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激光透射焊接的数值模拟——温度场、应力场、熔体流场及热降解综述

Numerical Simulation of Laser Transmission Welding-A Review on Temperature Field, Stress Field, Melt Flow Field, and Thermal Degradation.

作者信息

Hu Shuangxi, Li Fang, Zuo Pei

机构信息

Hubei Provincial Key Laboratory of Chemical Equipment Intensification and Intrinsic Safety, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, China.

School of Mechanical and Electrical Engineering, Hubei Open University, Wuhan 430070, China.

出版信息

Polymers (Basel). 2023 Apr 29;15(9):2125. doi: 10.3390/polym15092125.

DOI:10.3390/polym15092125
PMID:37177271
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10181022/
Abstract

Laser transmission welding (LTW) is an excellent process for joining plastics and is widely used in industry. Numerical simulation is an important method and area for studying LTW. It can effectively shorten the experimental time and reduce research costs, aid in understanding the welding mechanism, and enable the acquisition of ideal process parameters. To enhance understanding of numerical simulation studies on LTW and facilitate research in this area, this paper presents a comprehensive overview of the progress made in numerical simulation of LTW, covering the following aspects: (a) characteristics of the three heat source models for LTW temperature field simulation, including surface heat source model, volumetric heat source model, and hybrid heat source model, along with the methods, results, and applications of temperature field simulation based on these models and experimental validation; (b) numerical simulation of thermal and residual stresses based on the temperature field; (c) numerical simulation of the melt flow field; and (d) predictive simulation of material degradation. The conclusion of the review and the prospects for further research work are eventually addressed.

摘要

激光透射焊接（LTW）是一种用于连接塑料的出色工艺，在工业中得到广泛应用。数值模拟是研究LTW的重要方法和领域。它可以有效缩短实验时间并降低研究成本，有助于理解焊接机理，并能够获取理想的工艺参数。为了增进对LTW数值模拟研究的理解并推动该领域的研究，本文全面概述了LTW数值模拟取得的进展，涵盖以下几个方面：（a）用于LTW温度场模拟的三种热源模型的特点，包括表面热源模型、体积热源模型和混合热源模型，以及基于这些模型的温度场模拟方法、结果和应用及实验验证；（b）基于温度场的热应力和残余应力数值模拟；（c）熔体流场的数值模拟；以及（d）材料降解的预测模拟。最终阐述了综述的结论以及进一步研究工作的前景。

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