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Keywords: additive manufacturing
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Proceedings Papers

Proc. ASME. GT2021, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy, V007T17A010, June 7–11, 2021
Paper No: GT2021-59480
...Abstract Abstract Criteria for assessing high cycle fatigue (HCF) capability is important for transitioning additive repair technologies to turbine engine applications. By studying the fatigue results of two laser directed energy deposition additive manufacturing repairs on airfoil...
Proceedings Papers

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT25A005, June 7–11, 2021
Paper No: GT2021-60201
...Abstract Abstract Emerging additive manufacturing technology offers many opportunities for improved cooling design in gas turbine components by enabling design of cooling passages and shapes that are not manufacturable with conventional methods. Many combustion components have already taken...
Proceedings Papers

Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT26A014, June 7–11, 2021
Paper No: GT2021-60070
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-60070 MECHANICAL TESTING OF ADDITIVELY MANUFACTURED SUPERALLOY LUGS Sushovan Roychowdhury, Henrik Karlsson, Björn Henriksson, Pher-Ola Carlson GKN Aerospace Sweden...
Proceedings Papers

Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT13A010, June 7–11, 2021
Paper No: GT2021-59603
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-59603 CALIBRATION OF A CFD METHODOLOGY FOR THE SIMULATION OF ROUGHNESS EFFECTS ON FRICTION AND HEAT TRANSFERIN ADDITIVE MANUFACTURED COMPONENTS Lorenzo Mazzei...
Proceedings Papers

Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT13A009, June 7–11, 2021
Paper No: GT2021-59352
... and operates below the Pv Vapor/saturation pressure [Pa] heat flux limitations of the heat pipe. Keywords: Heat pipe, Rg Gas constant of the working fluid [J/(kg K)] turbine cooling, additive manufacturing reff Effective pore radius [µm] rhv Hydraulic radius of the vapor core [m] NOMENCLATURE rn Nucleation...
Proceedings Papers

Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT15A020, June 7–11, 2021
Paper No: GT2021-60100
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-60100 COOLING PERFORMANCE OF ADDITIVELY MANUFACTURED PIN FINS IN STACKED MICROCHANNELS FOR THE INSIDE-OUT CERAMIC TURBINE SHROUD-COOLING RING P.K. Dubois1...
Proceedings Papers

Proc. ASME. GT2021, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy, V007T17A015, June 7–11, 2021
Paper No: GT2021-59755
... will also be discussed. (the roughness resulting from layer wise stacked 2D sections Keywords: Surface roughness, laser incidence angle, surface approximating of smooth 3D surface), b) waviness created by the orientation, additive manufacturing, selective laser melting partially overlapping individual melt...
Proceedings Papers

Proc. ASME. GT2021, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy, V007T17A002, June 7–11, 2021
Paper No: GT2021-58786
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-58786 MICROSTRUCTURE OF IN738LC FABRICATED USING LASER POWDER BED FUSION ADDITIVE MANUFACTURING Nandana Menon1, Tanjheel Hassan Mahdi2, and Amrita Basak1, 3...
Proceedings Papers

Proc. ASME. GT2021, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy, V007T17A004, June 7–11, 2021
Paper No: GT2021-58844
..., Berlin, Germany 2Karlsruhe Institute of Technology, Karlsruhe, Germany 3Technische Universität Berlin, Berlin, Germany ABSTRACT NOMENCLATURE Laser Powder Bed Fusion (L-PBF) enables the production of AM Additive Manufacturing complex metallic parts. Processes using pulsed wave (PW) laser radiation have...
Proceedings Papers

Proc. ASME. GT2021, Volume 5A: Heat Transfer — Combustors; Film Cooling, V05AT12A005, June 7–11, 2021
Paper No: GT2021-58991
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-58991 ADDITIVELY MANUFACTURED POROUS GEOMETRIES FOR HYBRID TURBINE COOLING Nathan D. Fier and David G. Bogard The University of Texas at Austin Walker Department...
Proceedings Papers

Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A004, September 21–25, 2020
Paper No: GT2020-14418
...Abstract Abstract The need for high performances is pushing the complexity of mechanical design at very high levels, especially for turbomachinery components. In this field, structural topology optimization methods together with additive manufacturing techniques for high resistant alloys...
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T18A006, September 21–25, 2020
Paper No: GT2020-14830
...Abstract Abstract Rapid prototyping and design advancements in aviation gas turbine engine components are being made possible through the laser-fusion powder-bed additive manufacturing processes. However, with improvements in design, a comprehensive understanding of the fatigue performance...
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T18A007, September 21–25, 2020
Paper No: GT2020-14842
... size reductions and rough surfaces. In this paper, dimensional metrology of cross-sectional views of multi-row microchannels made by additive manufacturing was conducted by a scanning electron microscope at different locations along the printing direction. Channel size reduction, surface roughness...
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T18A008, September 21–25, 2020
Paper No: GT2020-14874
... gas turbine component) by additive manufacturing (AM) technique using oxide dispersion strengthening (ODS) powder is presented. A novel combined mechanochemical bonding (MCB) plus ball milling (BM) process is utilized to produce ODS powders suitable for AM applications. AM-processed ODS coating...
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T18A002, September 21–25, 2020
Paper No: GT2020-14122
...Abstract Abstract The fatigue life behavior and internal surface conditions of inherently damped Additive Manufactured (AM) specimens subjected to vibration bending are under investigation. This study supports research that demonstrated 95% vibration suppression due to damping capability of AM...
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T20A030, September 21–25, 2020
Paper No: GT2020-16218
..., heat transfer from turbine to compressor, rotordynamic instability and manufacturing limitations. To overcome these obstacles, a novel gas turbine architecture is proposed based on conventional roller bearing technology that operates at up to 500,000 RPM and an additively manufactured monolithic rotor...
Proceedings Papers

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT27A006, September 21–25, 2020
Paper No: GT2020-14361
..., this plan for structural integrity assessment can serve as a reference for validation of future IBR repair processes. additive manufacturing additive repair rotor airfoil titanium turbine engines STRUCTURAL INTEGRITY ASSESSMENTS FOR VALIDATING DIRECTED ENERGY DEPOSITION REPAIRS OF INTEGRALLY...
Proceedings Papers

Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T05A016, September 21–25, 2020
Paper No: GT2020-15081
...AN ADDITIVELY MANUFACTURED FOUR SENSOR FAST RESPONSE AERODYNAMIC PROBE Alexandros Chasoglou1, Panagiotis Tsirikoglou3, Anestis Kalfas2, Reza Abhari1 1Laboratory for Energy Conversion, Department of Mechanical and Process Engineering, ETH Zurich, Switzerland 2Department of Mechanical Engineering...
Proceedings Papers

Proc. ASME. GT2020, Volume 7C: Heat Transfer, V07CT13A021, September 21–25, 2020
Paper No: GT2020-15406
...CFD MODELLING STRATEGIES FOR THE SIMULATION OF ROUGHNESS EFFECTS ON FRICTION AND HEAT TRANSFER IN ADDITIVE MANUFACTURED COMPONENTS Lorenzo Mazzei, Riccardo Da Soghe, Cosimo Bianchini Ergon Research, via Campani, 50, 50127 Firenze FI Italy lorenzo.mazzei@ergonresearch.it ABSTRACT It is well-known...