Chassis welding

[croweater]

Hi all,

I have noted that chassis distortion when welding is a norm, so has anyone tried welding up the frame with for example, 3mm spacers under the centre section , after tack welding, then clamping down and finish welding?

This is a process used in welding light structures and long beam lengths and I was wondering if it was worthy of consideration, before setting up my chassis and perhaps having a reverse bow just like the sydney Harbour Bridge!!

Rgds

Brian