Inconel 625 Additive Manufacturing Process Parameter Investigation on an EOS M290
Date of Award
Master of Science
Mechanical and Aeronautical Engineering
Dr. Daniel Kujawski
Dr. Jinseok Kim
Dr. Erik Pederson
Dr. Ralph Worthington
Inconel 625, additive manufacturing, laser powder bed fusion, mechanical properties, process parameter
Masters Thesis-Abstract Only
Restricted to Campus until
Additive Manufacturing (AM) has been used to manufacture fully dense metallic production hardware by using a layer-by-layer build approach. There are various methods of producing metal components from AM, such as laser beam melting, electron beam melting, or metal deposition. Laser powder bed fusion (L-PBF) , a type of laser beam melting has grown in popularity for use in production settings due to its ability to produce consistently produce production hardware with material and mechanical properties similar to conventionally produced parts. However, a complete understanding of the material and mechanical properties and how AM processes parameters effect the properties of the resulting material is not fully understood. This research paper reviews a comprehensive study that investigates the material and mechanical properties of Inconel 625 produced with L-PBF in the as built and post high isostatic press (HIP) processing. Process parameters including laser power and laser speed have been studied. The material and mechanical properties of interest in this study include bulk material density, porosity, micro structure evaluation, material hardness, and tensile test properties. It is expected that from this report an acceptable range of process parameters can be identified to ensure parts meet all material and mechanical properties.
Johnson, Joseph W., "Inconel 625 Additive Manufacturing Process Parameter Investigation on an EOS M290" (2019). Master's Theses. 4723.