摘要
针对超塑性微挤压工艺的特点,利用有限元方法建立微挤压模型。以制件在微小尺寸下尺度效应的特征为基础,通过挤压力、等效应力分布以及流动网格的变化模拟分析尺度效应对微挤压过程的影响,为微小零件挤压成形的深入研究提供必要的信息与指导。
According to the characteristics of superplastic micro-extrusion, micro-extrusion finite element model is built. The influences of size effect are simulated and analyzed by extrusion pressure, effective stress distribution and the changes of flow grid, on the basis of size effect of parts at micro dimension. Through this study, the necessary information and guides are provided for the further research of extrusion of micro-parts.
出处
《航空制造技术》
2010年第16期73-75,95,共4页
Aeronautical Manufacturing Technology
关键词
超塑性
尺度效应
微挤压
Superplasticity Size effect Micro- extrusion
