Abstract
	A simple laboratory test, performed by rolling of the wedge-shaped sample on plain rolls, enables to investigate the structure-forming processes and formability of metallic materials effectively, thanks to its ability to implement a wide range of height reductions in a single sample. The formed material’s spread induces tensile stresses at the sample’s lateral faces, which can yield in cracking. This method is very suitable for comparison of rollability of some materials with lower. Mathematical processing of the wedge rolling test’s results is complicated due to an irregular shape of the rolled stock. Hence the developed software represents an universal instrument for mathematical processing of results of the discussed test, which works reliably and independently on complexity of shape of the final rolled product. It is valid also in the case when the initial sample for the wedge rolling test is provided with notches of V shape, milled in the vertical direction on a lateral surface. These notches function as initiators of cracks and make it possible to better compare plastic properties of miscellaneous metallic materials. Deformation behaviour of the material close to these notches was subjected to FEM analysis by means of program FORGE 2005. The simulation confirmed an increased share of tensile stresses on the face of the notch and susceptibility to crack formation. At the same time the formation of laps during drawing the notch into the roll gap was confirmed. Knowledge gained by calculation are in full accordance with behaviour of the samples rolled in a laboratory rolling mill.