| About this Abstract |
| Meeting |
2019 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2019)
|
| Symposium
|
2019 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2019)
|
| Presentation Title |
Types of Spatters and Their Features and Formation Mechanisms in Laser Powder Bed Fusion Additive Manufacturing Process |
| Author(s) |
Zachary A. Young, Qilin Guo, Cang Zhao, Luis Izet Escano, Lianghua Xiong, Wes Everhart, Tao Sun, Lianyi Chen |
| On-Site Speaker (Planned) |
Zachary A. Young |
| Abstract Scope |
Spatter causes defect formation, powder redistribution and contamination in the laser powder bed fusion (LPBF) additive manufacturing process. This work reports the features and formation mechanism of spatter during LPBF with the use of in-situ high-speed, high-energy x-ray imaging. Alterations of the laser power, scan speed, and ambient pressure and their relations to spatter production are analyzed. Spatter observed during LPBF testing was quantified by their speed, size, and spatter direction. Potential ways to reduce spatter during manufacturing are proposed by the alteration of physical parameters of the laser system and environment. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |