Stretching And Shrinking Sheet Metal

Shrinker stretcher available at frost co uk the shrinker stretcher tested by practical classics.

Stretching and shrinking sheet metal.

These two qualities are what make it so workable when it comes to forming or repairing a body panel on your car or truck. You can shrink steel or you can stretch steel. Heating up metal and throwing cold water on it may shrink it a tiny bit but it makes distortion and hard steel. This works the other doesn t.

The press came down and stamped out the correct shape. Shrink stretch some types of sheet metal parts formed by hydroforming rubber pad forming or fluid cell forming require special treatment to adjust angles produce the required contour tolerances or to finely shape or smooth them. When your body panels were made a flat sheet of steel was placed onto a die in a powerful hydraulic press. A process that uses a hammer and dolly a stretcher or an english wheel to pull metal apart.

Start by inserting the fork into the edge of the sheet metal at the desired depth of the shrink you want to make. Shrinker stretchers accomplish this with a pair of ribbed jaws that bite into. In this method you re literally bunching the metal together by forcing it between a crevice with a spade hammer or by folding the metal over at the edges with a homemade tucking fork. The shrinking stretching machine works on a different principle to the old fashioned method of cold shrinking with hammers but the results are favourable.

A method of shrinking metal by bunching it together through force using a crevice and spade hammer or a folding technique where the metal is bent at the edges with a homemade tucking fork. The basic principle of shrinking and stretching relies on squeezing the metal together or pulling it apart to stretch. Do not over heat the steel. Then remove the tool and move it over so the fork will roll the metal over the other side of the fork by twisting the metal the other direction.

Why not just heat it and gently hammer the swell down.