NDLI: Energy efficient engine shroudless, hollow fan blade technology report

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Energy efficient engine shroudless, hollow fan blade technology report

Content Provider	NASA Technical Reports Server (NTRS)
Author	Michael, C. J.
Copyright Year	1981
Description	The Shroudless, Hollow Fan Blade Technology program was structured to support the design, fabrication, and subsequent evaluation of advanced hollow and shroudless blades for the Energy Efficient Engine fan component. Rockwell International was initially selected to produce hollow airfoil specimens employing the superplastic forming/diffusion bonding (SPF/DB) fabrication technique. Rockwell demonstrated that a titanium hollow structure could be fabricated utilizing SPF/DB manufacturing methods. However, some problems such as sharp internal cavity radii and unsatisfactory secondary bonding of the edge and root details prevented production of the required quantity of fatigue test specimens. Subsequently, TRW was selected to (1) produce hollow airfoil test specimens utilizing a laminate-core/hot isostatic press/diffusion bond approach, and (2) manufacture full-size hollow prototype fan blades utilizing the technology that evolved from the specimen fabrication effort. TRW established elements of blade design and defined laminate-core/hot isostatic press/diffusion bonding fabrication techniques to produce test specimens. This fabrication technology was utilized to produce full size hollow fan blades in which the HIP'ed parts were cambered/twisted/isothermally forged, finish machined, and delivered to Pratt & Whitney Aircraft and NASA for further evaluation.
File Size	26523510
Page Count	106
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19820013322
Archival Resource Key	ark:/13960/t1wd8pk25
Language	English
Publisher Date	1981-12-01
Access Restriction	Open
Subject Keyword	Aircraft Propulsion And Power Fabrication Turbomachine Blades Superplastic Forming Turbine Blades Energy Technology Engine Design Titanium Turbofan Engines Product Development Power Efficiency Manufacturing Turbojet Engines Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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