A New Modelling of Blanking for Thin Sheet in Copper Alloys with Dynamic Recrystallization

Journal Article · Thu May 17 00:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2740881· OSTI ID:21061737

Touache, A; Thibaud, S; Chambert, J; Picart, P ^[1]

---

1. Universite de Franche-Comte, Institut FEMTO-ST - UMR 6174, Laboratoire de Mecanique Appliquee R. Chaleat, 24 rue de l'Epitaphe, 25000 Besancon (France)

Precision blanking process is widely used by electronic and micromechanical industries to produce small and thin components in large quantities. To take account of the influence of strain rate and temperature on precision blanking of thin sheet in copper alloys, we have proposed a thermo-elasto-visco-plastic modelling. In addition, dynamic recrystallization takes place in Cual copper alloy during the blanking process of thin sheet. A new modelling of dynamic recrystallization based on the thermodynamics of irreversible processes is presented. Blanking simulations of Cual copper sheet are carried out in order to analyze the softening effect induced by dynamic recrystallization.

• OSTI ID: 21061737
• Journal Information: AIP Conference Proceedings, Vol. 908, Issue 1; Conference: NUMIFORM 2007: 9. international conference on numerical methods in industrial forming processes, Porto (Portugal), 17-21 Jun 2007; Other Information: DOI: 10.1063/1.2740881; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COMPUTERIZED SIMULATION
COPPER
COPPER ALLOYS
IRREVERSIBLE PROCESSES
NUMERICAL ANALYSIS
PLASTICITY
RECRYSTALLIZATION
STRAIN RATE
THERMODYNAMICS
THERMOELASTICITY