What do you mean? As in start the weld on the old piece of metal so it melts on the new?you cut your rot out and as i can see is you welded from your thin to the new sheet
why didnt you weld from your new sheet to the old which will be thinner
think about it as its easier to weld it that way
you can also shape it much better
That's interesting, I thought you would just start in the middle of the two, down the linenope other way around
weld from your new to the old which is thinner
Cheers mate, I'll look at this method nowits easier to weld from the new to the old as its thicker old is grinded down so is thinner
tack it first then start welding using thick to thin method of welding