Effect of Heat Input on Porosity in High Nitrogen Steel Composite Welds
High-nitrogen steel plates with a thickness of 8 mm are welded with a laser-arc composite heat source for experiment to study the impact of different heat input parameters on the blowhole defect.The results show that with the increase of laser power,welding current and arc voltage,the porosity of welds decreases; with the increase of welding speed,the porosity of welds increases.Appropriately increasing the heat input helps reduce the porosity of the weld.
CUI Bo ZHANG Hong LIU Fengde
College of Mechanical and Electric Engineering,Changchun University of Science and Technology,Changc College of Mechanical and Electric Engineering,Changchun University of Science and Technology,Changc College of Mechanical and Electric Engineering,Changchun University of Science and Technology,Changc
国际会议
广州
英文
1-4
2018-05-11(万方平台首次上网日期,不代表论文的发表时间)