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wishbones, erw and seam positioning
hellbent345 - 17/2/09 at 03:42 PM

i have erw tubing for the wishbones, to late to do anything about that now, but i dont think it will matter as long as i position the seam in the right place. however i dont know where the right place is. Should i orient the seam to the top, front of the car, rear of the car or towards the ground?
thanks al


JeffHs - 17/2/09 at 05:46 PM

I was hoping an expert would answer this. I used CDS but looking at the British Standards I can't see any difference in strength between ERW & CDS. If you're happy to use ERW I don't think it matters where the seam is.

Unless someone knows better.....


907 - 17/2/09 at 08:38 PM

IMHO

The cold working of CDS raises the tensile strength, but when you weld it the heat normalizes it anyway.

I've seen pics of bent wish bones, but never of a split seam.
I wouldn't worry.


My own w/b's are stainless, so the seam is on the underside, but only so it doesn't show when polished.


Paul G


hellbent345 - 17/2/09 at 08:56 PM

alritey fellas thanks


Davey D - 18/2/09 at 09:11 AM

Working in fabrication for years, i have never seen a seam on erw split. even on things that take a hell of a lot more strain than a set of wishbones on a car. personally i wouldnt worry about it