| 半固态触变力的上限解 |
| |
| 引用本文： | 王平,路贵民,崔建忠.半固态触变力的上限解[J].东北大学学报(自然科学版),2002,23(5):455-458. |
| |
| 作者姓名： | 王平 路贵民 崔建忠 |
| |
| 作者单位： | 东北大学材料电磁过程教育部重点实验室;东北大学材料电磁过程教育部重点实验室;东北大学材料电磁过程教育部重点实验室辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004 |
| |
| 基金项目： | 国家自然科学基金资助项目 (5 99740 0 9) · |
| |
| 摘 要： | 采用上界理论解法,求解半固态A356铝合金触变成形力·假定变形体为质点连续分布的刚塑性材料,设定连续函数速度场,将变形区分为圆盘和圆环两个塑性区、一个圆环刚性区等三个区,计算结果表明,触变成形力为82298kN,与实测结果在误差允许范围内拟合良好;变形力与变形区的尺寸有很大关系,当侧壁及下部圆盘愈厚时,变形力愈小;反之,变形力愈大
|
| 关 键 词： | 金属半固态成形 液相线半连续铸造 A356铝合金 上界理论解法 连续函数速度场 刚塑性 触变成形力 |
| 文章编号： | 1005-3026(2002)05-0455-04 |
| 修稿时间： | 2001年7月18日 |
Upper Bound Solution of Semi-Solid Thixoforming Force |
| |
| WANG Ping,LU Gui min,CUI Jian zhong.Upper Bound Solution of Semi-Solid Thixoforming Force[J].Journal of Northeastern University(Natural Science),2002,23(5):455-458. |
| |
| Authors: | WANG Ping LU Gui min CUI Jian zhong |
| |
| Abstract: | The thixoforming force of semi solid A356 alloy were calculated using upper bound theoretical method. The deforming body was assumed as continuous strong plastic mode material to establish the kinematically admissible velocity field. The deforming zone was divided into three parts, solid plastic zone, hollow disk plastic zone and hollow disk elastic zone. The modelling results show that the thixoforming force is 822 985?kN which is very close to the experimental in reports. It is shown that the deforming zone size has great influence to the thixoforming force. The thicker of the deformation region as well as the bottom region side, the smaller of the thixoforming force and vice versa. |
| |
| Keywords: | metal semi solid thixoforming liquidus semi continuous casting A356 aluminum alloy upper bound theoretical solution continuous function velocity field strong plastic mode thixoforming force |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《东北大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《东北大学学报(自然科学版)》下载免费的PDF全文 |
