METHOD AND DEVICE FOR TESTING THE QUALITY OF A METALLIC COATING

摘要

The invention relates to a method for determining the quality of a metallic surface of a metallic substrate, especially a steel or steel alloy substrate, and to a device for determining the quality of a metallic surface of a metallic substrate, comprising a mold, a metal sheet holder and a die with which the substrate is shaped in order to produce a drawn test surface. The aim of the invention is to provide a method and a device for testing the quality of the metallic coating with a view to its utilization, especially with a view to its later shaping. For this purpose, the substrate is shaped at least in the area of the test surface, the main and additional shape change of the substrate in the area of the test surface assuming predetermined values that are related to the later utilization of the substrate and the quality of the metallic surface being tested on the test surface after shaping.