Induction assisted laser cladding for high deposition rates

Experimental and numerical study of the influence of induction heating process on build rates Induction Heating-assisted laser Direct Metal Deposition (IH-DMD)

“…By doubling the current from 1000 A to 2000 A, the temperature increases approximately by the factor of four. This behavior can be explained by the mathematical relationship between power dissipation and electric current through a resistance followed the form of the equation (7).…”

“…They observed lower susceptibility of cracking in the coated layer compared to deposited layers without preheating. Jonnalagadda et al performed induction assisted laser DMD setup using Fraunhofer COAXpowerline nozzle system, in which a quarter-turn induction coil coupled laterally to laser nozzle [7]. They deposited W2C-Ni Matrix on steel substrate and could increase the powder feed rate of 1.85 X compared to the standard laser DMD process.…”

Influences of parameters on microstructures and mechanical properties of Cr13Ni5Si2 based composite coating by laser-induction hybrid cladding

“…Results indicate that the powder deposition rate was increased by 85% with respect to conventional laser cladding. Meanwhile, cracks in the coating were reduced remarkably [6]. F. Brueckner et al investigated the residual stress in the coatings by induction assisted laser cladding, and results indicate that the preheating and postheating of the induction can reduce the residual stress in the coatings effectively [7,8].…”

Residual stress and cracking behaviors of Cr13Ni5Si2 based composite coatings prepared by laser-induction hybrid cladding

“…Due to the hybrid effect of laser beam and induction heating, LIHC can reduce residual stress and eliminate cracks in the hard facing coatings effectively [17][18][19]. Brückner et al have simulated residual stress in the LIHC coating by FEM.…”