A5004094080- Additive Manufacturing and 3D Printing Technologies
- High Temperature Alloys and Creep
- Additive Manufacturing Materials and Processes
- Welding Techniques and Residual Stresses
- Microstructure and Mechanical Properties of Steels
- Injection Molding Process and Properties
- Nuclear Materials and Properties
- Powder Metallurgy Techniques and Materials
- Metallurgy and Material Forming
- Manufacturing Process and Optimization
- Aluminum Alloy Microstructure Properties
- Metal Alloys Wear and Properties
- Metal Forming Simulation Techniques
- Advanced materials and composites
General Electric (United States)
2019
Progress towards widespread adoption of additively manufactured (AM) components requires a strong understanding the influence pervasive pore defects on material's fatigue life. In this work, we describe robust methodology to determine process parameters intentionally seed three distinct types defect structures (i.e., lack fusion, keyhole/trapped gas, and planar/linearly aligned defects) in AM builds, alongside control specimens with minimal porosity, through design experiments (DOE) study...
This is the second of two manuscripts that presents a computationally efficient full-field deterministic model for laser powder bed fusion (LPBF). The Hybrid Line (HL) thermal developed in part I extended to predict in-process residual stresses due processing nickel-based superalloy, RENÉ 65. computational efficiency and accuracy HL thermo-mechanical first compared exponential decaying heat input on single-track simulation. LPBF thin-wall builds with three different powers four printing...