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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-08: Incremental Forming
Presentation Title Numerical Analysis of the Complex Loading Path during Tube Flow Forming Processes
Author(s) Marie-Anne Vidal, Pierre-Olivier Bouchard, François Frascati, Jean-Pierre Mallet, Katia Mocellin
On-Site Speaker (Planned) Marie-Anne Vidal
Abstract Scope Thin-walled tubes can be produced using different forming processes. The pros of flow forming are the good mechanical properties resulting from strain hardening induced by the process. It allows lightened structures by using flow-formed tubes having the same mechanical characteristic as heavier tubes produced differently, and there is no material waste. The cons are a complex loading path during the process, involving simultaneously tension, compression and shear. The design of new industrial parts is yet only based on the empirical knowledge of the technician. Therefore, modeling the process is the key for defining optimal process conditions rapidly without additional development costs for a large range of materials. However, understanding the mechanics of tubes flow forming is essential for a correct modeling of the material behavior during the process. This study focuses on the influence of both numerical and experimental parameters (such as time step, meshing settings, friction, and feed rate) on ductile fracture in numerical simulation of a three-roller tube flow forming operation. The validation of such simulations requires experimental data. Flow forming experiments with different process parameters are therefore performed on a laboratory tube flow forming device developed in CEMEF to compare the influence of those parameters on the flow formability of tubes. Results on an industrial flow forming machine and on the laboratory flow forming device will also be compared.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

An Approach to Improve Thickness Distribution and Formability in Incremental Sheet Forming Process through Improved Blank Design
Analysis of Stress Triaxiality on the Formability of Hole-flanged Parts by SPIF
Bi-diectional Contour Tool Path Scheme to Eliminate Twist during Incremental Sheet Forming
Double-sided Incremental Forming of Periodic Structures with Free Edges
Effect of Feed Rate and Tool Material on the Formability of Single Point Incremental Forming of Copper
Effect of Hardening Law on Finite Element Simulation of Single Point Incremental Forming (SPIF) of 7075 Aluminum Alloy Sheet
Effect of Plastic Anisotropy on Failure Prediction during Incremental Sheet Forming of AA6061 Alloy
Experimental and Finite Element Investigation of Wrinkling during Spinning of a Thin-walled Tube
FEM Simulation for the Single Point Incremental Forming of CFRP Prepreg
Finite Element Simulation Analysis of Thermoelectric Coupling during Pure Titanium Electro-assisted Spinning
Improving the Accuracy of Finite Element Models in Double-Sided Incremental Forming by Quantifying the Effects of Mass Scaling on the Forming Mechanics
Numerical Analysis of the Complex Loading Path during Tube Flow Forming Processes
Numerical Study of Formability and Failure Prediction in Shrink and Stretch Flanging by SPIF
Revisiting Micro-mechanical Damage Characterization for Single Point Incremental Forming Process

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