电焊机2018，Vol.48Issue(1)：75-79,5.DOI:10.7512/j.issn.1001-2303.2018.01.17
薄板铝合金搅拌摩擦焊接全过程金属流动行为研究
Research on material flow behavior during whole friction stir welding process of aluminum alloy sheet
摘要
Abstract
Abstraet:A thermal-mechanical coupling model of whole FSW process of 6061 Al alloy sheet is established based on the solid mechanics theory.Material flow behavior of whole FSW process is studied by using arbitrary Lagrangian-Eulerian (ALE) mesh adaptive technique and particle tracking technique.The results show that the material around the stir zone moves to the back of the stir head mainly in the form of rotating flow and laminar flow.The material on the upper surface has a tendency to move downward spirally affected by the shoulder whereas the material in middle part first moves in a spiral upward mode affected by the pin and then moves downward.Near the bottom of the weldment,metal material moves to the back of stir head mainly in the form of laminar flow.关键词
搅拌摩擦焊/全过程/数值模拟/金属流动行为Key words
friction stir welding/whole process/numerical simulation/material flow behavior分类
矿业与冶金引用本文复制引用
高恩志,刘冰洋,刘春忠..薄板铝合金搅拌摩擦焊接全过程金属流动行为研究[J].电焊机,2018,48(1):75-79,5.基金项目
国家自然科学基金资助项目(51405310) （51405310）
辽宁省自然科学基金资助项目(201602554) （201602554）
