DEVELOPMENT OF EXTRUDED BERYLLIUM SHAPES. Interim Engineering Report No. 11, December 1, 1960 through February 28, 1961

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

OSTI ID:4051626

A summary is given of the progress of the beryllium extrusion program. The major problems of beryllium extrusion were investigated. The feasibility of unclad beryllium extrusions was demonstrated, but additional work was considered necessary to perfect extrusion methods to the degree where a full 20 feet of defect free section could be reliably and repetitively fabricated. Ten to twelve- foot lengths of defect free material were produced occasionally. The most recent efforts were directed toward the development of the full 20 feet and the extrusion from Push No. 135 resulted in a 26-foot long extrusion with only a few defects. This represents the longest extrusion to date. It was not possible to establish a reasonable degree of consistency and this lack of consistency was attributed to the rather low top speed of the press. Because of this, arrangements were made to have an exploratory extruding effort performed with a newer and more adequate press. After review of a number of possible extruding facilities, planning of adequate toxicity safeguards, and adaptation of tooling to a new press, extruding efforts were made. The first series of efforts showed considerable promise of satisfactory results. Later efforts were not so successful. (auth)

• Research Organization: Norair. Div. of Northrop Corp., Hawthorne, Calif.
• NSA Number: NSA-15-016013
• OSTI ID: 4051626
• Report Number(s): NOR-61-66
• Country of Publication: United States
• Language: English

Related Subjects

BERYLLIUM
DEFECTS
EXTRUSION
METALS, CERAMICS, AND OTHER MATERIALS
RODS
SAFETY
TOOLS
TOXICITY