Implementation of an Electro-Hydraulic Drive Unit with Two Control Variables in a Drawing Cushion Application

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Willy Reichert - , Fraunhofer Institute for Machine Tools and Forming Technology (Author)
  • Alexander Leonhard - , Parker Hannifin Corporation (Author)
  • Thomas Päßler - , Fraunhofer Institute for Machine Tools and Forming Technology (Author)
  • Robin Kurth - , Fraunhofer Institute for Machine Tools and Forming Technology (Author)
  • Steffen Ihlenfeldt - , Chair of Machine Tools Development and Adaptive Controls, Fraunhofer Institute for Machine Tools and Forming Technology (Author)

Abstract

Forming machines and their subsystems, e.g., the drawing cushion in sheet metal-forming machines, pose high power as well as precision requirements in both the positioning and the force, which are directly linked to the quality of the produced part. In addition to ensuring quality, energy efficiency becomes increasingly important. The first step towards energy efficiency is utilizing direct drives, which reduce the energy consumed by the machine significantly, compared to valve-controlled applications. Additional potential for energy loss reduction lies in the implementation of a direct drive unit with the two control variables, motor speed and displacement volume. The control variable distribution results in an influence on the dynamics of the system. This influence is studied in this paper.

Details

Original languageEnglish
Article number18
JournalEngineering Proceedings
Volume2022
Issue number26(1)
Publication statusPublished - 2022
Peer-reviewedYes

Keywords

Sustainable Development Goals

Keywords

  • digital manufacturing system, digital twin, energy efficiency, forming, quality