Accession Number : ADA333530

Title :   Manufacturing Research at MSFC. Research Achievements Review, Series No. 8

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON DC

PDF Url : ADA333530

Report Date : 29 DEC 1997

Pagination or Media Count : 54

Abstract : Research achievements applicable to the production of Saturn V components are described. Leakage at the mechanical connections in high-pressure lines has been minimized or eliminated through the use of precisely flared tubes. A technique of 'aging' or heat-treatment hardening of aluminum materials has been used to form cylindrical-tank segments and double-contoured gore segments precisely, and to remove weld distortions. The control of weld porosity has been improved as a result of research which demonstrated the close correlation between electrical energy input per inch of weld and weld porosity and metallurgical quality. Control techniques for milling by chemical etching have been developed. As a consequence, chemical milling has been used extensively for Saturn V gore segments. This report reviews manufacturing research achievements which are being used today to assist in the production of Saturn V components.

Descriptors :   *MANUFACTURING, *WELDING, *ROCKET COMPONENTS, AGING(MATERIALS), ETCHING, POROSITY, HEAT TREATMENT, ALUMINUM, FUEL TANKS, HARDENING, CHEMICAL MILLING.

Subject Categories : Metallurgy and Metallography
      Mfg & Industrial Eng & Control of Product Sys
      Rockets

Distribution Statement : APPROVED FOR PUBLIC RELEASE