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Development of an advanced microelectronic connection welding system Final report
Development of microelectronic connection welding system using infrared feedback control
Welding a thermocouple gauge to Apollo Lunar Sample Return Containers
Thermocouple vacuum gauge joined to Apollo lunar sample return containers /ALSRC/, describing two step welding procedure with transition cylinder
Welding columbium-stainless bimetal tubing
Welding techniques for Nb-stainless steel bimetal tubing for liquid metal containment, determining structural integrity and bond interface condition after thermal cycling
Effects of porosity on mechanical properties of aluminum welds
Porosity effects on mechanical properties of Al alloy gas tungsten arc welds, noting strength loss proportional to cross sectional area loss
Evaluation of electron-beam welded hollow balls for high-speed ball bearings
Hollow balls for high speed bearings by electron beam welding, describing full scale and rolling element fatigue tests
Solid-state welding of TD-nickel bar
Solid state butt and lap joint welding of TD- nickel bar, evaluating performance by stress rupture and shear tests
Evaluation of electron-beam welded hollow balls for high-speed ball bearings
Electron beam welded hollow balls for high speed ball bearings, comparing fatigue life with solid balls
Parallel-gap welding for joints between copper conductors and Kovar
Welding technique produces more reliable joints than soldering. Investigation used different sizes of copper conductors and component lead ribbons, corrosion protection platings, and melting points of metals being joined. Optimum combination is gold-plated component lead ribbons and solder-plated copper conductors.
Device prepares aluminum surfaces for welding
Dry machining technique removes original surfaces to obtain contamination free welding surface. Device straddles edge being prepared and aligns with existing edges and adjacent surfaces of workpiece while sensing device regulates cut depth. Description of prototype is given.
Weld beveling of large-diameter pipes
Technique employs electric drill and newly developed special jig to J-bevel, in the field, ends of pipes measuring between 15.24 cm and 45.72 cm in diameter in preparation for welding. Jig's construction and operation are described.
Practical method of diffusion-welding steel plate in air
Method is ideal for critical service requirements where parent metal properties are equaled in notch toughness, stress rupture and other characteristics. Welding technique variations may be used on a variety of materials, such as carbon steels, alloy steels, stainless steels, ceramics, and reactive and refractory materials.
Optimized techniques and requirements for computer improvement of structural weld radiographs
Hardware and software specification covers requirements for using subroutines to improve structural weld photographs.
Closed-circuit television arc guidance adapter kit for a computerized welding skate Final report
Closed circuit television arc guidance adapter kit for computerized welding skate
Apparatus for welding torch angle and seam tracking control Patent
Computer controlled apparatus for maintaining welding torch angle and velocity during seam tracking
Spectral method for monitoring atmospheric contamination of inert-gas welding shields Patent
Emission spectroscopy method for contamination monitoring of inert gas metal arc welding
Determination of spot weld quality Patent
Nondestructive radiographic tests of resistance welds