METHOD FOR DETERMINING MATERIAL PROPERTIES OF A WORKPIECE BY AUDIO ANALYSIS OF WORKPIECE MACHINING, AND PUNCHING MACHINE AND COMPUTER PROGRAM PRODUCT

摘要

The method according to the invention for determining at least one material property of a workpiece (2) arranged in a punching machine (1), in particular for determining workpiece material and/or workpiece thickness, comprises the following method steps: - machining the workpiece (2) by executing at least one stroke movement of a tool (3) of the punching machine (1), - recording the machining noises and/or workpiece vibrations generated during the machining of the workpiece (2), and determining the at least one material property of the workpiece (2) by comparing the recorded machining noises and/or workpiece vibrations with reference machining noises and/or reference workpiece vibrations that have been recorded when machining reference workpieces having known material properties.