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Numerical simulation of metal removal in laser drilling using radial point interpolation method

机译:径向点插值法在激光钻孔中去除金属的数值模拟

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摘要

Prediction of penetration depth in metal laser drilling is done through a simple meshfree numerical model. 2D axisymmetric simplified model of transient metal laser drilling is proposed for continuous laser beam of Gaussian distribution with strong form of Radial Point Interpolation Method (RPIM) used for approximating the temperature field. The commonly used Multi-Quadrics (MQ) and Exponential (EXP) Radial Basis Functions (RBFs) are tested and compared with each other. The model logic is constructed in MATLAB code, while the results are compared with published numerical and experimental work. The simulation results give good agreement with the previous numerical and experimental work, showing the model reliability in predicting the penetration depth in such a physically complex process.
机译:通过简单的无网格数值模型可以预测金属激光钻孔的穿透深度。针对高斯分布的连续激光束,提出了二维轴对称简化的瞬态金属激光钻孔简化模型,采用强形式的径向点插值法(RPIM)来近似温度场。测试并比较了常用的多二次方(MQ)和指数(EXP)径向基函数(RBF)。用MATLAB代码构造模型逻辑,同时将结果与已发表的数值和实验工作进行比较。仿真结果与先前的数值和实验工作非常吻合,显示了模型在预测这种物理复杂过程中的穿透深度方面的可靠性。

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  • 作者单位

    Department of Mechanical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia,Department of Automotive Engineering, Ain Shams University, Cairo 11566, Egypt;

    Department of Mechanical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia;

    Department of Mechanical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia;

    Institute of Mathematical Sciences, University of Malaya, Kuala Lumpur 50603, Malaysia;

    Department of Materials Science and Engineering, Egypt-Japan University of Science and Technology (E-JUST), Alexandria 21934, Egypt;

    Department of Mechanical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia,Department of Mechanical Engineering, Assiut University, Assiut 71515, Egypt;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Laser drilling; Meshfree; RBF; Numerical simulation; Heat transfer;

    机译:激光钻孔;无网格RBF;数值模拟传播热量;

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