About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Poster Session
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Presentation Title |
The Effect of Processing Parameters on Melt Pool Geometry and Surface Formation in Laser Powder Bed Fusion |
Author(s) |
Edwin B. Glaubitz, Joy Gockel, Orion L Kafka, Jason C Fox |
On-Site Speaker (Planned) |
Edwin B. Glaubitz |
Abstract Scope |
The surfaces of components created using additive manufacturing (AM) often have a higher roughness than those created with other manufacturing methods. This has been shown to negatively impact the fatigue performance of AM components. However, there is a limited understanding of how the surface is formed and how processing parameters influence the surface formation. To better understand the surface roughness in components built using laser powder bed fusion AM, the relationship between contour processing parameters and melt pool size is analyzed for nickel-based superalloy 718. This understanding is used to build components with various parameters forming consistent melt pool sizes. The surface topography is measured using 3D surface profilometry and the area of the contour melt pool is measured metallographically. Relationships identified between melt pool size and surface roughness will be used to inform future process parameter development to improve performance of AM components. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |