摘要
为提高活性TIG焊活性剂的涂敷效率,实验一种新型的活性TIG焊工艺电弧辅助活性TIG焊,简称AA-TIG焊.以SUS304不锈钢作为母材,采用耦合电弧进行AA-TIG焊,研究焊接电流、焊接速度、钨极夹角、CO2气体含量等主要工艺参数对焊缝熔深、熔宽的影响.结果表明:相同的焊接工艺参数下,耦合电弧AA-TIG焊缝熔深达到传统TIG焊熔深的2.86倍,同时焊缝熔宽明显收缩.采用耦合电弧AA-TIG焊可不开坡口一次焊透8 mm厚不锈钢板,焊接效率明显提高.辅助电弧和正常TIG焊工艺参数都对耦合电弧AA-TIG焊焊缝熔深、熔宽有一定影响,其中辅助电弧CO2含量以及2电弧钨极夹角对焊缝成形影响较大.
In order to enhance coating efficiency of activating flux for activating TIG welding,a new advanced welding process with coupled arc（AA-TIG） was proposed,where AA-TIG means arc assisted activating TIG welding.The effect of welding parameters such as the welding current,welding speed,angle of tungsten poles,and CO2 content on weld penetration and width was studied by using SUS304 stainless steel as base metal and coupled arc for AA-TIG welding.The result indicated that the penetration with coupled arc AA-TIG was equal to more than 2.86 times of that of the traditional TIG welding in the same welding conditions and the width reduced dramatically.Using coupled arc AA-TIG welding,the 8 mm thickness stainless steel plate would be fully penetrated without making a groove.Welding efficiency was obviously improved.The parameters of assisting arc and conventional TIG welding had influence on the weld penetration and width of coupled arc AA-TIG welding,among them the CO2 content in assisting arc had more obvious influence.
出处
《兰州理工大学学报》
CAS
北大核心
2010年第2期21-25,共5页
Journal of Lanzhou University of Technology
