Special features of welding 10KhSND low-alloy structural steel with an oscillating laser beam

Abstract

Experimental results confirm that deep penetration welding with oscillations of the laser beam influences formation of the structure, shape and quality of a welded joint. The results of metallographic studies are used to determine the values of the oscillation parameters of the laser beam at which the risk of formation of defects in the welded joint is reduced. The results of mechanical tests and microhardness measurements of the welded joints produced by laser welding with an oscillating beam in 10KhSND steel are presented.

Keywords:

• Laser welding
• beam oscillations
• crack
• deep penetration
• microstructure
• properties

Notes

Selected from Svarochnoe Proizvodstvo 2016 69(10) 45–50.