Transactions of Materials and Heat Treatment

Title：Cylindrical deep drawing test and finite element simulation of 2024 aluminum alloy sheet

Authors： Wang Wei Liu Chun Li Dongsheng

Unit： Shenyang Aerospace University Beihang University

KeyWords： aluminum alloy drawing lug springback finite element

ClassificationCode：TP391.9；TG386

year,vol(issue):pagenumber：2014,39(11):1-5

Abstract：

Based on the Benchmark test scheme of a cylindrical cup deep drawing proposed by the NUMISHEET 2002 conference, the drawing properties, lug behavior, springback phenomenon and thickness variation of 2024 aluminum alloy sheet with 2 mm thickness were researched respectively under 5 and 30 kN blank holder force（BHF）conditions, and the drawing process was simulated by DYNAFORM software. Comparing the test with simulation results, 2024 aluminum alloy is of better drawing properties, and drawing parts have issues such as springback and lugs and uneven change of thickness under two different BHF conditions. Four lugs are produced along the sheet rolling direction 0°, 90°, 180° and 270°, and the maximum springback of transverse sheet rolling direction is 3.14% under low BHF conditions. Drawing force increases with the increasing of punch stroke, and when the punch stroke is 26 mm, the trend of drawing force is flat.

Funds：

国家自然科学基金资助项目（50905008）

王巍（1978-），女，博士研究生，讲师

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