|About this Abstract
||NUMISHEET 2021: The 12th International Conference on Numerical Simulation of 3D Sheet Metal Forming Processes
||Evaluating Lubricants for Warm Forming of Aluminum 6xxx Alloys
||Tom Feister, Hyunok Kim, Laura Zoller, Mehdi Shafiei, Paul Bosler
|On-Site Speaker (Planned)
The success of the warm forming of aluminum alloys without defects is significantly influenced by a preferred forming temperature range as well as reducing die friction during the forming of the pre-heated aluminum blanks. This paper introduces the cup draw testing at different elevated temperatures (200, 240, and 280°C) with two high-strength 6xxx aluminum alloys and three commercially available lubricants. FE simulations were conducted to effectively determine the testing conditions (i.e., temperatures, blank holder force, and the maximum drawing depth), and determine the coefficient of friction inversely by comparing with experiments. One of the tested lubricants showed superior performance regardless of elevated temperatures compared to the other lubricants.
||Definite: At-meeting proceedings