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has been cited by the following article:

• TITLE: Blank Holder Force Control System Driven by Servo-Motor

  AUTHORS: Siji Qin, Li Yang, Bing Yang

  KEYWORDS: Metal Forming, Blank Holder Force, BHF Control Driven by Servo-Motor, Six-Bar Linkages

  JOURNAL NAME: Intelligent Control and Automation, Vol.2 No.4, November 4, 2011

  ABSTRACT: Blank holder force (BHF) control is used to prevent wrinkles of sheet metal in deep drawing process. Based on a novel conception of BHF control technique driven by servo-motor, a new BHF device with six-bar linkage mechanism has been designed and manufactured. Whole control system of the new BHF technique was developed, and the basic structure of the hardware configuration of the system was given. Software analysis, implementation and division of the functional modules have been done. Also, the control software in data acquisition and processing module has been developed in the relevant technology of the BHF control system for the requirements of real-time, stability and accuracy. By the new BHF device combined with the hardware and the software system, the BHF can be regulated accurately variation with the predefined BHF profile in deep drawing process.