锻压技术

镁合金汽车轮毂塑性成形研究

英文标题：Study on plastic forming of magnesium alloy automobile wheels

作者：杨永顺郭俊卿陈拂晓

单位：河南科技大学

关键词：镁合金轮毂塑性成形模具

分类号：TG76；TG37

出版年,卷(期):页码：2011,36(4):20-22

摘要：

针对一种镁合金汽车轮毂，研究了该零件的结构工艺性，制定了复合挤压和刚性扩口的两步塑性成形工艺方案，设计了简单高效的成形模具，进行了精密挤压成形试验。试验表明：新技术工艺简单、设备和模具投入少；复合挤压变形抗力小于140 MPa，扩口工艺的压力不足20 kN，可以明显减小设备能力和模具尺寸；制件壁厚均匀、尺寸精度较高，只需少量的表面加工，即可获得合格的产品。

For one kind of magnesium alloy automobile wheels, the structure processing was studied. A twostep plastic forming project was proposed including combined extrusion and rigid flaring. The simple and efficient forming dies were designed for the precision extrusion experiments. The research demonstrates that the new technology has the advantages of simple process and less input in equipments and dies. The deformation resistance of combined extrusion is less than 140 MPa, and the pressure in flaring process is less than 20 kN, and which leading to the equipment tonnage and the mould size decrease obviously. The product has high dimension accuracy with uniform wall thickness. And qualified products can be obtained with a small amount of surface machining.

基金项目：

河南省科技攻关项目（072102230007）；西北工业大学凝固技术国家重点实验室开放课题（SKLSP201008）

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