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Bklyn63
Samba Mafioso
Joined: August 24, 2002
Posts: 966
Location: "What am I, a mirage?"
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 Posted: Thu Aug 19, 2004 4:58 pm Post subject: Grinding down some metal welds.... |
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| what can I use instead of the conventional grinding wheel to smoothen out my welds? I am a bit concerned after welding in my ragtop section that the surrounding metal will get too thin as I grind it down. |
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rlarkin
Samba Member
Joined: November 10, 2002
Posts: 184
Location: Lodi, Ca.
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| Posted: Thu Aug 19, 2004 5:12 pm Post subject: Re: Grinding down some metal welds.... |
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| Bklyn63 wrote: |
| I am a bit concerned after welding in my ragtop section that the surrounding metal will get too thin as I grind it down. |
And it will FAST if you are not carefull.
Use a FLAPPER wheel instead of a grinding wheel, and stay with a 120 grit and go slow. They produce less heat, and work great.
Get it as flat as possible and maybe even tap it down a little and blend in with filler. |
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diy570
Samba Member
Joined: September 19, 2003
Posts: 1062
Location: Maggie Valley, NC
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| Posted: Thu Aug 19, 2004 5:51 pm Post subject: |
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| i use a cut-off tool with a cutting wheel to get the majority of it down. if you are careful you can avoid hitting the metal surrounding the weld, then use a 3" 36 grit roloc disc on a die grinder to get the remaining weld down. |
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Bklyn63
Samba Mafioso
Joined: August 24, 2002
Posts: 966
Location: "What am I, a mirage?"
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| Posted: Thu Aug 19, 2004 6:30 pm Post subject: |
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I have one of those flapper discs.I noticed that it does an excellent job at smoothing the welds down. my grinder was burning my metal. live and learn I guess.
I think y flapper disc is 90 grit. I'll pick some 120 grit up also.
thanks
Leo |
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Big Jim
Samba Member
Joined: May 27, 2004
Posts: 291
Location: Denver
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| Posted: Thu Aug 19, 2004 7:04 pm Post subject: |
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| I use a hard wheel to take the bulk of the material off and switch to a flap disk when I get close to the body level. The flap disk works good on the small raised weld bead and doesn't cut in to the broad sheet metal surface hardly at all. |
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Bklyn63
Samba Mafioso
Joined: August 24, 2002
Posts: 966
Location: "What am I, a mirage?"
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| Posted: Fri Aug 20, 2004 4:31 pm Post subject: |
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Jim, what do you mean a "hard wheel" I have heard many people speak about it but I dont think I ever saw one.
-Leo |
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rlarkin
Samba Member
Joined: November 10, 2002
Posts: 184
Location: Lodi, Ca.
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| Posted: Fri Aug 20, 2004 6:10 pm Post subject: |
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A hard wheel is just the term used for the Carborundum gringing disks.
Soft wheel would be a flapper. |
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Bklyn63
Samba Mafioso
Joined: August 24, 2002
Posts: 966
Location: "What am I, a mirage?"
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| Posted: Fri Aug 20, 2004 7:03 pm Post subject: |
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ok..I got it now..thanks...
didnt know the lingo... |
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