedback there for people

I currently work in heavy industry and have.a few welders that work for me and contractors, Nasty accident a couple of years ago now, 9 inch grinder bounced back and the lad had to have 34 stitches in his face, they take no prisoners!!!

A month ago one of our foreign plants, same again, bounced back and hit his glasses, lot of stitches.

A word of warning, all grinders are extremely dangerous, 9” ones deadly. We have a clear visor policy since the first accident. A lot of places are banning large hand held grinders and rightly so

mal mal
Posts: 8,986
Post #20 7 Aug 2021 21:35
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In reply to Post #19
Not the first time you've typed the words '9 inch' and 'grinder' on your phone eh scozza? ...
braders1978 braders1978
Posts: 18,195
Post #21 7 Aug 2021 22:02
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In reply to Post #20
ip100 ip100
Posts: 12,494
Post #22 7 Aug 2021 23:42
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In reply to Post #19
I actually think the little 4 inch are more dangerous because people become complacent. Although yeah I've seen someone take a 9 inch blade to the face,not a pretty sight.
scozza
Posts: 18,421
Post #23 8 Aug 2021 08:39
0
In reply to Post #20
I was waiting for something like that to be fair

And I KNEW Braders would pop up

naeempushia
Posts: 1
Post #24 13 Nov 2021 18:07
0
In reply to Post #19
In order to use the Pro MIG 180 on thicker materials, 208/230 volts will be needed as input voltage. Welders made by Lincoln Electric are well known for their quality, and the Lincoln Pro MIG 180 is no exception.

In terms of construction and feel, Forney Easy Weld 140 MP is excellent. In addition to its durable construction, it is lightweight as well. The weight of the machine is about 24.81 pounds. Despite its lightweight, this unit weighs only 11 1/2 kilos (11.25 kg). It is suitable for all garage-related tasks.
CaptainCaptain CaptainCaptain
Posts: 10
Post #25 28 Mar 2022 14:00
This message has been suppressed by a moderator.
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