Transactions of Materials and Heat Treatment

Title：Basic study on application of constant volume flux in flow-front during thixoforging

Authors： WANG Kai-kun1 2 LI Hong-gao3 ZHANG Peng1 DU Yan-mei1(1.School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China 2.Department of Mechanical Engineering Tsinghua University Beijing 100084 China 3.East-Chi

Unit：

KeyWords： thixo-forging flow-front constant volume flux of slurry die optimization

ClassificationCode：TG316

year,vol(issue):pagenumber：2008,33(4):112-115

Abstract：

Semi-solid forming is a new metal forming technology between conventional diecasting and forging.With an aim to solve the long-term existing problem of the cracks in flow-front during thixo-forging,a new theory of constant volume flux of slurry was put forward in optimizing die design.Two kinds of experiments of semi-solid step-extrusion and die-upsetting were carried out with flat-forging die and angled forging die from die optimization.The experimental results show that the flow-fronts with better quality can be achieved by using the optimized forming die from constant volume flux of slurry.Therefore,the theory of constant volume flux of slurry can provide an important guidance for the quality improvement in products from thixo-forging.

Funds：

北京市自然科学研究基金(2072012);; 国家863研究计划(2007AA03Z119);; 华中科技大学材料成形与模具技术国家重点实验室开放基金(07-05)

Reference：

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