Characterization of Fusion Lines Obtained with Laser Welding on Ductile Iron Plates

Ioan Catalin Mon; Mircea Horia Tierean; Eugen Cicala; Michel Pilloz; Iryna Tomashchuk; Pierre Sallamand

doi:10.4028/www.scientific.net/SSP.254.33

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HomeSolid State PhenomenaSolid State Phenomena Vol. 254Characterization of Fusion Lines Obtained with...

Characterization of Fusion Lines Obtained with Laser Welding on Ductile Iron Plates

Abstract:

This paper studies the ductile iron (DI) weldability using laser welding. For performing an Yb:YAG continuous laser was used, with a maximum power of 6 kW. The parametrical window power (P) - welding speed (S) was explored by carrying out the fusion lines on ductile iron plates without preheating, to determinate areas of weldability (complete penetration, correct geometry) to allow further characterization. The criteria for selection of focus areas were the geometry of the fusion lines and the absence of the welding defects. The unsatisfactory domains were characterized by: collapse of the melted metal, incomplete penetration, low fusion lines quality (geometry, compactness). In present study, several values of power and welding speed have been tested to identify their influence on geometry, compactness of the joints and mechanical properties. As result, the power-welding speed diagram for feasible domains of laser welding was generated.

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Periodical:

Solid State Phenomena (Volume 254)

Pages:

33-42

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.254.33

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Online since:

August 2016

Authors:

Ioan Catalin Mon*, Mircea Horia Tierean, Eugen Cicala, Michel Pilloz, Iryna Tomashchuk, Pierre Sallamand

Keywords:

Diffractometry, Ductile Iron, Laser Welding, Microhardness, Scanning Electron Microscopy

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