b14wrc
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 posted on 20/10/12 at 06:33 PM |
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Chassis welding.
Hi guys,
Thought I'd put this as a separate topic, just want to know if people tack the whole chassis first, then weld up fully, or do a complete weld
before moving to the next stage?
I planned to tack all then fully weld, is this the best approach?
Rob
20vt powered rear engined locost
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r1_pete
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| posted on 20/10/12 at 06:39 PM |
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Personally, I'd tack as you suggest, then weld part joints at opposite ends in turn to prevent putting too much heat into one place and causing
distortion,
[Edited on 20/10/12 by r1_pete]
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fullpint
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| posted on 20/10/12 at 06:48 PM |
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quote:
Originally posted by r1_pete
Petsonally, I'd tack as you suggest, then weld part joints at opposite ends in turn to prevent putting too much heat into one place and causing
distortion,
Totally argee with above. Not a good idea to weldwith out tacking first..
I've over 28 years in dealing with magnesium wheels. Refurbishment and can powder coat most metal parts. Visit my web site if you wish..
www.tpcs-magnesium-refurbs.co.uk
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big_wasa
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| posted on 20/10/12 at 06:52 PM |
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As above, If you try to weld as you go, with out a jig it will come out bannana shape.
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mark chandler
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| posted on 20/10/12 at 08:14 PM |
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You need to tack, then when everything is in the right place just weld one side of the join, move to the opposite side and gradually work your way
around, visiting each join 4 times.
The aim is to not overheat any area or It will distort.
Cheers Mark
[Edited on 20/10/12 by mark chandler]
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ashg
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| posted on 20/10/12 at 08:45 PM |
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personally i find fully welding the bottom section up fully then working up in sections far better for stopping distortion as you can check and
measure up as you go.
caterham make their chassis up in sections on individual jigs then stick them all together, and they do it that way for good reason.
Anything With Tits or Wheels Will cost you MONEY!!
Haynes Roadster (Finished)
Exocet (Finished & Sold)
New Project (Started)
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jossey
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| posted on 20/10/12 at 08:55 PM |
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Fully weld bottom chassis on the table the welD in sections.
That's how the book suggests
Thanks
David Johnson
Building my tiger avon slowly but surely.
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