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Keywords: additive manufacturing
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Journal Articles

Performance Evaluation of Additively Manufactured and Hybrid Indexable Milling Tools in Machining of AISI4140+QT and Ti-6Al-4V

Tobias Kelliger, Markus Meurer, Thomas Bergs
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2024, 146(3): 031013.
Paper No: GTP-23-1393
https://doi.org/10.1115/1.4063553
Published Online: November 21, 2023
...Tobias Kelliger; Markus Meurer; Thomas Bergs Additively manufactured (AM) cutting tools enable new design concepts in tool development concerning lightweight construction, damping behavior, and internal cutting fluid supply. So far, the impact of the layer-by-layer manufacturing technique onto...
View Article titled, Performance Evaluation of <span class="search-highlight">Additively</span> <span class="search-highlight">Manufactured</span> and Hybrid Indexable Milling Tools in Machining of AISI4140+QT and Ti-6Al-4V
Open the PDF for Performance Evaluation of <span class="search-highlight">Additively</span> <span class="search-highlight">Manufactured</span> and Hybrid Indexable Milling Tools in Machining of AISI4140+QT and Ti-6Al-4V in another window
Topics: Additive manufacturing, Cutting, Machining, Milling, Wear, Manufacturing, Machine tools, Geometry, Mechanical properties, Surface roughness
Journal Articles

Ceramic and Metal Additive Manufacturing of Monolithic Rotors From SiAlON and Inconel and Comparison of Aerodynamic Performance for 300W Scale Microturbines

Lukas Badum, Thomas Prochaska, Martin Schwentenwein, Beni Cukurel
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2024, 146(2): 021006.
Paper No: GTP-23-1404
https://doi.org/10.1115/1.4063421
Published Online: October 25, 2023
... and Inconel 718 are especially desirable for turbomachinery applications due to their high strength and high-temperature capabilities. To demonstrate the viability of additive manufacturing for small-scale turbomachinery for 300W scale microturbines, a monolithic rotor with a design speed of 450,000 RPM...
View Article titled, Ceramic and Metal <span class="search-highlight">Additive</span> <span class="search-highlight">Manufacturing</span> of Monolithic Rotors From SiAlON and Inconel and Comparison of Aerodynamic Performance for 300W Scale Microturbines
Open the PDF for Ceramic and Metal <span class="search-highlight">Additive</span> <span class="search-highlight">Manufacturing</span> of Monolithic Rotors From SiAlON and Inconel and Comparison of Aerodynamic Performance for 300W Scale Microturbines in another window
Topics: Rotors, Compressors, Additive manufacturing, Manufacturing, Turbines, Microturbines
Journal Articles

A Calibration Approach for Accelerated Creep Testing for Electron Beam Melted Ti-6Al-4V Using the Wilshire–Cano–Stewart Model

Md Abir Hossain, Jacob T. Pellicotte, Calvin M. Stewart
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2023, 145(11): 111013.
Paper No: GTP-23-1309
https://doi.org/10.1115/1.4063310
Published Online: September 29, 2023
.... , Jared , B. H. , and Schindelholz , E. J. , 2020 , “ How Build Angle and Post-Processing Impact Roughness and Corrosion of Additively Manufactured 316 L Stainless Steel ,” NPJ Mater. Degrad. , 4 ( 1 ), p. 21 . 10.1038/s41529-020-00126-5 [2] Meli , E. , Rindi...
View Article titled, A Calibration Approach for Accelerated Creep Testing for Electron Beam Melted Ti-6Al-4V Using the Wilshire–Cano–Stewart Model
Open the PDF for A Calibration Approach for Accelerated Creep Testing for Electron Beam Melted Ti-6Al-4V Using the Wilshire–Cano–Stewart Model in another window
Topics: Calibration, Creep, Stress, Cathode ray oscilloscopes, Electron beams, Rupture
Journal Articles

Review of Turbine Cooling Technologies

Dariusz Olczak, Maciej Jaworski
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Review Articles
J. Eng. Gas Turbines Power. September 2023, 145(9): 090801.
Paper No: GTP-22-1629
https://doi.org/10.1115/1.4062562
Published Online: July 19, 2023
... and heat transfer mechanisms occurring in modern gas turbines, including different types of turbulence promoters, impingement, film cooling, microcooling, and the impact of recent applications of additive manufacturing. 1 Corresponding author. e-mail:  dariusz.olczak.dokt@pw.edu.pl e...
View Article titled, Review of Turbine Cooling Technologies
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Topics: Cooling, Turbines, Film cooling, Flow (Dynamics), Heat transfer
Journal Articles

