基于RSM和FEM的辊锻件长度控制技术  

Technology of controlling the length of precision roll forgings based on RSM and FEM

作　　者：周杰[1] 潘成海[1] 黎燕[1] 王元宁 

机构地区：[1]重庆大学材料科学与工程学院,重庆400044 [2]北京传实伟业科技有限公司,北京100102

出　　处：《华中科技大学学报（自然科学版）》2014年第2期68-73,共6页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51275543)

摘　　要：以某钩尾框精密辊锻工艺为研究对象,首次应用响应面法(RSM)和有限元数值模拟法(FEM)对精密辊锻件的长度控制问题进行了研究.首先以满足辊锻件长度和降低轧辊最大扭矩为目标,采用FORGE3有限元软件建立了RSM与FEM相结合的二阶分析模型,研究了轧辊间隙、摩擦因子、轧辊转速和坯料温度对辊锻件的长度和轧辊最大扭矩的显著性和影响规律;其次采用优化后的工艺参数对该辊锻工艺进行了再模拟,提出了辊锻件长度的调试原则,利用该原则和点的反追踪技术对辊锻模具进行了再设计,同时分析了设计、模拟和生产辊锻件的长度和辊锻过程的功率耗散和分布.研究结果表明:应用RSM和FEM可准确有效地掌握精密辊锻件的长度控制技术.Based on the precision roll forging of one coupler yoke ,the key problems of controlling the length of precision roll forgings were researched firstly with response surface method （RSM ） and fi-nite element method （FEM ） .First of all ,in order to meet the appropriate length of roll forgings and reduce the maximum torque of roller ,the second-order analysis model combined RSM and FEM was established in FORGE3 program ,and the influences of roller clearance ,friction factor ,roller speed and billet temperature on the length of roll forgings and the maximum torque of roller were studied . Secondly ,the roll forging was simulated with optimized process parameters ,the principle of debug-ging the length of roll forgings was firstly presented ,the roll forging dies were redesigned using the principle and point anti-tracking technology ,and the lengths of designed ,simulated and produced roll forgings and the power dissipation and distribution in one roll process were analyzed .The contrastive results of optimized simulation and products indicate that using RSM and FEM can accurately and ef-fectively grasp the technology of controlling the length of precision roll forgings .

关 键 词：精密辊锻 响应面法 有限元数值模拟法 反追踪 钩尾框 response surface METHOD (RSM ) FINITE element METHOD (FEM ) 

分 类 号：TG316[金属学及工艺—金属压力加工]