Cryogenic propellant rocket engine hardware and the related test facilities will be described. Methods used for selection of alloys for liquid oxygen and liquid hydrogen service will be discussed. Unique equipment and welding procedures are reviewed with emphasis on welding problems and their solutions to assure reliable hardware and facilities. Examples of specific welding procedures and methods of quality assurance will be given for joining application ranging in size from .001" to 11" thick sections.
Original is a photocopy; W. A. Wilson, Chairman; Russell Meredith, North American Aviation; Robert Hackman, Linde Company; Frank Wallace, Pratt-Whitney Aircraft; P.G. Parks, NASA, MSFC; G. O. Hoglund, Aluminum Company of America.
A sensitive new television X-ray image enlargement system has been developed under sponsorship of Watertown Arsenal Laboratories (Army Materials Research Agency) by the Department of Welding Engineering of The Ohio State University. Now commercially-available through Philips Electronics Instruments (Norelco), complete systems have been in service since January 1963 in aerospace, electronic, and other facilities. Such users report highly- satisfactory performance and unusual reliability in service. The new X-ray system permits in-motion or stationary examination of critical aerospace materials, components, and systems such as sheet materials, weldments, brazed joints, electronic components, printed circuit assemblies, small mechanisms, and biological specimens.