Stretcher Leveling at Alliance Steel

Stretcher leveling is a process that stretches material sufficiently to exceed the yield point in all its fibers, equalizing internal trapped stresses. This activity produces material that stays flat even after laser cutting, notching, punching, or subsequent shearing operations. Eliminating post-cutting stress spring back can make additional processes like welding and forming easier, unlike temper passing which is a process that applies a massive amount of pressure, compressing the steel. In temper passing, two rolling pins travel down the length of the plate/sheet that squeezes out the internal
stress.