母线为抛物线形管无模拉伸速度控制的数学模型  

Mathematical Model of Dieless Drawing Speed Control for Parabolic Pipe

作　　者：夏鸿雁[1] 吴迪[2] 

机构地区：[1]沈阳大学机械工程学院,辽宁沈阳110044 [2]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110004

出　　处：《沈阳大学学报（自然科学版）》2012年第3期22-26,共5页Journal of Shenyang University：Natural Science

基　　金：国家自然科学基金资助项目(50672060);国家重点实验室开放课题基金(201101);沈阳大学博士启动基金

摘　　要：在分析抛物线形管无模拉伸变形机制的基础上,提出了抛物线形管无模拉伸速度的理论计算方法,并给出了用于确定抛物线形管无模拉伸速度控制的数学模型,为精确控制变断面管件的形状、实现无模拉伸速度微机控制奠定基础.实验结果表明,所建立的速度模型较好地表达了抛物线形管无模拉伸速度变化规律,采用该方法所获得的加工件,实际外形尺寸与理论外形尺寸吻合较好,最大误差为6.7%,可用于确定抛物线形管无模拉伸速度.Base on the analysis of deformation mechanism of parabolic pipe via dieless drawing process, the calculation method of dieless drawing speed during pipe forming was proposed theoretically with a relevant mathematical model given. The study provided the basis for microcomputer control of dieless drawing speed, in order to control the shape and dimensions accurately. Experimental investigation results show that the mathematical model indicated variation of dieless drawing speed quite well. The relative errors of parabolic pipe between calculation results by model and experiment results were less than 6.7%, and it was available to schedule dieless drawing speed for parabolic pipe.

关 键 词：金属柔性成形 抛物线形管无模拉伸 拉伸速度 微机控制 数学模型 

分 类 号：TG356.5[金属学及工艺—金属压力加工]