Laser additive manufacturing system using powder fed Direct Energy Deposition (LAM-PF-DED)


Laser Additive Manufacturing (LAM) has brought a paradigm shift to “feature based design and manufacturing” and is being considered as an integral part of fourth industrial revolution. LAM has paved the way for the fabrication of metallic components layer by layer with complex shapes and designs directly form 3D CAD model. A state of art architecture is developed and deployed for integration of LAM-PF-DED system yielding near-net-shaping and repairing of various engineering metallic components/ coatings. In the developed system, a commercially available multi-mode fibre laser (up to 2 kW) is used, a delivery fibre is used to deliver laser beam through refractive focusing optics and is integrated with indigenously developed compact co-axial nozzle coupled, twin powder feeder for powder feeding for laser additive manufacturing in a built envelope of 250 mm x 250 mm x 250 mm in controlled atmosphere conditions. The LAM built component ensures structural properties.