Flame Straightening Sheet Metal

The flame straightening uses this new deformation to correct the original deformation.

Flame straightening sheet metal. The torch can now be moved along the length of the area to be straightened. Metal materials have the property of thermal expansion and contraction. Removing deformations with an oxy acetylene flame this process is based on the physical principle that metals expand when heated and contract when cooled. Heating localized areas and then using a hammer and dolly to.

Suitable materials include steel nickel copper brass and aluminium. The heat shrink begins at an edge or in a single spot. If expansion is restricted stresses build up. Flame straightening is an efficient well established method of correcting the weld distortion without impairing the material.

In practice an oxy acetylene flame is used to rapidly heat a well defined section of the workpiece. Body files are usually used after another age old process has been used to straighten or shrink sheetmetal. Upon cooling the metal contracts more than it could expand when heated and any resulting distortions can therefore be straightened out.