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Author: Subject: Grinding welds
dave

posted on 9/1/12 at 11:14 PM Reply With Quote
Grinding welds

I have been filling up the old rivet holes in the chassis and now I need to grind them down. I have a 80 grit flap wheel but its a bit rough, is there something else I can use?
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loggyboy

posted on 9/1/12 at 11:19 PM Reply With Quote
Metal file?
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Simon

posted on 9/1/12 at 11:30 PM Reply With Quote
B&D Powerfile. Various grades of belt available from Screwfix etc. Shop around for best price - varies wildly!

ATB

Simon

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owelly

posted on 9/1/12 at 11:48 PM Reply With Quote
Flap disc in the angry grinder. Go nice and gentle and you can polish steel.





http://www.ppcmag.co.uk

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Andi

posted on 9/1/12 at 11:54 PM Reply With Quote
quote:
Originally posted by owelly
Flap disc in the angry grinder. Go nice and gentle and you can polish steel.


+1 for the angry flap disc.. Gives a mirror like shine to the roughest of steels

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NigeEss

posted on 10/1/12 at 12:01 AM Reply With Quote
+2





Time is an illusion. Lunchtime doubly so.................Douglas Adams.

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owelly

posted on 10/1/12 at 02:17 AM Reply With Quote
This was a bit of a rush job but you get the idea.







[Edited on 10/1/12 by owelly]





http://www.ppcmag.co.uk

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MikeFellows

posted on 10/1/12 at 08:47 AM Reply With Quote
you must have the patience of a saint how long did that take

good work though

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owelly

posted on 10/1/12 at 09:01 AM Reply With Quote
Sections sliced with thin cutting disc using paper template so took about 20 minutes. Setting up, tacking then MIG welding took about an hour and about 10 minutes to whiz over it with the flappy disc.





http://www.ppcmag.co.uk

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onenastyviper

posted on 10/1/12 at 10:19 AM Reply With Quote
quote:
Originally posted by Simon
B&D Powerfile. Various grades of belt available from Screwfix etc. Shop around for best price - varies wildly!

ATB

Simon


Just make sure you thoroughly clean the metal swarf otherwise on day it will flash over and die - did on me
Angry Grinders seem to be better designed to handle the dust - the powerfile seemed to suck it in through the drive sprocket.

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designer

posted on 10/1/12 at 11:13 AM Reply With Quote
Another for the flap disc.
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Peteff

posted on 10/1/12 at 05:15 PM Reply With Quote
I use a flexible backing disc with 80 grit fibre disc on the grinder, it works out a lot cheaper than flap discs if you are doing enough and you can get discs in any grade.





yours, Pete

I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.

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Simon

posted on 10/1/12 at 08:35 PM Reply With Quote
quote:
Originally posted by onenastyviper
quote:
Originally posted by Simon
B&D Powerfile. Various grades of belt available from Screwfix etc. Shop around for best price - varies wildly!

ATB

Simon


Just make sure you thoroughly clean the metal swarf otherwise on day it will flash over and die - did on me
Angry Grinders seem to be better designed to handle the dust - the powerfile seemed to suck it in through the drive sprocket.


Did you leave the dust collector on, b&d recommneded 20 years ago that if using on metal, just to leave the back open without the collector.

Broken dozens of them meself. Make sure if you wear out the arm (bearings in wheel go) that you hang onto it, and when grinder dies under warranty, send arm back to get replaced too.

ATB

Simon

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Neville Jones

posted on 11/1/12 at 11:18 AM Reply With Quote
Try one of the combined sanding and polishing discs. You should be able to get to a near miror finish.
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