A process for the determination of the sheet during its deformation and measuring apparatus for carrying out the method

摘要

The invention relates to a method and a measuring apparatus for the determination of the sheet material and its deformation. For this purpose, a strip-shaped sample (1) between two clamping jaws (2, 3) and clamped by means of a pulling element (9) preferably at a constant pulling speed is a solid line. During the drawing through the pressure per unit of surface area (f φ n φ) is continuously increased. From the mutually assigned values for the surface pressure (f φ n φ) and for the pulling force (f φ z, φ) according to the known formula # # mu = f φ r φ / f φ n φ the of the surface pressure dependent friction properties achieved.