Parallel gap welding Kovar ribbons to copper conductor printed wiring boards
Parallel gap welding Kovar ribbons to copper conductor printed wiring boards
Mc Daniel, G. E.↗
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Device for preventing high voltage arcing in electron beam welding Patent
Development of device to prevent high voltage arcing in electron beam welding
Hanchey, K. K.↗
Weld control system using thermocouple wire Patent
Control of fusion welding through use of thermocouple wire
Mccampbell, W. M.↗
Mechanical properties and LOX compatibility of stainless steel-clad titanium prepared by explosive welding and vacuum deposition Final report
Tensile and fatigue properties and liquid oxygen compatibility of bilaminate stainless steel-clad titanium prepared by vacuum deposition and explosive welding
Meiners, K. E.↗
Automatic welding speed controller Patent
Welding torch with automatic speed controller using speed sensing wheel and closed servo system
Wall, W. A., Jr.↗
Welding technology - A compilation
Innovations in technique of joining metals and means for handling difficult weld configurations
Source record↗
Welding skate with computerized control Patent
Development of apparatus for automatically changing carriage speed of welding machine to obtain constant speed of torch along work surface
Wall, W. A., Jr.↗
Development of explosive welding techniques for fabrication of regeneratively cooled thrust chambers for large rocket engine requirements Final report, 28 Jun. 1967 - 15 Sep. 1970
Explosive welding techniques in fabricating regeneratively cooled thrust chambers for large rocket engine requirements including ultrasonic inspection, metallography, and burst testing
Laber, D.↗
Practical method for diffusion welding of steel plate in air
Development of method of diffusion welding steel butt joints in air without vacuum furnace or hot press
Holko, K. H.↗
Specifications for cleaning, fusion welding, and postheating tantalum and columbium alloys
Specifications for cleaning, fusion welding, and postheating tantalum and niobium alloys
Bowles, K. J.↗
Enhanced diffusion welding of TD-NiC c]r sheet
Development of technique for diffusion welding of TD-NiCr metal sheets and analysis of mechanical properties
Holko, K. H.↗
Fabrication, spin testing and magnetic testing of a welded rotor in a 36000 RPM Lundell alternator
Inconel-steel, puddle-welded rotor spin and magnetic testing for use in 36,000 rpm Lundell alternator
Lumannick, S.↗
Welding and aging of bimetallic refractory metal joints
Bimetallic refractory metal joints electron beam welding and aging for applications to in-pile thermionic converters
Phillips, W. M.↗
Electron beam welding of tungsten to tungsten/rhenium and tungsten/rhenium to niobium
Electron beam welding of tungsten to tungsten/rhenium and tungsten/rhenium to niobium, discussing techniques for assembly of thermionic converter fuel elements
Raab, B.↗
Portable electron beam weld chamber
Development and characteristics of portable vacuum chamber for skate type electron beam welding are discussed. Construction and operational details of equipment are presented. Illustrations of equipment are provided.
Lewis, J. R.↗
Dye penetrant indications caused by superficial surface defects in 2014 aluminum alloy welds.
Demonstration that dye penetrant indications on the heat-affected zone of 2014-T6 aluminum GMA weldments are frequently caused by superficial surface conditions and are less than 0.007 in. deep. The following methods are suggested for minimization of these surface defects: stabilization of the arc, application of dc ?GTA' welding procedures, reduction of the caustic etch time, and use of fine grain materials.
Hocker, R. G.↗
X-ray opaque additive for inspection of weld joints
Thin coating of copper applied to each faying surface of aluminum-alloy improve X ray detection of welding defects. Copper may be applied by spraying, coating, or deposition. Its thickness of faying surfaces must be uniform in range. Coating must be free from spalling and blistering and must contain no porosity.
Brown, R. L.↗
Development of welded metal bellows having minimum effective diameter change
A program of analysis, design, and fabrication was conducted to develop welded metal bellows having a minimum change in effective diameter for cryogenic turbomachinery face seal applications. Linear analysis of the principle types of bellows provided identification of concepts capable of meeting basic operation requirements. For the 6-inch (.152 m) mean diameter, 1.5-inch free length bellows studied, nonlinear analysis showed that opposed and nested toroidal bellows plates stiffened by means of alternating stiffener rings were capable of maintaining constant effective diameter within 0.3% and 0.1% respectively under the operating conditions of interest. Changes in effective diameter were due principally to bellows axial deflection with pressure differential having a lesser influence. Fabrication problems associated with joining the thin bellows plates to the relatively heavy stiffener rings were encountered and precluded assembly and testing of a bellows core. Fabrication problems are summarized and recommended fabrication methods for future effort are presented.
Henschel, J. K.↗