Author | Topic |
Location: Canberra
Registered: May 2002
|
Re: mig or ark?
|
Thu, 27 October 2005 01:49
|
|
SL666 wrote on Thu, 27 October 2005 11:25 | This might sounds like a silly question, but what are you burning out of the seams anyway? paint? wouldn't they have been spot welded in the first place?
|
I'm not 100% sure what it is, but, if you try to weld straight over a seam, you'll see all sorts of stuff blowing out from underneath and trashing your weld.
I assume that they don't spot weld bare steel, there is a coating to stop water getting between the seams. If there is any sort of gap, you're going to get dirt, paint and oil trapped down there - all of which can contaminiate the weld. The plasma stream will melt some of it and loosten up some more, but, it won't get rid of it. Another advantage of the oxy is the velocity of the gas blowing out the nozzle clears out some more of the crud.
Don't get me wrong, tig welds would probably be slightly better, but I don't think it's worth the extra time and effort involved (particularly as you are just reinforcing the existing structure).
|
|
|
| Subject | Poster | Date |
|
mig or ark?
|
ae86 slide | Wed, 26 October 2005 10:27 |
|
Re: mig or ark?
|
oldcorollas | Wed, 26 October 2005 11:00 |
|
Re: mig or ark?
|
ae86 slide | Wed, 26 October 2005 11:17 |
|
Re: mig or ark?
|
oldcorollas | Wed, 26 October 2005 11:22 |
|
Re: mig or ark?
|
Scootaphill | Wed, 26 October 2005 11:44 |
|
Re: mig or ark?
|
bluehachi | Wed, 26 October 2005 21:08 |
|
Re: mig or ark?
|
oldcorollas | Wed, 26 October 2005 23:17 |
|
Re: mig or ark?
|
clubagreenie | Wed, 26 October 2005 12:20 |
|
Re: mig or ark?
|
ed_ma61 | Thu, 27 October 2005 01:30 |
|
Re: mig or ark?
|
kingmick | Wed, 26 October 2005 20:21 |
|
Re: mig or ark?
|
Ben Wilson | Wed, 26 October 2005 22:03 |
|
Re: mig or ark?
|
Grega | Wed, 26 October 2005 22:40 |
|
Re: mig or ark?
|
SL666 | Thu, 27 October 2005 00:29 |
|
Re: mig or ark?
|
Ben Wilson | Thu, 27 October 2005 00:46 |
|
Re: mig or ark?
|
SL666 | Thu, 27 October 2005 00:54 |
|
Re: mig or ark?
|
Ben Wilson | Thu, 27 October 2005 01:12 |
|
Re: mig or ark?
|
SL666 | Thu, 27 October 2005 01:25 |
|
Re: mig or ark?
|
Ben Wilson | Thu, 27 October 2005 01:49 |
|
Re: mig or ark?
|
SL666 | Thu, 27 October 2005 02:30 |
|
Re: mig or ark?
|
Ben Wilson | Thu, 27 October 2005 02:39 |
|
Re: mig or ark?
|
Cool1 | Thu, 27 October 2005 03:44 |