PROGRAM FOR THE DEVELOPMENT OF EXTRUDED BERYLLIUM SHAPES. Interim Engineering Report No. 10, September 1, 1960 through November 30, 1960

Technical Report · Tue Oct 31 04:00:00 EST 1961

OSTI ID:4077898

A summary of activities in Phase I of the beryllium extrusion program is presented. The feasibility of unclad beryllium sxtrusions was demonstrated; however, additional work was considered necessary to perfect extrusion methods to the degree where 20 ft of defect-free section could be fabricated. Recent efforts directed toward the development of a 20-ft extrusions resulted in a 26-ft- long extrusion with few defects. This represents the longest extrusion to date. It had not been possible to establish a reasonable degree of consistency, and this lack of consistency was attributed to ths rather low top speed of the Nuclear Metals press. Because of this, arrangements were made to have an exploratory extruding effort performed through Nuclear Metals at another facility with a newer and more adequate press. The results of high ram speed tests were quite favorable. For the first time in the program reproducible results were obtained with set conditions. The consistent and very rapid speed of the ram minimized the variations of temperature which would otherwise have occurred. Three consecutive 11-ft-long beryllium extrusions were made without a tearing defect. The next item of effort will be to further refine the process and to establish means of increasing the quality product to a full desired 20 ft. (For preceding period see NOR

• Research Organization: Northrop Aircraft, Inc., Hawthorne, Calif.
• NSA Number: NSA-15-013309
• OSTI ID: 4077898
• Report Number(s): NOR-61-6
• Country of Publication: United States
• Language: English

Related Subjects

DEFECTS
EFFICIENCY
EXTRUSION
METALS, CERAMICS, AND OTHER MATERIALS
PERFORMANCE
RODS
TEMPERATURE
VARIATIONS
VELOCITY