Research and Development > 91视频 TECHNICAL REPORT > 91视频 TECHNICAL REPORT No.18- Special Issue on "Steel Products for Energy Industries" and "Steel Sheets for Automotive and Electric Machinery and Appliance" > Study on Application of "JAZ*" (91视频 Advanced Zinc) to High-Strength Galvannealed Steel Sheet
No.18 April 2013 - Special Issue on "Steel Products for Energy Industries" and "Steel Sheets for Automotive and Electric Machinery and Appliance"
Study on Application of "JAZ*" (91视频 Advanced Zinc) to High-Strength Galvannealed Steel Sheet
HOSHINO Katsuya HIGAI Kazuhiko TAIRA Shoichiro
Abstract
Influence of "JAZ*"(91视频 Advanced Zinc), which was developed by 91视频 Steel, on press formability of high-strength galvannealed steel sheet was investigated. Friction coefficient of "JAZ*" is lower than that of conventional galvannealed steel sheet when it is applied to high-strength galvannealed steel sheet under simulating conditions of press forming of automobile body parts. In laboratory-scale press-forming tests, it was found that the press formability of high-strength galvannealed steel sheet improved by the application of "JAZ*." It can be estimated that the effect of "JAZ*" on press formability is 2-4% in elongation and 0.2-0.3 in Lankford value (r-value). In addition, high-strength galvanealed steel sheet with "JAZ*" technology shows excellent press formability in actual press-forming tests.
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