Evaluation of Press Formability Using Servo Die Cushion in Deep Drawing

Akihiro Watanabe; Yuji Kotani; Hisaki Watari; Takehiro Shimizu

doi:10.4028/www.scientific.net/MSF.654-656.322

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Effects of Alloying Elements on Mechanical Properties in Hyper-Eutectoid Steel Wires
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Evaluation of Press Formability Using Servo Die Cushion in Deep Drawing
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Aluminide Coating Formation on Hot Press Forming Steels
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Influence of Thermal History on Microstructure and Mechanical Properties of Steels for Hot Stamping
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HomeMaterials Science ForumMaterials Science Forum Vols. 654-656Evaluation of Press Formability Using Servo Die...

Evaluation of Press Formability Using Servo Die Cushion in Deep Drawing

Abstract:

Manufacturing process using servo press machines have been highlighted in car manufacturers and other industries in Japan. It is necessary to establish an appropriate press working conditions for manufacturing highly accurate products with great extra value. Our aim is to investigate into effects of variable BHF (blank holding force) on press formability, comparing to using a conventional press machine. In this study, FEM analyses of deep drawing process using a variable BHF system has been conducted to demonstrate the effectiveness of a servo die cushion on formability. According to experimental results obtained with a servo die cushion, it is found that maximum load subjected to dies was reduced by 11.8 %, when using a servo press with a servo die cushion comparing to a conventional press.

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Periodical:

Materials Science Forum (Volumes 654-656)

Pages:

322-325

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.654-656.322

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Online since:

June 2010

Authors:

Akihiro Watanabe, Yuji Kotani, Hisaki Watari, Takehiro Shimizu

Keywords:

Formability, Servo Die Cushion, Servo Press, Variable Blank Holding Force

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