首页|Effect of distance between heat sources on droplet transfer behavior and weld formation of AH36 during laser and CWW GMAW arc hybrid welding
Effect of distance between heat sources on droplet transfer behavior and weld formation of AH36 during laser and CWW GMAW arc hybrid welding
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In order to analyze the influence of the distance between heat sources(DLA)on the welding process,the effects of DLA on the droplet transfer behavior,weld formation characteristics and weld formation mechanism of AH36 in laser and cable-type welding wire gas metal arc welding arc hybrid welding were studied.Real-time photography was conducted using a high-speed camera to determine the droplet transfer and arc behaviors;the surface morphology and macroscopic cross-section of the weld obtained from the experiment were observed and analyzed.The arc height decreases with the increase in the DLA,the arc width shows the opposite change,and the welding current decreases.The allure of the laser to the arc increases with the increase in the DLA.The frequency of droplet transfer increases with the increase in the DLA,but the growth rate decreases.The continuous increase in the DLA leads to the tendency of the droplet size to decrease first and then increase,and the minimum value is obtained when the DLA is 4 mm.The DLA has obvious influence on the weld formation.The weld penetration and reinforcement change similarly,increasing first and then decreasing as the DLA increases,and the laser area of the weld also increases first and then decreases.
Laser-arc hybrid weldingCable-type welding wireDistance between heat sourcesDroplet transfer behaviorWeld formation
NETL
NSTL
万方数据
