基于CFD的活性TIG焊气路流场数值分析  

Numerical Analysis of Gas Flow Field in Active TIG Welding Based on CFD

作　　者：黄自成 谢玉伦 王昆 李响 HUANG Zicheng;XIE Yulun;WANG Kun;LI Xiang(School of Machinal Engineering,Anhui Institute of Information Technology,Wuhu 241000,China)

机构地区：[1]安徽信息工程学院机械工程学院,安徽芜湖241000

出　　处：《宿州学院学报》2024年第6期18-22,54,共6页Journal of Suzhou University

基　　金：安徽省教育厅自然科学重点项目(KJ2019A1293,2022AH051891,KJ2021A1204);安徽省教育厅质量工程项目(2021kcszsfkc202)。

摘　　要：通过计算流体动力学(Computational Fluid Dynamics,简称CFD)数值分析技术,研究了不同的气路结构形式对活性钨极氩弧焊气体流动特性的影响。通过建模软件创建了不同的焊枪气路模型,使用ANSYS fluent仿真软件采用离散相模型(Discrete Phase Model,简称DPM模型)对钨极氩弧焊(Tungsten Inert Gas Welding,简称TIG焊)的气体流域的压力场、速度场以及粒子流动轨迹进行了数值分析。结果表明,正V形气路结构最高压力为923 MPa,速度为44.4 m/s,是三种结构中最适合焊接的气路形式。同时,DPM模型下的正V形气路结构中,没有出现粒子沉积现象,是三种结构中防止粒子沉积现象最好的气路结构,揭示了活性TIG焊枪气路堵塞的部分原因并为活性TIG焊枪的改进和优化提供理论支持。The influence of different gas path structures on the gas flow characteristics of active tungsten argon arc welding was studied by CFD numerical analysis technology.Different gas path models of welding torch are created through modeling software,and the pressure field,velocity field and particle flow trajectory of gas basin of TIG welding are numerically analyzed by using ANSYS fluent simulation software and DPM model.The results show that,The positive V-shaped gas path structure has a maximum pressure of 923 mpa and a speed of 44.4 m/s,which is the most suitable gas path form for welding among the three structures.At the same time,there is no particle deposition in the positive V-shaped gas path structure under DPM model,which is the best gas path structure to prevent particle deposition among the three structures.It reveals some reasons for the blockage of the gas path of the active TIG welding gun and provides theoretical support for the improvement and optimization of the active TIG welding gun.

关 键 词：TIG焊 气路结构 CFD DPM模型 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]