Almen strip

The Almen intensity measurement provides a way to compare two jet processes dar. this purpose, the deformation which causes the beam process in a defined sample determined. In the thus measured intensity different influences are recognized, including hardness and shape of the abrasive, impact angle, kinetic energy of the abrasive, and any disabilities.

Construction: A Almen test strips made ​​of spring steel is firmly clamped at a distance of 90 mm ​​from the nozzle. Here are three test strips available ( N, A, C). It is shot-peened, and then measure the change in the resulting deformation, until the saturation point is reached. This is defined as the deflection, which increases only about 10% at the beam doubling time. At this point, the Almen intensity is determined in mm deflection and on the meadows strips used based (example: 0.2 mmA )

Thickness of the test strips: N = 0.79 mm A = 1.29 mm C = 2.39 mm