About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Forming and Joining of Advanced Sheet Metal Materials
|
| Presentation Title |
A Method for Optimising Ram Movement During Deep Drawing Aiming to Improve Part Quality by Ideal Friction Conditions |
| Author(s) |
Lukas Hauser, Kim Rouven Riedmüller, Mathias Liewald |
| On-Site Speaker (Planned) |
Lukas Hauser |
| Abstract Scope |
Producing high-quality car body parts with complex geometries and tight manufacturing tolerances requires advanced sheet metal forming strategies, enabled by servo press technology. In modern press shops, freely programmable ram movement profiles of servo presses are currently used to shorten cycle times. However, scientific studies showed that maximum drawing depth of certain part geometries can be produced by adapted ram movement. Therefore, this article presents a method for optimizing the ram movement, taking into account velocity-dependent friction coefficients acting in the drawing die. To prevent failure due to cracking or wrinkling, stepwise numerically optimized ram speeds are determined for a sheet metal part using finite element simulations, considering dynamic friction coefficient tables and a constant blank holder force. The optimization method is then applied to parts made of DP500 and EN AW-6014. The results show significantly improved part quality by the optimized ram movement profiles compared to conventional sinusoidal profiles. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Mechanical Properties, |