Gutknecht, F.; Gerstein, G.; Traphöner, H.; Clausmeyer, T.; Nürnberger, F.: Experimental setup to characterize flow-induced anisotropy of sheet metals. In: IOP Conference Series: Materials Science and Engineering 418 (2018), Nr. 1, 12085. DOI: https://doi.org/10.1088/1757-899X/418/1/012085
Zusammenfassung: | |
For many metals, a transient variation of the yield stress can be observed when changing the orientation of a load-path. Such behavior affects the manufacturing process itself, e.g. by increasing forming forces, altered material properties or springback of the manufactured components. Hence, the aim of this work is to develop a novel experimental setup to characterize hardening effects due to flow-induced anisotropy for sheet metals. The proposed experiment consists of two subsequent forming operations. Initially, a hydraulic bulge test is conducted, followed by torsion of the hemispherical preformed sheet. Such approach captures the effects of flow-induced anisotropy like cross hardening as could be proved for the example of the conventional deep-drawing steel DC04. The benefits of the presented setup are (i) high plastic strains in the pre-loading step and (ii) determination of several combinations of pre- and subsequent loading. | |
Lizenzbestimmungen: | CC BY 3.0 Unported |
Publikationstyp: | Article |
Publikationsstatus: | publishedVersion |
Erstveröffentlichung: | 2018 |
Die Publikation erscheint in Sammlung(en): | Fakultät für Maschinenbau |
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