from the conferences organized by TANGER Ltd.
Many parts for automobiles and home electric appliances are made of steel sheets. In sheet metal forming processes, the knowledge of technological values, such as yield or tensile strength and r-value, enables a more precise control of processes and results in many benefits such as an improvement in yield efficiency in machining processes and a decrease in loss of material. The current paper shows the possibility of the determination of all considered properties with the use of the Micro-Tensile Test (M-TT) technique. Previously developed and verified testing procedure of M-TTs for bulk materials is applied here for DC01 steel sheet characterization. To assess the applicability of M-TT for sheet characterization, standard and MTT tests were performed in 3 orientations: 0°, 45° and 90°. Moreover, for thickness influence evaluation, micro-specimens were machined with several different thicknesses.
Keywords: Micro-Tensile Test, Digital Image Correlation (DIC), anisotropy, r-value© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.