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Optimization of Microextrusion Preforming Using Taguchi Method

机译:Taguchi方法优化微挤出成型

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摘要

Micropin head geometry significantly influences surface contact and electrical conductivity. In this paper, the preforming process of extrusion is investigated to establish it as a viable process for microforming. Here, the numerical simulations using DEFORM -3D software are used to examine the effect of preformance and pin shape on the extrusion of microbrass pins with a minimum diameter of 0.88 mm under several design parameters. These parameters are planned with the Taguchi method and help to discover better conditions for the minimum extrusion loads. For obtaining the required parameters to enable the finite element software, a compression test is first performed to determine the true stress and true strain curve of the materials. The result acquired from the experiment is compared with the simulation outcome and verified the accuracy. The consequences show that the optimal microextrusion forming conditions appear on stage rod length 0.015 mm, extruding angle 60°, upper front-end taper 60°, and bottom stage angle 60° to minimalize the forming load, and the dimensions of the deformed micropin reveal a good identification with the simulation. The study hence shows a potential tool for the combination of Taguchi method and finite element software to analyze the microforming process in the fastener industry.
机译:微针头的几何形状会显着影响表面接触和导电性。在本文中,对挤压的​​预成型工艺进行了研究,以将其确立为微成型的可行工艺。在这里,使用DEFORM -3D软件进行的数值模拟用于检查在几个设计参数下,性能和销钉形状对最小直径为0.88 mm的微黄铜销钉挤压的影响。这些参数是使用Taguchi方法计划的,有助于发现最小挤压载荷的更好条件。为了获得启用有限元软件所需的参数,首先执行压缩测试以确定材料的真实应力和真实应变曲线。从实验中获得的结果与仿真结果进行比较,并验证了准确性。结果表明,最佳的微挤压成形条件出现在平台杆长度0.015 mm,挤压角度60°,前端前端锥角60°和底部平台角度60°上,以最大程度地降低成形载荷,并且变形的微销尺寸显示与仿真的良好识别。因此,该研究显示了Taguchi方法和有限元软件相结合来分析紧固件行业微成形过程的潜在工具。

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  • 来源
    《Mathematical Problems in Engineering》 |2013年第14期|305797.1-305797.9|共9页
  • 作者

    Shao-Yi Hsia;

  • 作者单位

    Department of Mechanical & Automation Engineering, Kao-Yuan University, Kaohsiung 821, Taiwan;

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  • 正文语种 eng
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