电焊机2025，Vol.55Issue(8)：47-52,6.DOI:10.7512/j.issn.1001-2303.2025.08.04
6005-T6铝合金静止轴肩搅拌摩擦焊工艺研究
Researched on the Process of Stationary Shoulder Friction Stir Welding of 6005-T6 Aluminum Alloy
摘要
Abstract
Stationary shoulder stir friction welding was performed on 6005-T6 aluminum alloy with a plate thickness of 4 mm,and the influence of welding speed on the joint microstructure and mechanical properties was studied.And optical mi-croscope,scanning electron microscope,microhardness tester,and tensile tester were used to analyze the microstructure and test the mechanical properties of the joint.The results indicate that compared to traditional friction stir welding,static shoul-der friction stir welding reduces the performance gradient in the thickness direction of the plate;There are two hardness soft-ening zones along the cross-sectional direction of the weld seam,namely the heat affected zone on the retreat side and the heat affected zone on the advance side,which are the areas with the weakest mechanical properties of the entire joint.Under the welding process parameters of a stirring head speed of 2600 r/min,welding speeds of 300 mm/min,500 mm/min,and 800 mm/min,the tensile strength of the joint was 218 MPa,227 MPa,and 237 MPa,respectively.The tensile fracture oc-curred in the heat affected zone on the retreat side,and the tensile fracture was ductile fracture.关键词
6005-T6/静止轴肩搅拌摩擦焊/性能梯度,抗拉强度/弯曲Key words
6005-T6/stationary shoulder friction stir welding/performance gradient/tensile strength/bend分类
矿业与冶金引用本文复制引用
邓清洪,刘晓东,杨升平..6005-T6铝合金静止轴肩搅拌摩擦焊工艺研究[J].电焊机,2025,55(8):47-52,6.基金项目
2023年度湖南汽车工程职业大学自然科学研究重点资助课题(HQZYKY2023A05) （HQZYKY2023A05）
