大型直缝焊管JCO成形工艺参数优化设计  

OPTIMIZATION ON JCO FORMING OF LARGE DIAMETER WELDING PIPE

作　　者：白图娅[1] 范利锋[2] 闫嘉昕[3] 高颖 王斌 云建斌 

机构地区：[1]内蒙古化工职业学院,呼和浩特010070 [2]内蒙古大学交通学院,呼和浩特010070 [3]河北科技大学材料科学与工程学院,石家庄050018 [4]内蒙古质量技术检验研究院,呼和浩特066004

出　　处：《机械强度》2016年第3期495-501,共7页Journal of Mechanical Strength

基　　金：内蒙古大学高层次人才引进项目(135143);内蒙古高等学校科学研究项目(NJZY14006);内蒙古自然科学基金项目(2014BS0502);河北省高等学校科学技术研究青年基金项目(Y2012035)资助~~

摘　　要：大型直缝焊管JCO成形法在很多国家得到了广泛的应用。但JCO成形过程弯曲变形次数较多,生产效率低下,严重制约JCO成形技术的进一步发展。因此,在确保焊管成形质量的前提下减少生产工步、提高生产效率是目前亟需解决的关键问题。通过有限元分析技术和实验研究等相互结合的方法,分析焊管JCO成形过程;采用响应面技术,实现关键成形技术参数和焊管成形质量的预测;通过对JCO成形技术参数进行优化设计,实现减少加工工序、提高生产效率这一目标,这对于提高我国JCO成形技术水平具有重要意义。JCO forming is widely used in production of large diameter submerged-arc welding pipes. However,more total number of bending deformation and low production efficiency of JCO forming have been the bottleneck problem that restricts the further development. To resolve this problem,this study investigates JCO forming process by multi-objective optimization. JCO forming is simulated using the FE code ABAQUS and the FE model is validated experimentally. A response surface method based on the radial basis function is used to construct a surrogate model; the genetic algorithm NSGA-II is adopted to search for Pareto solutions; and grey relational analysis is used to determine the most satisfactory solution from the Pareto solutions. The obtained optimal design of parameters shows good agreement with the initial design and remarkably improves the JCO forming quality.Thus,the results of this study provide an effective approach for improving production efficiency and reducing total number of bending deformation in JCO forming.

关 键 词：大口径直缝焊管 JCO成形 径向基函数 遗传算法 灰色系统理论 

分 类 号：TG386.3[金属学及工艺—金属压力加工]