Processing parameters in laser powder bed fusion metal additive manufacturing

Materials & Design

A.D. LaLonde¹  J. Ma²  J.P. Oliveira³ 

[1] CENIMAT/I3N, Department of Materials Science, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal;Booz Allen Hamilton, 8283 Greensboro Drive, McLean, VA 22102, United States;UNIDEMI, Department of Mechanical and Industrial Engineering, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal;

关键词: Additive manufacturing;    Laser powder bed fusion;    Laser processing;    Process parameters;    Rapid solidification;   

DOI  :  

来源: DOAJ

【 摘 要 】

As metallic additive manufacturing grew in sophistication, users have requested greater control over the systems, namely the ability to fully change the process parameters. The goal of this manuscript is to review the effects of major process parameters on build quality (porosity, residual stress, and composition changes) and materials properties (microstructure and microsegregation), and to serve as a guide on how these parameters may be modified to achieve specific design goals for a given part. The focus of this paper is on laser powder bed fusion, but elements can be applied to electron beam powder bed fusion or direct energy deposition techniques.

【 授权许可】

Unknown