Transactions of Materials and Heat Treatment

Title：Numerical simulation of microstructure on surface of roll forming sheet

Authors： Hu Zhiqing Wang Bo Wang Wei Xun Chen

Unit： Jilin University Liverpool John Moores University

KeyWords： sheet metal forming rolling forming microstructure numerical simulation

ClassificationCode：TG306

year,vol(issue):pagenumber：2014,39(2):63-67

Abstract：

Roll forming microstructure process is coupling with traditional rolling technology and micro-extruding technology. This technology mainly copys the microstructure onto the surface of roller, and then the microstructure on the roller is duplicated on the aluminum sheet. Numerical simulation was used to model the roll forming of microstructure process, and the effect of forming stage and temperature on the forming force at different temperatures of 90，120 and 150 ℃ was analyzed. The results show that there is large plastic deformation concentrated on the subcutaneous sheet, the max value of strain distributes on the bottom of groove, and there is almost not strain on the medium and bottom of sheet. In the meantime, with the increasing of temperature, the load in the stable forming stage decreases. The correlation experimental part was done, and the measure was shown on the local of experimental parts.

Funds：

国家自然科学基金资助项目（51275201，50905072）；国际合作与交流项目（51311130129）

胡志清（1974-），男，博士，副教授

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