Transactions of Materials and Heat Treatment

Title：Influence of shunting bridge width to extrusion process of aluminum alloy tubes and moulds stress analysis

Authors： PANG Zu-gao WEI Chun-ping LEI Sheng-yuan WEI Jian

Unit： Guangxi University Guangxi Nannan Aluminum Business Company Ltd.

KeyWords： shunting bridge extrusion process numerical simulation stress analysis

ClassificationCode：TG376

year,vol(issue):pagenumber：2010,35(5):137-141

Abstract：

Aiming at the influence of shunting bridge width of aluminum porthole die to extrusion process, the extrusion process for three kinds of shunting bridge width(15,20,25 mm)of 3003 aluminum alloy tubes were simulated by using Deform-3D software .The changes and distributions of the physical variables, such as extrusion load and stress were gained. Simulation results show that the stress distribution is evenest and the uniform flow velocity is best when the shunting bridge width is 25 mm; when it is 20 mm, the regional distribution of mould‘s stress concentration is minimum. Simulation results provide a theoretical guidance for mould design.

Funds：

广西自然科学基金项目（2010GXNSFA013020）

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