Transactions of Materials and Heat Treatment

Title：Research on the plastic micro-forming ability of the pure aluminum and LY12 aluminum alloy

Authors： WANG Chun-ju1 SHAN De-bin1 GUO Bin1 SUN Li-ning2 YU Jun-zu1 GENG Chang-gang1 (1School of Material Science and Engineering Harbin Institute of Technology Harbin Heilongjiang 150001 China 2Robot Research Institute Harbin Institute of Technology Harbin h

Unit：

KeyWords： micro-dies evaluation parameters plastic micro forming ability size effect

ClassificationCode：TG306

year,vol(issue):pagenumber：2005,30(1):7-9

Abstract：

Two kinds of micro dies, straight grooved and V-grooved die, are designed and fabricated The half hard pure aluminum and LY12 aluminum alloy are selected as the experimental materials The effect of the width of grooves, forming temperature and the lubricate conditions on the micro-forming ability is investigated using the height of formed rib and ratio of inflowing area as the evaluation parameters The topography of specimen is observed by SEM The results show that the micro-forming ability decreases with decreasing groove width and forming temperature, and it increases with increasing the plastic forming ability When the width of grooves is below 100μm, the ratio of inflowing area falls apparently and the size effect occurs

Funds：

国家863计划MEMS重大专项(2002AA404060,2004AA404260);; 国家自然科学基金 (50275033);; 哈尔滨工业大学跨学科交叉性研究基金 (HIT MD2001 15) 资助项目

Reference：

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