QUARTERLY PROGRESS SUMMARY ON METALLURGY , JULY-SEPTEMBER 1963

Technical Report · Fri Dec 27 04:00:00 EST 1963

OSTI ID:4096600

Uranium Fabrication-- Mark V-B. A clean up study and the factors affecting the machining clean up revealed that the economy of the extrusion of Mark V-B tubing could be improved significantly by reducing the amount of overstock on the extrusions. Although experimental conditions revealed further improvement is possible, an immediate reduction of the finished stock from the present 0.125 deg to 0.075'' could be accomplished without any substantial increase in the rejection rate. Uranium Forming Development. Examination of current extrusion tooling revealed poor control over the incoming metallurgical structures of tool steels as well as the utilization of tool steels above their capabilities. NPR Billet Development. An experiment to increase the amount of working on the ID for the primary extrusion of NPR-NOE ingots revealed no improvement from the variable investigated. Basic Scoping Investigations. A temperature sensing instrument has been found that will meet the requirements established for process control on the die head end of the extrusion press. This instrument, the Infra-Red Eye, is a two-color pyrometer which eliminates the emissivity from the temperature reading. Laboratory Investigations. A limited physical property study of low additive uranium indicates the possibility of lowering the temperature of the oil bath utilized for preheating extruded tubes prior to straightening. NPR Production. A study conducted in conjunction with the production effort on NPR extrusion revealed the superiority of the chamfered ingots over the square end ingots in the resulting extrusion concentricity and straightness. (auth)

• Research Organization: Bridgeport Brass Co., Seymour, Conn.
• NSA Number: NSA-18-008764
• OSTI ID: 4096600
• Report Number(s): BRB-79
• Country of Publication: United States
• Language: English

Related Subjects

CLEANING
COLOR
CONFIGURATION
CONTROL
DIES
EXTRUSION
FABRICATION
HEATING
INFRARED RADIATION
MACHINING
METALS, CERAMICS, AND OTHER MATERIALS
NPR
OILS
PRODUCTION
PYROMETERS
REACTORS
RODS
STEELS
TEMPERATURE
THERMOCOUPLES
THERMOMETERS
TOOLS
TUBES
URANIUM