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RISFlow Through a Passage With Scaled Additive Manufacturing Roughness Representing Different Printing Orientations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Components with internal passages created using some laser-sintering based, additive manufacturing (AM) systems can exhibit anisotropic surface features with an appearance of three-dimensional roughness superimposed on ...
Flow Through Scaled Additive Manufacturing Internal Passages With Correlated and Anti-Correlated Roughness on Opposing Walls
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Components created using additive manufacturing (AM) processes such as laser powder bed fusion (L-PBF) may exhibit a type of printing error referred to as a “layer shift error.” In this type of error, the reference location ...
Flow in a Simulated Turbine Blade Cooling Channel With Spatially Varying Roughness Caused by Additive Manufacturing Orientation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Because of the effects of gravity acting on the melt region created during the laser sintering process, additively manufactured surfaces that are pointed upward have been shown to exhibit roughness characteristics different ...
Convection in Scaled Turbine Internal Cooling Passages With Additive Manufacturing Roughness
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Additive manufacturing processes, such as direct metal laser sintering (DMLS), enable the creation of novel turbine cooling internal passages and systems. However, the DMLS method produces a significant and unique surface ...