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A Study of Keyhole Porosity in Selective Laser Melting: Single-Track Scanning With Micro-CT Analysis
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: Porosity is an inherent attribute in selective laser melting (SLM) and profoundly degrades the build part quality and its performance. This study attempts to understand and characterize the keyhole pores formed during ...
On Process Temperature in Powder Bed Electron Beam Additive Manufacturing: Model Development and Validation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Powderbed beambased metal additive manufacturing (AM) such as electron beam additive manufacturing (EBAM) has a potential to offer innovative solutions to many challenges and difficulties faced in the manufacturing industry. ...
On Process Temperature in Powder Bed Electron Beam Additive Manufacturing: Process Parameter Effects
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Build part certification has been one of the primary roadblocks for effective usage and broader applications of metal additive manufacturing (AM) technologies including powderbed electron beam additive manufacturing (EBAM). ...
A Combined Experimental-Numerical Method to Evaluate Powder Thermal Properties in Laser Powder Bed Fusion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Powder bed metal additive manufacturing (AM) utilizes a high-energy heat source scanning at the surface of a powder layer in a predefined area to be melted and solidified to fabricate parts layer by layer. It is known that ...