Stretching Sheet Metal

In the stretching process the surface area of a blank is increased as a result of tension and thinning of the metal.

Stretching sheet metal.

During stretching there is no inward movement of the blank edge. One is the improper handling another one is the elasticity of sheet metal forming materials. These tools are great for making smooth radius bends in sheet metal without cutting heating or hammering the material. During drawing the metal is flowing in the die and the blank is changing shape.

Reproduce just about anything with a curved edge while mounted to your bench in a vice or on the optionally available stand part number tp371st. Stretch forming is a metal forming process in which a piece of sheet metal is stretched and bent simultaneously over a die in order to form large contoured parts. Stretch forming corporation currently occupies 100 000 square feet of manufacturing space at our corporate office in perris california. Stretch forming is performed on a stretch press in which a piece of sheet metal is securely gripped along its edges by gripping jaws.

Shrinker stretchers accomplish this with a pair of ribbed jaws that bite into. The reason behind it is that welding positions are misaligned. This process involves changing the shape of the metal and tends to put a bulge or curve into the panel. These exceptional metal formers are one of our best selling tools.

Don t confuse stretching with drawing. Stretch forming is a metal forming process in which a piece of sheet metal is stretched and bent simultaneously over a die in order to form large contoured parts. Stretching the profile of a piece of sheet metal will greatly increase the strength of the metal. The main reasons for the cracking are over stretching or stress concentration.

Item 168753 model 11786. The basic principle of shrinking and stretching relies on squeezing the metal together or pulling it apart to stretch.