基于FLUENT的7022铝合金搅拌摩擦焊接过程数值模拟与分析  

Numerical Simulation and Analysis of Friction Stir Welding Process for Aluminium Alloy 7022 Based on FLUENT

作　　者：董学伟[1] 黎向锋[1] 左敦稳[1] 汪洪峰[1] 王吉胜[1] 董春林 李光 

机构地区：[1]南京航空航天大学机电学院,江苏南京210016 [2]中国搅拌摩擦焊接中心,北京100024

出　　处：《机械制造与自动化》2011年第4期105-108,共4页Machine Building & Automation

基　　金：江苏省研究生创新基金(CX09B073Z)

摘　　要：铝合金搅拌摩擦焊接焊缝区域金属流是单相流。针对这种单相流搅拌摩擦焊接过程应用大型计算流体动力学(CFD)软件FLUENT进行了数值模拟与分析,得到其三维流场。根据流场得到的相关结果可以观察焊缝区塑性金属流动形态与轨迹,为探究与揭示搅拌摩擦焊接过程中焊缝区塑性金属流变机理提供参考。During the friction stir welding process of aluminium alloy,the plastic metal flow in the weld is a kind of single-phase flow.In this paper,aiming at numerical simulation and analysis of this single-phase flow,compulational fluid dynamics（CFD） commercial software FLUENT is applied and a 3-D flow filed is obtained.According to the related results of flow field,the flow patterns and tracks of the plastic metal flow are observed visually.This can give a reference to the study and discovery of the metal flow mechanism in the weld of friction stir welding process.

关 键 词：搅拌摩擦焊 数值分析 三维流场 FLUENT 

分 类 号：TG47[金属学及工艺—焊接] TP274[自动化与计算机技术—检测技术与自动化装置]