Abstract
The forming speed affects the forming operation by (in order of increasing magnitude): inertia effects, metallurgical effects, and tribological effects. Metallurgical effects (strain-rate hardening) can lower the uniform strain in a tensile test but slow down the development of necks. Enhanced formability in true high-speed forming operations however are not caused by strain-rate hardening, but by secondary inertia effects. At extreme speeds the formability can also be increased by viscous drag.
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Reference
S.F. Golovashchenko, Material Formability and Coil Design in Electromagnetic Forming. J. Mat. Eng. and Performance 16(3), 314–320 (2007)
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© 2011 Springer-Verlag Berlin Heidelberg
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Emmens, W.C. (2011). Speed Effects. In: Formability. SpringerBriefs in Applied Sciences and Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-21904-7_11
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DOI: https://doi.org/10.1007/978-3-642-21904-7_11
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Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-21903-0
Online ISBN: 978-3-642-21904-7
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