I’m in the process of rebuilding the bottom of my core support (18 ga) on my 60 Ranch Wagon and debating on building it in plate form then bending, welding versus trying to form/shrink the metal into shape. I’m confident with the plate/welding approach but I’ve never tried to shrink that much material to produce a shape. The last pic is the stiffener (14 ga) that I produced with the plate/welding approach. Any thoughts are appreciated.
Could bend it straight in a sheet metal brake then cut it to form the shape. I’ve done that with rain gutters for trunks before. Saves a good bit of welding. I’ve also beat metal into submission before to make parts like that. 2 halves and an end
At 18 gauge I'd be a little concerned that the grinding of the welds to make it look pretty / factory might run the risk of grinding away the strength. Possibly increase to 16? Your 14g fabrication looks well. And agreed on the folded sections. Doable with no special tools. Chris