CHARACTERIZATION OF STEEL SHEET PROPERTIES USING MICRO-TENSILE TEST AND DIC METHOD

1 KONOPÍK Pavel
Co-authors:
1 DŽUGAN Jan 1 RUND Martin 1 PROCHÁZKA Radek
Institution:
1 COMTES FHT a.s., Průmyslová 955, 334 41 Dobřany, Czech Republic, pavel.konopik@comtesfht.cz
Conference:
27th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 23rd - 25th 2018
Proceedings:
Proceedings 27th International Conference on Metallurgy and Materials
Pages:
609-614
ISBN:
978-80-87294-84-0
ISSN:
2694-9296
Published:
24th October 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
32 views / 10 downloads
Abstract

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
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