i know of alot of people that stitch weld there hachis for more body/chasis strength.
but i have also seen some cars that have been pop rivited instead of being welded.
can anyone explain to me which is better or which would be stronger??
and why they would weld rather than rivet and/or rivet rather than weld???
or is it a waste of time doing either???
cheers
chapl
This has been covered before.
care to share?
Personal opinion... Welding is strong in shear and tension loads... where as pop rivits is only strong in shear loads... but pop riviting has less distortion due to no heating... Pop riviting can also be more easily done at home... But there are many areas in a car that cannot be rivited and only welding will work. Although in certain areas... it really doesnt matter at all as those areas are not exposed to tension loads.
Welding requires the welded surface to be sealed and painted over to prevent rusting and all round a more time consuming job. If u have the time/money, go the cross stitch/seam/spot weld job... A spot welder is hard to come by... most people just use a mig welder and sand back the excess... pretty much the same result except in certain areas... using a proper spot welder will save u weight.
I dont know how heavy a roll of mig wire is... but i know its pretty fuckin heavy.... and i used half a roll on my car... bout 1000 welds...
Is it worth it...? hmm... dont know if my car is faster due to the welds but the increased stiffness definately makes the car more responsive to drive. If i was to build another sprinter from ground up... i would definately do it again..!
Do a search on the old toymods forum
I have seen it discussed in full length about 4 times!
But yeh in a nutshell -
poprivet = removal of metal = bad = shit
welding = adding metal + fusing seams = no flex = good
A good seam welded hachi with no cage can be found to be stiffer than a non seam welded hachi with a full cage.
AE86 4AGE "Slowly but surely"
Here's a good one with pics if your a member
there must be a reason why people rivet there cars but??
anyway. instead of getting into an argument i might aswell jus weld rather than rivet.
cheers
yea go for the weld
30kw club
Well, being an engineer, I thought I'd bring up a good point...
the pop-rivets are almost as good welding.
welding is a bit better, but having pop-rivets is no disadvantage, not really.
It can be an advantage, because any monkey can put a rivet in, but most of the metal in the chassis is really thin, and if you're not really pro with it, you'll just burn hols in it and f*** it and warp it a little.
Just put on in the middle of all the welds you get from the factory, and that'll be good enough, anymore wont do anything.
Im sure bubbles would be proud on what you just said. If only toymods still existed.
Just a quick question, I have kemppi mig 160 and I was wondering what current and wire speed should I be running for spot/plug welding?
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