三维非轴对称管件缩径旋压成形工艺研究  

Research on neck-spinning process of 3D non-axisymmetric tubes

作　　者：程秀全[1] 夏琴香[2] 

机构地区：[1]广州民航职业技术学院,广东广州510403 [2]华南理工大学机械工程学院,广东广州510640

出　　处：《轻合金加工技术》2006年第8期30-33,共4页Light Alloy Fabrication Technology

基　　金：国家自然科学基金项目(50275054);;广东省自然科学基金项目(020923);广东省工业科技攻关计划项目(2003C102013)

摘　　要：以铝质汽车排气歧管为研究对象,探讨了热处理工艺规范、名义压下量、进给比、旋轮运动轨迹等对三维非轴对称偏心及倾斜件多道次缩径旋压成形工艺的影响,通过选择合理工艺参数及旋轮运动轨迹,研制出合格的汽车排气歧管样件。研究结果表明,与冲焊结构相比,采用旋压技术来生产汽车排气歧管,可将缩管率由35%左右提高到60%以上,使零件的加工工序数由26个减少到2个,可以显著降低产品的生产成本和提高产品的生产效率。The influences of forming parameters, such as specification of heat treatment, nominal reduction of blank radius, feed ratio and roller track, on multi-pass neck-spinning of aluminum exhausted pipe used in vehicle are researched, and sound exhausted pipes are developed by selecting reasonable processing parameters and roller tracks. Comparing manufacturing by stamping and welding, the percentage of reduction of tube radius is increased from 35% to more than 60%, the processing number is decreased from 26 to 2, therefore, the cost of production reduces and productivity increases remarkably.

关 键 词：旋压 排气歧管 偏心件 倾斜件 工艺参数 

分 类 号：TG376[金属学及工艺—金属压力加工]