锻压技术

大型筒形件轧制过程中的锻透研究

英文标题：Forging permeability research on large cylinder part in the rolling process

作者：米奕媛刘建生田继红郭丰伟

单位：太原科技大学

关键词：大型筒形件轧制压下量 Deform-3D 锻透

分类号：TG316.3

出版年,卷(期):页码：2014,39(11):43-46

摘要：

随着大型筒形件在重大装备中的核心作用愈加明显，其制造技术愈加重要。轧制技术是大型筒形件成形的重要工艺，为了研究筒形件轧制时压下量和锻透率之间的关系，建立了筒形件轧制的三维有限元模型，并应用有限元分析软件Deform-3D进行数值模拟。通过改变芯辊压下量，分别取芯辊相对进给量为15.9%，17.2%和19.9%进行数值模拟，分析筒形件锻透过程中塑性变形区的分布情况，得到大型筒形件锻透过程中塑性区的分布规律及芯辊压下量对筒形件锻透的影响规律。根据与经验法则所计算出的锻透深度进行对比得知，相对进给量为19.9%时筒形件实现完全锻透，这一结论与经验法则的判断一致，说明经验法则能够有效地判断大型筒形件轧制过程中的锻透性。

As the core role of large cylindrical parts in major equipment is more and more obvious, the manufacturing technology becomes more and more important. Rolling technology is a key process of large cylindrical parts forging. In order to study the relationship between the reduction and permeability rate during cylindrical rolling, a three-dimensional finite element model of rolling cylindrical parts was built, and the numerical simulation was carried on by finite element analysis software Deform-3D. By changing the reduction of core roll，the numerical simulations with different relative feeds of 15.9%,17.2% and 19.9% for core roll were done respectively, and the distribution of deformation area during the process of cylindrical parts forging permeability was analyzed. Then the distribution of deformation area and the effect of reduction of core roll on cylinder part permeability during the process of large cylindrical parts forging permeability were obtained. By comparing with the forging penetration depth calculated by rule of thumb, the cylinder parts can be forged thoroughly when the relative feed is 19.9%, which is consistent with the conclusion gotten by rule of thumb. Therefore, it is stated that the rule of thumb can be used for judging the large cylinder forging permeability in the rolling process effectively.

基金项目：

山西省自然科学基金资助项目（2013011022-3）；山西省研究生优秀创新项目（20123101）；山西省2013年国家级&省级大学生创新创业训练计划（201310109004，2013232）；太原科技大学大学生创新创业训练项目（xj2012021,xj2013072）

米奕媛（1988-），女，硕士研究生刘建生（1958-），男，博士，教授，博士生导师

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