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A servo-motor driven active blank holder control system for deep drawing process

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Abstract

A novel active blank holder control system driven by a servo-motor for deep drawing is proposed and designed in this paper. In contrast to most published works utilizing complicated hydraulic systems, this new device has a simpler mechanical structure and ensures more complex blank holder force (BHF) trajectory. An elastomer is employed in this system, and the BHF can be controlled by changing the servo-motor speed actively. To obtain an accurate and robust control performance against punching speed variation, a fuzzy logic controller is developed. Then, the whole control structure is applied to a Matlab real-time workshop to perform the BHF tracking tasks. Finally, experimental hardware is constructed and the constant, sinusoidal, and pulsating BHF trajectory tracking tasks are performed. Conducted results indicate that the proposed system can supply a robust and accurate blank holder force.

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Correspondence to De’an Meng.

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Meng, D., Zhao, S., Li, L. et al. A servo-motor driven active blank holder control system for deep drawing process. Int J Adv Manuf Technol 87, 3185–3193 (2016). https://doi.org/10.1007/s00170-016-8723-0

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  • DOI: https://doi.org/10.1007/s00170-016-8723-0

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