Research and Development > JFE TECHNICAL REPORT > JFE TECHNICAL REPORT No.18- Special Issue on "Steel Products for Energy Industries" and "Steel Sheets for Automotive and Electric Machinery and Appliance" > Development of Press Forming Technologies for Closed Polygonal Cross-section Parts for Automobiles with Light Weight and High Performance

No.18 April 2013 - Special Issue on "Steel Products for Energy Industries" and "Steel Sheets for Automotive and Electric Machinery and Appliance"

Development of Press Forming Technologies for Closed Polygonal Cross-section Parts for Automobiles with Light Weight and High Performance

HIGAI Kazuhiko       SHINMIYA Toyohisa       YAMASAKI Yuji

Abstract

A new press forming technology has been developed for closed polygonal cross-section automotive parts to achieve both the weight reduction and the crashworthiness improvement. The developed press forming method can be performed by conventional mechanical press machines. A front side member model of a flange minimizing closed hexagonal cross-section manufactured by the developed press forming method shows high crashworthiness and stiffness in comparison with conventional hat-shape parts, and weight reduction can be achieved by combination of optimizing a cross-section shape and using high strength steel sheet.

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