作者机构：
[Liu, Kun; Hu, Zehao; Wang, Nan; Liu, Juan] Cent S Univ Forestry & Technol, Dept Mat Forming, Changsha 410004, Hunan, Peoples R China.
通讯机构：
[Hu, Zehao] C;Cent S Univ Forestry & Technol, Dept Mat Forming, Changsha 410004, Hunan, Peoples R China.
会议名称：
3rd International Conference on Manufacturing Science and Engineering (ICMSE 2012)
会议时间：
MAR 27-29, 2012
会议地点：
Xiamen, PEOPLES R CHINA
会议主办单位：
[Hu, Zehao;Liu, Juan;Liu, Kun;Wang, Nan] Cent S Univ Forestry & Technol, Dept Mat Forming, Changsha 410004, Hunan, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
Automatic assembly;Injection standard mold base;Program;UG/Open API
摘要：
In order to realize the function of automatic assembly of the standard mold base, simultaneously, realize the intelligence and automation of products, the automatic assembly system is analyzed and researched, the design and development of the automatic assembly are completed and the executable files are exported through the function provided by the tool of UG/Open API, which make the mold automatic assembly realistic, the structure of product design and assembly optimized, the product development cycle shortened and the efficiency and accuracy of assembly improved.
作者机构：
[Hu, Zehao; Wang, Nan; Liu, Juan] Cent S Univ Forestry & Technol, Dept Mat Forming, Changsha 410004, Hunan, Peoples R China.
通讯机构：
[Hu, Zehao] C;Cent S Univ Forestry & Technol, Dept Mat Forming, Changsha 410004, Hunan, Peoples R China.
会议名称：
the 2012 International Conference on Frontiers of Mechanical Engineering and Materials Engineering (机械工程与材料工程国际会议())
会议时间：
2012-07-27
会议地点：
香港
会议主办单位：
[Hu, Zehao;Liu, Juan;Wang, Nan] Cent S Univ Forestry & Technol, Dept Mat Forming, Changsha 410004, Hunan, Peoples R China.
会议论文集名称：
the 2012 International Conference on Frontiers of Mechanical Engineering and Materials Engineering (机械工程与材料工程国际会议())论文集
关键词：
Cylinder part;Numerical simulation;Dynaform software;Orthogonal test
摘要：
The forming process of a typical cylinder part is simulated by the platform of Dynaform. The influence of blank holder force (BHF), punching speed and clearance between punch and die on the quality of forming part is assessed by the orthogonal experimental method. The value of BHF of 20KN, punching speed of 2000mm/s and clearance between punch and die of 1.1mm which are the optimized parameters value are obtained.
关键词：
Equal channel angular extrusion;finite element analysis;die geometry;beta-titanium
摘要：
The finite element analysis was applied to evaluate the respective influences of die geometry and process conditions on plastic strain distribution for β-titanium (Ti-13V11Cr3Al) during the equal channel angular extrusion. It was found that optimum ECAE die geometry is strongly material dependent. Optimal strain homogeneity in the Ti-13V11Cr3Al alloy may be achieved at r (inner radius) =5mm, R (outer radius) =3mm. The equivalent plastic strain increases with increasing friction coefficient. And the better homogeneity of the equivalent plastic strain distribution can be achieved when m=0.1. The faster is the ram speed, the lower is the homogeneity of the equivalent plastic strain distribution. The back-pressure can increase the strain level across the workpiece and prevent the problem of surface cracking induced by tensile stresses. The distribution of the plastic strain is not temperature sensitive between 400°C and 600°C.
摘要：
The data of process parameters and quality index from CAE simulation orthogonal test is used as training samples, the BP neural network is trained and the neural networks ensemble approximate calculation agent model of the relations between processing parameters and the quality index of product are obtained. The agent model with a clear mathematical formula calculates quickly and accurately, so it can optimize globally by the genetic algorithm. The best group of process parameters is obtained and a multi-objective optimization of the quality index of products is realized.
