Open AccessMODELLING OF SELECTIVE LASER MELTING PROCESS FOR ADDITIVE MANUFACTURING
Author(s) -
Maria Rita Ridolfi,
Paolo Folgarait,
Andrea Di Schino
Publication year - 2020
Publication title -
acta metallurgica slovaca
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.277
H-Index - 13
eISSN - 1338-1156
pISSN - 1335-1532
DOI - 10.36547/ams.26.1.525
Subject(s) - molar absorptivity , laser , materials science , calibration , range (aeronautics) , energy (signal processing) , selective laser melting , thermal conductivity , specific energy , optics , composite material , thermodynamics , mathematics , physics , statistics
The proposed model is a numerical tool for designing processing windows suitable to metal alloy. The model is validated fitting experimental measures of track width, depth and cross sectional area from three literature sources. Effective liquid pool thermal conductivity laser absorptivity and depth of application of laser energy are here considered as fitting parameters. Laser absorptivity and depth of application of laser energy result to rise almost linearly with increasing specific energy.. The obtained results give confidence about the possibility of using the model as a predicting tool after further calibration on a wider range of metal alloys.