Numerical Simulation on Temperature-field of Magnesium Alloy Pulsed Laser Welding
Using finite element analysis software,the thickness in 1.2 mm of AZ31 magnesium pulsed laser welding was simulated.By changing the laser pulse,frequency and welding speed,which compared the effect of parameters'change on the shape molten pool,which can confirm ideal standard parameters of the thickness specification parameters of AZ31 alloy sheet.Finally,the research results indicate that: as the laser pulse width and frequency reduces,the joint penetration reduces;as welding speed reduces,the joint penetration increases.Laser parameters'change has little effect on the width of molten pool.