Characterization of Properties of Laser Powder Bed Fusion Three-Dimensional-Printed Inconel 718 for Centrifugal Turbomachinery Applications

Hannah G. Lea, Rochelle S. Wooding, Sam Kuhr, John Rotella, José Luis Córdova
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2023, 145(6): 061017.
Paper No: GTP-22-1362
https://doi.org/10.1115/1.4056794
Published Online: February 15, 2023
...Hannah G. Lea; Rochelle S. Wooding; Sam Kuhr; John Rotella; José Luis Córdova This paper presents the results of a comprehensive effort to characterize the properties of Inconel 718 produced by a form of laser powder bed fusion (LPBF) additive manufacturing (AM) or three-dimensional (3D)-printing...
View Article titled, Characterization of Properties of Laser Powder Bed Fusion Three-Dimensional-Printed Inconel 718 for Centrifugal Turbomachinery Applications
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Topics: Additive manufacturing, Creep, High cycle fatigue, Lasers, Mechanical properties, Rupture, Temperature, Testing, Stress, Blanks
Journal Articles

Analyses of Damping Sustainability of Additively Manufactured Nickel Alloy Components Subjected to High Strain Loading Cycles

John P. Hollkamp, Onome Scott-Emuakpor, Dino Celli
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2023, 145(3): 031011.
Paper No: GTP-22-1462
https://doi.org/10.1115/1.4055579
Published Online: December 5, 2022
.... Control Health Monit. , 25 ( 1 ), p. e2058 . 10.1002/stc.2058 [15] Schmitz , T. , Betters , E. , and West , J. , 2020 , “ Increased Damping Through Captured Powder in Additive Manufacturing ,” Manuf. Lett. , 25 , pp. 1 – 5 . 10.1016/j.mfglet.2020.05.003 [16...
View Article titled, Analyses of Damping Sustainability of <span class="search-highlight">Additively</span> <span class="search-highlight">Manufactured</span> Nickel Alloy Components Subjected to High Strain Loading Cycles
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Topics: Damping, Particulate matter, Sustainability, Lasers, Additive manufacturing, Dampers
Journal Articles

Dimensional Characterizations Using Scanning Electron Microscope and Surface Improvement With Electrochemical Polishing of Additively Manufactured Microchannels

Zheng Min, Yingjie Wu, Kailai Yang, Jin Xu, Sarwesh Narayan Parbat, Minking K. Chyu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2021, 143(4): 041020.
Paper No: GTP-20-1735
https://doi.org/10.1115/1.4049908
Published Online: February 26, 2021
... cooling devices. Recent development of metallic additive manufacturing (AM) based on direct metal laser sintering technology is capable of fabricating microscale structures with high complexity and design flexibility. However, powder bed laser sintering process produces rough surface characteristics...
View Article titled, Dimensional Characterizations Using Scanning Electron Microscope and Surface Improvement With Electrochemical Polishing of <span class="search-highlight">Additively</span> <span class="search-highlight">Manufactured</span> Microchannels
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Topics: Additive manufacturing, Electrolytic polishing, Microchannels, Printing, Scanning electron microscopes, Surface roughness
Journal Articles

New Insights From Conceptual Design of an Additive Manufactured 300 W Microgas Turbine Toward Unmanned Aerial Vehicle Applications

Lukas Badum, Boris Leizeronok, Beni Cukurel
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2021, 143(2): 021006.
Paper No: GTP-20-1454
https://doi.org/10.1115/1.4048695
Published Online: January 18, 2021
..., component efficiency, and system electric efficiency. Thereby, a reduced design pressure ratio of 2.5 with 1200 K turbine inlet temperature (TIT) is identified as most suitable for 300 W electric power output. In following, a review of available additive manufacturing technologies yields material properties...
View Article titled, New Insights From Conceptual Design of an <span class="search-highlight">Additive</span> <span class="search-highlight">Manufactured</span> 300 W Microgas Turbine Toward Unmanned Aerial Vehicle Applications
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Topics: Additive manufacturing, Bearings, Compressors, Cycles, Design, Generators, Pressure, Rotors, Temperature, Turbines