2024 Powder Metallurgy World Congress & Exhibition

Presentation information

General Sessions (Oral) » T6 AM Beam Based Technologies

[T6] AM Beam Based Technologies

Oral

Mon. Oct 14, 2024 5:25 PM - 6:25 PM Room B (3F 302, Conference Center)

Chairpersons: Asuka Suzuki (Nagoya University, Japan), Hyoung Seop Kim (POSTECH, Korea)

5:45 PM - 6:05 PM

[14B-T6-06] Multi-Material Parts Production by Selective Laser Melting

*Y. A. Chivel1 (1.MerPhotonics, France)

Keywords:selective laser melting, multi-material parts, algorithm of recoating, cross-contamination, dissolution

The use of multi-materials may be viewed as a technically challenging and economically favorable manufacturing method.New patented method and SLM machine prototype for 3D multi-material parts production has been elaborated, where standard recoating systems with roller or blade can be used. A narrow fraction of powders of various materials with different medium particle size and special algorithm of powder layer recoating
are used. Method enables to separate the overflow powders of a various materials for re-use. The main mechanisms of SLM machine have been elaborated, physically modelled and produced. The cross-contamination effect has been studied experimentally. Not more than 0.1% cross-contamination are fixed.The influence of dissolution in liquid pool and shrinkage on accuracy of the position of a contact surface between various material have been given adequate consideration. The first industrial multi – material SLM machine is under consideration.