Fingertip current control facilitates use of arc welding gun
Fingertip-operated trigger accurately controls the current supplied to an arc welding gun. The trigger is mounted directly on the handle of the gun.
Roth, B.↗
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Portable power tool machines weld joints in field
Portable routing machine for cutting precise weld joints required by nonstandard pipe sections used in the field for transfer of cryogenic fluids. This tool is adaptable for various sizes of pipes and has a selection of router bits for different joint configurations.
Spier, R. A.↗
Ultrasonic recording scanner used for nondestructive weld inspection
Portable ultrasonic recording scanner is used for nondestructive inspection of welds. It is adaptable to continuous operation in one direction while maintaining oscillatory motion at a right angle to this direction. The scanning speed and oscillation frequency are independently adjustable.
Source record↗
Pressure-welded flange assembly provides leaktight seal at reduced bolt loads
Vibration resistant flange-connector assembly provides a leaktight seal under reduced bolt loads. The assembly consists of ductile metal plates that are pressure welded between dies mounted in recessed flanges.
Martenson, A. J.↗
Electrical upsetting of metal sheet forms weld edge
Electric gathering of sheet stock edges forms metal sheets in the shape of gore sections with heavier edge areas that can be welded without loss of strength. The edges are gathered by progressive resistance heating and upsetting, and are formed automatically. This process avoids disturbance of the metals internal structure.
Scherba, E. S.↗
Ultrasonic hand tool allows convenient scanning of spot welds
Small, portable, electrically powered hand tool, coupled with auxiliary ultrasonic equipment, allows convenient scanning of spot welds for discontinuities.
Mitchell, D. K.↗
Suppressor plate eliminates undesired arcing during electron beam welding
Suppressor grid eliminates undesired arcing during electron beam welding in one of two ways. A grid at ground potential collects secondary emission of ions and electrons produced by the beam as it strikes the workpiece, or a negatively energized grid repels the plasma arc back to the workpiece. This eliminates ground screens used to cover view ports.
Hanchey, K. K.↗
Nonhazardous acid etches weld samples
Nonhazardous citric acid solution used with 24 volt dc power supply etches weld samples. This etching method is limited to 300 stainless steel and a small range of other high temperature alloys.
Allen, B. C↗
Flexible drive allows blind machining and welding in hard-to-reach areas
Flexible power and control unit performs welding and machining operations in confined areas. A machine/weld head is connected to the unit by a flexible transmission shaft, and a locking- indexing collar is incorporated onto the head to allow it to be placed and held in position.
Harvey, D. E.↗
Plug replaces weld filler as seal in complex casting
Expandable metal plug is inserted to provide a seal to support the mold core with small blocks, referred to as chaplets, during the casting of a complex volute. Weld-warpage and multiple X ray inspection are eliminated by use of this technique.
Goundrey, R. L.↗
Opposed arcs permit deep weld penetration with only one pass
Arc welding technique uses opposed electrodes on either side of the workpiece, operated in right angles, out-of-phase, pulsating direct current. complete penetration has been obtained with this technique in metals ranging from 0.062 to 1.0 inch thickness.
Budds, L. E.↗
Ultrasonic water column probe speeds up testing of welds
Ultrasonic device consisting of a coaxial rod and transducer enclosed in a cylindrical probe which is filled with deionized or distilled water speeds up the testing of welds. Rubber diaphragm is molded to produce the desired test beam angle.
Hoop, J. M.↗
Quality control criteria for acceptance testing of cross-wire welds
Visual inspection criteria assure the metallurgical integrity of spot welds joining nickel leads and nickel ribbon in a 90 degree cross-wire configuration.
Bryant, R. D.↗
A fast and economical technique for welded cordwood electronic module fabrication
Construction technique for welded cordwood electronic module fabrication
ELECTRONIC MODULE↗
Report on explosive sizing of 70-inch diameter welded aluminum preforms from 5086, 2014 T4 and 2014 T6 material Final report, 5 Dec. 1961 - 30 Mar. 1962
Explosive sizing of 70-inch diameter welded aluminum preforms and tool design of explosive form die
ALUMINUM↗
Fixture facilitates helium leak testing of pipe welds
Fixture facilitates inspection testing of circumferential pipe welds for vacuum tightness, using helium gas as a leakage tracer in conjunction with a mass spectrometer. It consists of a split rubber torus and a mating clamping ring with a vacuum hose fitting.
Roney, J. A.↗
Continuous internal channels formed in aluminum fusion welds
Process produces continuous internal channel systems on a repeatable basis in 2014-T6 aluminum. Standard machining forms the initial channel, which is filled with tungsten carbide powder. TIG machine fusion welding completes formation of the channel. Chem-mill techniques enlarge it to the desired size.
Gault, J.↗
Welding, bonding, and sealing of refractory metals by vapor deposition
Plating process welds, bonds, and seals refractory metals without weakening or changing the structure of the base metals. A metal halide compound in the vapor phase is decomposed to deposit filler metal on the base metal. The resulting bond is a true metal-to-metal bond.
Source record↗