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Conference Tools for NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes
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Meeting NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes
Symposium S-07: Computational Modelling of Scaled Processes and Experiments
Presentation Title Material Optimisation for Scaled Physical Modelling of Hot Forging Processes
Author(s) Bhaskaran Krishnamurthy, Olga Bylya, Keith Davey
On-Site Speaker (Planned) Bhaskaran Krishnamurthy
Abstract Scope Historically, physical modelling was a very important approach for the solving of complex mechanical problems. However, in spite of the significant success of physical modelling in aerodynamics and hydrodynamics, its application to hot forging processes remains challenging. The principal source of difficulty is the significantly functional and nonlinear viscoplastic behaviour that materials undergo during the hot forging process. A question of some importance, which is addressed in this paper, is whether it is possible that physically different materials can exhibit similar mechanical behaviour under certain conditions? Some evidence exists; for example, known experiments with lead that simulate superplastic behaviour at room temperature. This paper examines the possibility that material twins exist at least to some degree of accuracy for those ranges of temperature and strain rates that are representative of forging processes. Presented is a methodology for selecting material twins and the quantification of errors involved and its effect on scaled experimentation.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Anisotropic Scaling in Metal Forming
Exact and Inexact Multiple-scaled Models for Hot Forging: Part I Theory
Exact and Inexact Multiple-scaled Models for Hot Forging: Part II Experimental
Finite Similitude in Dynamic Powder Compaction
Material Optimisation for Scaled Physical Modelling of Hot Forging Processes
Multi-scale Friction Modeling of Coated Steels for Sheet Metal Forming Applications
Scaling of High Speed Chip Formation
Study on micro-deformation and hardening behavior of DP steel based on CMSG plasticity model

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