Place against the face of your workpiece and strike with a hammer.
Hammer welding sheet metal.
Some bodymen prefer to pause after each short weld bead then hammer the weld if you can get a dolly behind the patch to help relax the panel back to its natural shape.
It relies on having the weld itself soft as well as the base metal with minimal bead buildup.
The blow will transfer to the workpiece without damaging the finish.
What you are talking about is hot planishing.
Here s a few tips on repairing rust holes in car body panels.
Place against the face of your workpiece and strike with a hammer.
Gene winfield has mastered the technique of planishing the welds or hammer welding modern slang term we know the blacksmith term technically means something different over the years when oxy acetylene welding sheet metal.
Gary then demonstrates the process of skip and hammer welding using 20gauge sheet metal to control metal warp and distortion that is common to many automotive body welding.
Do not try to run a bead from one end to the other.
Avoid warping the sheet metal.
While replacing body panels overheating and warping thin sheet metal is common.
You have to adjust your mind to the concept that when you hammer on sheet metal with a steel hammer onto a steel dolly or anvil that you will expand or increase the surface area by thinning the metal.
Also known as dinging spoons these tools are often used to smooth ridges and dings in sheet metal.
In this video im showing you the process i use to do small rust repairs where a complete panel.
Also known as dinging spoons these tools are often used to smooth ridges and dings in sheet metal.
You also have to grasp the fact that you can reduce the area of sheet metal by thickening it.
Style b have large slightly curved faces for efficient finishing and shaping of sheet metal edges.
Todd pretty much has it hammer welding uses a forge anvil a little borax and a large hammer.
Then he takes us through the welding process using inch structural steel plate to create fusion tacks t welds butt welds and round tubing welds.
The best way to reverse it is to hammer on dolly on the weld to stretch the metal back out.