Analysis of plastic penetration in process of groove ball-section ring rolling
Analysis of plastic penetration in process of groove ball-section ring rolling
复制标题
槽型球截面环件轧制过程中的塑性渗透分析
DOI：
10.1007/s12206-008-0308-x
复制
发表时间：
2008-07-01
影响因子：
1.6
通讯作者：
Pan, L. B.
中科院分区：
文献类型：
--
作者：
Hua, L.;Qian, D. S.;Pan, L. B.
塑性渗透是环件轧制成形的必要条件。基于槽型球截面环件轧制的原理和塑性渗透的特点，在ABAQUS软件环境下建立了球槽型环件塑性渗透的三维有限元分析模型。首次确定了影响塑性区穿透行为的决定性因素，即塑性区穿透速度。通过三维数值模拟，揭示了塑性渗透过程中塑性区的分布规律。通过研究不同成形环径向厚度和进给速度条件下塑性区的扩散规律，得出成形环径向厚度和进给速度对塑性熔深的影响规律。最后，总结出了孔型球截面环件轧制塑性穿透的必要条件，并通过实验和模拟进行了验证。研究结果清晰地揭示了孔型球截面环件轧制的塑性渗透规律，对工艺设计和生产具有一定的指导意义。
Plastic penetration is a necessary condition of ring rolling forming. In this paper, based on the principle of groove ball-section ring rolling and characteristics of plastic penetration, a three dimensional (3D) finite element (FE) analysis model for the plastic penetration of ball groove-section ring is established under the ABAQUS software environment. A decisive factor for plastic penetration behavior, namely the penetration speed of plastic zone, has firstly been ascertained. The distribution pattern of the plastic zone in the process of plastic penetration is revealed by 3D simulation. By researching the diffusion rules of the plastic zone under the conditions of different ring radial thickness and feed speed, the influences of ring radial thickness and feed speed on plastic penetration are obtained. Lastly, the necessary condition for the plastic penetration of groove ball-section ring rolling is summarized, and is validated by experiment and simulation. The achievements of this study expressly reveal the plastic penetration rules of groove ball-section ring rolling, and it’s useful for technology design and production.