φ70～80轴承钢棒材轧制过程的孔型设计及三维模拟  

Pass Design and 3D Simulation for the Rolling Process of φ70-80 Bearing Steel Rod

作　　者：岳重祥[1] 张立文[1] 阮金华[1] 

机构地区：[1]大连理工大学材料科学与工程学院,辽宁先进连接技术重点实验室,辽宁大连116085

出　　处：《材料工程》2011年第2期60-64,共5页Journal of Materials Engineering

基　　金：大连市优秀青年科技人才基金项目(2001-122)

摘　　要：开发了采用300mm方坯生产φ70~80mm规格GCr15轴承钢棒材的孔型系统。利用有限元软件MSC.Marc,建立了该生产过程的三维有限元模型。借助MSC.Marc软件的二次开发功能,将GCr15钢的微观组织演变模型与轧制过程的热力耦合有限元模型相结合,预测了该生产过程中的轧制力、轧件变形情况及轧件内部温度、应变、应变率与奥氏体晶粒尺寸的演变情况,实现了棒材实际轧制前的计算机虚拟轧制。A pass system to produce φ70-80 bearing steel rod by using 300mm billet was developed.With the aid of software MSC.Marc and its user subroutine,3D FE models for the rolling process coupled with the microstructure evolution model of GCr15 steel were established to simulate the deformation of rolled piece and the rolling force at every pass.Meanwhile,the evolutions of temperature,strain,strain rate and austenite grain size in the rolled piece were obtained.The work realized the virtual computer rolling before practical rolling of rod.

关 键 词：棒材 孔型设计 虚拟轧制 组织演变 

分 类 号：TG332[金属学及工艺—金属压力加工] TG335.6