Accession Number : AD0489709

Title :   MACHINABILITY OF BERYLLIUM.

Descriptive Note : Final rept. 1 Mar-5 Nov 65,

Corporate Author : GENERAL ELECTRIC CO CINCINNATI OH FLIGHT PROPULSION DIV

Personal Author(s) : Glynn, Charles E. ; Bayer, Joseph

Report Date : OCT 1966

Pagination or Media Count : 82

Abstract : Machinability data are defined specifically for the manufacture and processing of turbine engine components made of beryllium material. Block pressed and forged beryllium forgings (Be + 3.2% BeO), being acceptable to machining damage, were critically investigated for the degree of damage caused by conventional and non-conventional machining practices. Turning and milling operations induced surface damage to excessive to be classified as finishing operations; grinding and electro-chemical machining experiments produced surfaces qualifiable for the manufacture of turbine engine components. Complete documentation of experiments are included along with recommendations and conclusions. (Author)

Descriptors :   *MAINTAINABILITY), (*BERYLLIUM, SODIUM COMPOUNDS, NITRATES, JET ENGINES, FORGING, ELECTROCHEMISTRY, ELECTRIC DISCHARGES, OXIDES, PRESSES(MACHINERY), ELECTROLYTES, TEST EQUIPMENT, STATISTICAL ANALYSIS, METALLOGRAPHY, GRINDING, ETCHING, TOLERANCES(MECHANICS), MATERIALS, REMOVAL.

Subject Categories : Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE