Open AccessValidation of Part Holder Models of Car Body Upper Line Dies for Return Stroke Loads
Author(s) -
M. Burkart,
Mathias Liewald,
Johannes Wied,
C. Kaminsky
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1157/1/012073
Subject(s) - production line , die (integrated circuit) , process (computing) , line (geometry) , sheet metal , acceleration , automotive engineering , engineering , computer science , mechanical engineering , physics , geometry , mathematics , classical mechanics , operating system
In modern press shops, the latest press technology is used to meet today’s efficiency requirements of sheet metal body part production. Thus, for example, servomechanical press ram drives enable optimized process control through configurable motion profiles of the ram, resulting in increased stroke rates and output of the press line. However, the acceleration of moving masses arising during post-forming operations of line dies can lead to critical loads for the upper die and press ram drive. Especially the part holder of line dies causes dynamic loads when being accelerated during the return stroke. In this regard, this paper deals with the validation of dynamic part holder models on the basis of experimental data obtained by a prototype tool. Finally, design specifications could be defined using the validated dynamic models, enabling the process windows of line dies to be extended in future for robust high-speed production processes in modern press shops.