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Numerical Modeling of High-Velocity Impact Welding

机译:高速冲击焊接的数值建模

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摘要

To support the lightweighting aim in the automotive industry, High-Velocity Impact Welding (HVIW) can be used to join dissimilar metals. The manufacturing industry often relies on numerical simulations to reduce the number of trial-and-error iterations required during the process development to reduce costs. However, this can be difficult in high strain rate manufacturing processes where extremely high plastic strain regions develop. Thus, a traditional Lagrangian analysis is not able to accurately model the process due to excessive element distortion. In order to further understand the science behind HVIW processes and benefits of various numerical simulation methodologies, two methods were utilized to simulate Al/Fe bimetallic system which is of interest for the automotive industry. First, a Smoothed Particle Hydrodynamics (SPH) model of two impacting plates was created. Using SPH method, metal jet emission was investigated which previously was impossible. The results then were compared with an Arbitrary Lagrangian-Eulerian (ALE) method. Finally, the numerical results were compared with experimental tests using a Vaporizing Foil Actuator Welding process.
机译:为了支持汽车行业的轻量化目标,可以使用高速冲击焊接(HVIW)连接异种金属。制造业通常依靠数值模拟来减少过程开发过程中所需的反复试验次数,以降低成本。然而,在高应变速率制造工艺中,这会产生很高的塑性应变区域,这可能是困难的。因此,由于过度的元素变形,传统的拉格朗日分析无法准确地对过程建模。为了进一步了解HVIW工艺背后的科学以及各种数值模拟方法的优势,采用了两种方法来模拟Al / Fe双金属系统,这是汽车工业所关注的。首先,创建了两个撞击板的平滑粒子流体动力学(SPH)模型。使用SPH方法,研究了以前无法实现的金属喷射发射。然后将结果与任意拉格朗日-欧拉(ALE)方法进行比较。最后,将数值结果与使用蒸气箔致动器焊接工艺的实验测试进行比较。

著录项

  • 来源
  • 会议地点 San Diego(US)
  • 作者单位

    Center for Design and Manufacturing Excellence (CDME),The Ohio State University, 1314 Kinnear Rd., Columbus, OH 43212, USA,Department of Materials Science and Engineering,The Ohio State University, 2041 College Rd., Columbus, OH 43210, USA;

    Department of Mechanical Engineering, University of New Hampshire,33 Academic Way, Durham, NH 03824, USA;

    Honda RD, North America, 21001 State Route 739, Raymond, OH 43067, USA;

    Center for Design and Manufacturing Excellence (CDME),The Ohio State University, 1314 Kinnear Rd., Columbus, OH 43212, USA,Department of Materials Science and Engineering,The Ohio State University, 2041 College Rd., Columbus, OH 43210, USA;

    Department of Mechanical Engineering, University of New Hampshire,33 Academic Way, Durham, NH 03824, USA;

    Center for Design and Manufacturing Excellence (CDME),The Ohio State University, 1314 Kinnear Rd., Columbus, OH 43212, USA,Department of Materials Science and Engineering,The Ohio State University, 2041 College Rd., Columbus, OH 43210, USA;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Numerical modeling; Welding; Smoothed particle hydrodynamics; Arbitrary Lagrangian-Eulerian;

    机译:数值建模;焊接;平滑的粒子流体动力学;任意拉格朗日欧拉;

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