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Effect of laser-induced ultrasound treatment on material structure in laser surface treatment for selective laser
Ivan A Ivanov1,2, Vladimir S Dub1, Alexander A Karabutov3,4,5
1JSC "NPO "TSNIITMASH", 4 Sharikopodshipnikovskaya St., Moscow, 115088, Russia.
Abstract:
A new mechanism for controlling the microstructure of products in manufacturing processes based on selective laser melting is proposed. The mechanism relies on generation of high-intensity ultrasonic waves in the melt pool by complex intensity-modulated laser irradiation. The experimental study and numerical modeling suggest that this control mechanism is technically feasible and can be effectively integrated into the design of modern selective laser melting machines.
