Solidworks矩形拼焊件拉深成形有限元分析与工艺研究

摘要矩形拼焊件是典型的非轴对称件，在拉深成形中出现焊缝偏移现象，会影响拉深成形件的质量。本文对矩形拼焊件的拉深成形的特点和可能出现的缺陷进行了分析。利用Solidworks建立CAD模型，然后将其导入有限元分析软件Dynaform中进行拉深成形的仿真分析。探讨板厚比m、凹模圆角半径R凹、凸模圆角半径R凸、凸模转角半径Ra、压边力及焊缝位置对矩形拼焊件成形性能及焊缝偏移的影响。最后，利用正交试验法进行了多因素的参数优化，得出最优的工艺参数，为以后实际生产中的有限元应用提供了一定的方法。28617
关键词矩形拼焊件拉深成形有限元分析工艺优化
毕业设计说明书（毕业论文）外文摘要
Title   Finite Element Analysis And Technology Research For The Deep Drawing Of Tailor Welded Rectangular
Abstract
Rectangle is a typical non-axially symmetric parts. The weld offset phenomenon occurs in deep drawing, and will affect the quality of deep drawing parts.
The main characteristics and the possible defects of tailor welded rectangular in deep drawing were analyzed. First, finite element analysis of tailor welded rectangular was molded by Solidworks. Then, simulation analysis of deep drawing was accomplished by finite element simulation analysis software Dynaform. And influence of thickness ratio, die radius, punch radius, punch corner radius, BHF and the position of weld on forming properties of tailor welded rectangular and weld offset were discussed. Finally, an optimum parameters was obtained by using orthogonal test method to finish parameter optimization of multiple factors .The research on deep drawing of tailor welded rectangular provides some methods on the actual production for the future application of the finite element.
Keywords Tailor Welded Rectangular   Deep Drawing Finite Element Analysis   Optimization
目   次
1 绪论    1
1.1 课题的背景及意义    1
1.2 拼焊件国内外研究现状    1
1.3 主要研究内容及目标    3
1.4 论文的组织结构    4
2 矩形拼焊件拉深成形机理分析及焊缝偏移     5
2.1 矩形件拉深成形理论分析    5
2.2 矩形拼焊件拉深成形中的焊缝偏移    5
2.3 矩形拼焊件拉深成形中可能出现的缺陷及其原因    6
2.4 影响矩形拼焊件拉深成形性能及焊缝偏移的因素    7
3 矩形拼焊件拉深成形的仿真模型建立    8
3.1 矩形拼焊件拉深成形分析流程    8
3.2 矩形拼焊件仿真模型的建立    8
3.3 矩形拼焊件拉深成形CAE有限元模型建立    11
3.4 后处理分析    13
3.5 试验方案    14
4 矩形拼焊件拉深成形单因素试验及焊缝偏移规律    16
4.1 矩形拼焊件拉深成形的基本参数的初步确定    16
4.2 板厚比m(T2/T1)对矩形拼焊件拉深成形的影响及焊缝偏移规律    17
4.3 凹模圆角半径R凹对矩形拼焊件拉深成形的影响及焊缝偏移规律    20
4.4 凸模圆角半径R凸及转角半径Ra对矩形拼焊件拉深成形的影响及焊缝偏移规律    23
4.5 不同压边力对矩形拼焊件拉深成形的影响及焊缝偏移规律    27
4.6 不同焊缝位置对矩形拼焊件拉深成形的影响及焊缝偏移规律    31 Solidworks矩形拼焊件拉深成形有限元分析与工艺研究:http://www.youerw.com/jixie/lunwen_23537.html