机构地区: 北京科技大学材料科学与工程学院
出 处: 《北京科技大学学报》 2004年第5期538-541,共4页
摘 要: 利用MARC/AutoForge3.1元件,使用三维弹塑性热力耦合有限元方法模拟采用新型油井管用钢33Mn2V热轧制管的双道次张力减径过程,并直观地显示了三维管件材料内部和表面不同方位的金属流动、应力、应变和温度演化情况.模拟结果表明:不论是工件表面还是内部,在张力减径过程中金属流动、应变、应力和温度分布都是不均匀的;分析成品管显微组织时应当考虑这些因素. Using the software MARC/AutoForge 3.1, a three-dimensional thermo-mechanical coupled elasto-plastic Finite Element Method (FEM) was used for the simulation of a two-pass tube tension-reducing process of 33Mn2V steel for oil well tubes. The simulated results intuitionally visualize the metal flow and dynamic evolution of strain, stress and temperature, especially inside the work-piece, and show that their non-uniform spatial distributions on the longitudinal and transverse sections are a distinct characteristic of the tube tension-reducing process.