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五轴数控加工模拟制造技术
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作者 王宇 王雷 +1 位作者 刘明雪 王佳音 《城市轨道交通研究》 北大核心 2019年第2期141-144,共4页
以当前五轴数控加工模拟制造领域最为成熟的计算机辅助软件NX为载体,在国内外虚拟制造技术领域最新成果的基础上,结合普遍应用于企业生产的五轴数控加工,提出了一套体系完整、应用广泛的五轴数控加工模拟制造技术。该技术涵盖自动编程... 以当前五轴数控加工模拟制造领域最为成熟的计算机辅助软件NX为载体,在国内外虚拟制造技术领域最新成果的基础上,结合普遍应用于企业生产的五轴数控加工,提出了一套体系完整、应用广泛的五轴数控加工模拟制造技术。该技术涵盖自动编程技术、加工仿真技术和后处理技术。 展开更多
关键词 五轴数控加工 模拟制造技术 自动编程 加工仿真
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Numerical simulation and experimental investigation of incremental sheet forming process 被引量:4
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作者 韩飞 莫健华 《Journal of Central South University of Technology》 EI 2008年第5期581-587,共7页
In order to investigate the process of incremental sheet forming (ISF) through both experimental and numerical approaches, a three-dimensional elasto-plastic finite element model (FEM) was developed to simulate the pr... In order to investigate the process of incremental sheet forming (ISF) through both experimental and numerical approaches, a three-dimensional elasto-plastic finite element model (FEM) was developed to simulate the process and the simulated results were compared with those of experiment. The results of numerical simulations, such as the strain history and distribution, the stress state and distribution, sheet thickness distribution, etc, were discussed in details, and the influences of process parameters on these results were also analyzed. The simulated results of the radial strain and the thickness distribution are in good agreement with experimental results. The simulations reveal that the deformation is localized around the tool and constantly remains close to a plane strain state. With decreasing depth step, increasing tool diameter and wall inclination angle, the axial stress reduces, leading to less thinning and more homogeneous plastic strain and thickness distribution. During ISF, the plastic strain increases stepwise under the action of the tool. Each increase in plastic strain is accompanied by hydrostatic pressure, which explains why obtainable deformation using ISF exceeds the forming limits of conventional sheet forming. 展开更多
关键词 incremental sheet forming (ISF) sheet metal forming numerical simulation finite element method
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