Any paint on the surface of the metal will crack and flake off when it.
How to straighten sheet metal with heat.
Place the dolly on the concave side of the dent or bend.
Careful observation of the effects of the heating will allow you to make adjustments to the location and the amount of heat applied to further the process.
Put simply an experienced practitioner can apply heat in specific areas to straighten load bearing steel whilst still in place without adversely affecting its natural properties.
Nobody wants to tear down and rebuild.
Heat straightening is the art of strategically applying heat to sections of a piece of steel that has been bent out of shape.
How to straighten metal.
To thin the sheet metal will determine the strength of a given steel delivered to the car maker for stamping and forming.
Heat straightening involves applying controlled heat to a deformed part of steel in heating and cooling cycles until the metal gradually straightens.
Heat straightening does not symmetrically straighten the metal and is a gradual process.
A serrated metal disc when spun at 5 000 to 6 000 rpm against the sheetmetal will heat any high spots though not to red hot as with the torch without touching the surrounding areas.
You will be using the metalworking hammer on the convex.
Remove any plastic trim from the metal that requires straightening.