| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
FE Simulations of Piercing and Trimming of Al Alloys and AHSS |
| Author(s) |
David Diaz-Infante, Advaith Narayanan, Adam Groseclose, Taylan Altan |
| On-Site Speaker (Planned) |
Taylan Altan |
| Abstract Scope |
For a given sheet material and thickness, the piercing and trimming conditions (punch/die clearance, punch shape, tool corner radii, lubrication, cutting speed, tool wear, and elastic deflection of tool and press) affect the quality of the pierced/trimmed edge and the quality of the subsequent forming or flanging operations. The application of FE simulations to understand the fundamentals of cutting is quite challenging. This is mainly due to inaccuracies in a) determining material properties at high strains, b) effect of cutting speed, c) determining the so-called Critical Damage Value (CDV) that determines the fracture during cutting. The present study aims to illustrate how FE simulations can predict the significant variables in piercing/trimming of an Al alloy 5182-O and an AHSS CP-W 800 with different sheet thicknesses (1.2 mm and 4.0 mm). The results of this study illustrate the difficulties and limitations of FE analysis in predicting piercing/trimming variables. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |