| 制动梁架整体成形工艺开发与技术实现 |
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| 引用本文： | 陈锡侯,王梦寒,门正兴,温雪峰.制动梁架整体成形工艺开发与技术实现[J].重庆大学学报(自然科学版),2008,31(11):1247-1250. |
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| 作者姓名： | 陈锡侯 王梦寒 门正兴 温雪峰 |
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| 作者单位： | [1]重庆工学院电子信息与自动化学院,重庆400050 [2]重庆大学机械工程学院,重庆400030 [3]重庆重型铸锻厂,重庆400083 |
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| 基金项目： | 国家科技攻关重大项目
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| 摘 要： | 为满足铁路货车运输对新型制动梁架产品性能的要求,在分析了制动梁架产品结构特点的基础上,提出了采用"模锻拉制"工艺成形制动梁架的新方法.对不同设计参数下制动梁架模锻预成形过程和拉制成形过程进行有限元模拟,获得了制动梁架预成形模的优化截面形状,发现金属局部"回流"是拉制过程中产生缩颈缺陷的主要原因,并据此确定拉制成形的最佳速度范围为87～96 mm/s.生产试制及产品检验表明,采用"模锻拉制"工艺成形整体结构的新型制动梁架是可行的.
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| 关 键 词： | 制动梁架 模锻 预成形设计 拉制 有限元仿真 |
forming process planning and technology realization of the monoblock break beam frame |
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| CHEN Xi-hou,WANG Meng-han,MEN Zheng-xing,WEN Xue-feng.forming process planning and technology realization of the monoblock break beam frame[J].Journal of Chongqing University(Natural Science Edition),2008,31(11):1247-1250. |
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| Authors: | CHEN Xi-hou WANG Meng-han MEN Zheng-xing WEN Xue-feng |
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| Institution: | CHEN Xi-hou1,WANG Meng-han2,MEN Zheng-xing2,WEN Xue-feng3(1.College of Electronic Engineering,Chongqing Institute of Technology,Chongqing 400050,P.R.China,2.College of Mechanical Engineering,Chongqing University,Chongqing 400030,3.Chongqing Heavy Duty Casting , Forging Plant,Chongqing 400083,P.R.China) |
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| Abstract: | In order to meet the performance demands of train lorry,a die forging-drawing method based on structure features analysis was proposed to form the L-A break beam frame.The finite element method was used to simulate a series of die-forging processes and the drawing processes with different parameters.The optimum cross-section shape of the performing die was obtained from these simulation results.It is found that local back-flow of the metal is the primary cause of necking defects in drawing.Furthermore,the b... |
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| Keywords: | break beam frame die forging performing design drawing finite element method simulation |
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