Authors:
Alex Wehrli (Osterwalder AG, Switzerland)
Abstract:
Energy cost and overall equipment efficiency have triggered the development of large electric powder compacting presses.Additionally, several OEMs have announced the implementation of stronger regulations in their supply chain with the aim to reduce the grey energy.With the increased complexity and precision of PM parts, hydraulic CNC presses have replaced the mechanical presses. By implementing high|low-pressure systems, fast movement actuators and intelligent pump technology, the energy efficiency was increased, but there remains a very high energy demand compared to the actual net energy required for compacting a part.In this study the energy consumption of hydraulic and electric drive systems for the upper ram and the die of a compacting press is calculated and compared with the actual net energy demand of a compaction part.It will be shown why and by what amount the electric drive outperforms the hydraulic drive when it comes to energy efficiency.
DOI:
https://doi.org/10.59499/WP225367791