Additive Manufacturing of Metal Parts by Powder Bed Fusion
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Abstract:
The two main flavors of powder bed fusion (PBF) for metals are electron beam PBF (e-PBF) and laser PBF (L-PBF). Here, we will discuss the differences between the two approaches and the microstructural and mechanical properties that result from the two manufacturing approaches. Topics will include powder requirements, build process parameters and post processing, potential defects and surface finish. Examples will be drawn from programs to produce rotating components for rocket engines and programs to produce both thrusters for rocket guidance and concepts for hypersonic leading edges.
The two main flavors of powder bed fusion (PBF) for metals are electron beam PBF (e-PBF) and laser PBF (L-PBF). Here, we will discuss the differences between the two approaches and the microstructural and mechanical properties that result from the two manufacturing approaches. Topics will include powder requirements, build process parameters and post processing, potential defects and surface finish. Examples will be drawn from programs to produce rotating components for rocket engines and programs to produce both thrusters for rocket guidance and concepts for hypersonic leading edges.
Biography:
Dr. Porter is a senior scientist and program manager at Castheon, Inc. He obtained his BSc from Sussex University and his PhD from Imperial College. He was an assistant professor at USC before joining the Rockwell Science Center, where he was a member of the structural ceramics group and the structural metals group. He then became the manager of the Carl Zeiss Center of Excellence in Electron Microscopy at UCI, later transferring to UCSB. He then spent six years with UES, Inc., in Dayton OH, first managing the Materials Characterization Facility at WPAFB, and later as the Principal Scientist in the Additive Manufacturing Division. He joined Castheon in 2019.
Dr. Porter is a senior scientist and program manager at Castheon, Inc. He obtained his BSc from Sussex University and his PhD from Imperial College. He was an assistant professor at USC before joining the Rockwell Science Center, where he was a member of the structural ceramics group and the structural metals group. He then became the manager of the Carl Zeiss Center of Excellence in Electron Microscopy at UCI, later transferring to UCSB. He then spent six years with UES, Inc., in Dayton OH, first managing the Materials Characterization Facility at WPAFB, and later as the Principal Scientist in the Additive Manufacturing Division. He joined Castheon in 2019.
