Physics of humping formation in laser powder bed fusion

• Main Authors: Tang, Chao, Le, Kim Quy, Wong, Chee How
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Mechanical engineering; Ray Tracing Algorithm; Laser Powder Bed Fusion
• Online Access: https://hdl.handle.net/10356/140124
• Institution: Nanyang Technological University

Despite of the promising attributes of laser powder bed fusion, part quality such as porosity and surface roughness remains a critical issue for industrial applications. Humping is a surface defect that may greatly deteriorate the mechanical performances of as-built components. However, current unde...