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- Title
Nonisothermal warm deep drawing of SS304: FE modeling and experiments using servo press.
- Authors
Kaya, Serhat
- Abstract
Experimental and viscoplastic finite element analysis (FEA) of thermo-mechanical plastic deformation in nonisothermal warm deep drawing is studied using SS304. A nonisothermal deep drawing tool is used in a servo-motor-controlled press. Drawability window of SS304 under elevated temperatures (25-225 °C) and low to high strain rates (drawing speeds of 2.5, 25, and 50 mm/s) were determined. A viscoplastic thermal material model is adopted for nonwork softening material behaviors, as seen in low-temperature forming of SS304, and found to be easily applicable and quite satisfactory. Tensile and equi-biaxial bulge tests were conducted for more accurate flow stress data to be used in FEA. Measured punch load-stroke and cup's curvilinear thickness (rolling/transverse) curves were successfully compared with predictions from the nonisothermal FE model of the warm deep drawing.
- Subjects
VISCOPLASTICITY; THERMOMECHANICAL properties of metals; MATERIAL plasticity; FINITE element method; THERMAL analysis
- Publication
International Journal of Advanced Manufacturing Technology, 2016, Vol 83, Issue 5-8, p1047
- ISSN
0268-3768
- Publication type
Article
- DOI
10.1007/s00170-015-7620-2