Influence of process parameters on the formability of bead stamping part using advanced models
Influence of process parameters on the formability of bead stamping part using advanced models
复制标题
使用先进模型研究工艺参数对胎圈冲压件成形性的影响
DOI：
10.1088/1742-6596/896/1/012005
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Albers
中科院分区：
文献类型：
--
作者：
Müller;Bursac;Albers
珠子应用于深拉钣金零件以增加其刚度。为了形成卷边，执行至少包括深拉和卷边的两阶段制造工艺。因此，通过数值优化可以有效地减少金属板材厚度，从而减轻重量。为了将优化算法应用于非虚拟实际零件的生产，在两个制造步骤中都必须考虑零件的成形限制。焊道成形性受压边力和润滑等工艺参数的影响。研究这些影响的一种方法是使用精确的仿真模型。在本研究中，使用非关联流动规则下名为Yld2000-2D的屈服函数来表达毛坯的各向异性材料行为，并使用考虑非线性应变路径的广义成形极限概念（GFLC）来确定成形性。这些模型通过比较中岛实验中测量的应变和珠形成极限进行了验证。然后，通过验证模型研究了上述工艺参数的影响。
Beads are applied to deep drawn sheet metal parts to increase its stiffness. In order to form the bead, a two-stage manufacturing process including at least deep drawing and beading is performed. Thus, reductions of sheet metal thickness and consequently weight reduction can be effectively reached by numeric optimization. In order to apply the optimization algorithm to the production of non-virtual actual parts, the forming limits of the parts must be considered in both manufacturing steps. Bead formability is affected by process parameters such as blank holding force and lubrication. One way to investigate these influences is to use an accurate simulation model. In this study, the yield function named Yld2000-2D under non-associated flow rule is used to express anisotropic material behavior of blank and the Generalized Forming Limit Concept (GFLC) considering nonlinear strain paths is used to determine the formability. These models are validated by comparing the strain and bead forming limits measured in the Nakajima experiment. Then, the influences of mentioned process parameters are investigated by the validated model.
DOI：
10.1016/0022-5096(75)90018-6
发表时间：
1975-01-01
影响因子：
5.3
作者：
HOCKETT, JE;SHERBY, OD
通讯作者：
SHERBY, OD
PGE – Produkt Generationsentwicklung am Beispiel des Zweimassenschwungrads
DOI：
--
发表时间：
2017
期刊：
影响因子：
--
作者：
A. Albers;N. Bursac;Simon Rapp
通讯作者：
Simon Rapp