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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 cylinders in major equipment becomes more apparent, the manufacturing technology becomes even more important. Rolling technology is an important process for forming large tubular parts. In order to study the relationship between the reduction of the tubular part rolling and the rate of forging, a three-dimensional finite element model of the cylindrical part rolling is established. The finite element method Analysis software Deform-3D for numerical simulation. By changing the amount of mandrel roll, the relative feed rate of core roll was respectively 15.9%, 17.2% and 19.9%, and the distribution of plastic deformation zone in the process of forging barrel was analyzed. Large cylindrical forging Through the distribution of plastic zone in the process and the influence of mandrel roll on the forging of cylindrical parts. Comparing with the depth of forging calculated by the rule of thumb, it is found that the complete forging of the barrel is achieved when the relative feed rate is 19.9%. This conclusion is consistent with the rule of thumb, indicating that the rule of thumb can effectively judge whether the large Forging Permeability During Rolling of Tubular Parts.