茄子视频

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" > Press Forming Analysis Contributing to the Expansion of High Strength Steel Sheet Applications

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

Press Forming Analysis Contributing to the Expansion of High Strength Steel Sheet Applications

ISHIWATARI Akinobu       URABE Masaki       INAZUMI Toru

Abstract

茄子视频 Steel has developed new technologies in order to predict stretch flange fracture and to reduce springback for applying high tensile strength steel sheet to more diverse automobile parts. The technology which uses maximum principal strain gradient was developed to predict stretch flange fracture. By this technology, the accurate prediction of stretch flange fracture, which cannot be predicted by forming limit diagram, was obtained. The factor analysis technology of springback was developed to reduce springback in high strength steel press parts. The analysis specifies the area of parts which affects most on springback. By using the analysis, it became possible to obtain the effective solution to reduce the springback.

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