Shoulder adapter steadies spot welding gun
Shoulder adapter fits on one end of a hand-held spot welding gun. With the adapter, the operator can hold the gun steadily at uniform pressure to ensure defect-free welds.
Love, T. H.↗
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Tool provides constant purge during tube welding
Tool provides a constant purge of inert gas during in-place welding of tubular components to prevent contamination and oxidation. It also permits self-jiggings of the tube and sleeve to be welded.
Lang, E. R.↗
Simple device facilitates inert-gas welding of tubes
Metal Y-tube simultaneously directs argon streams over weld areas on both sides of tubes being joined along a line on their outer periphery. The device is advanced along the junction in step with the welding operation.
Carrithers, K. V.↗
Electron beam welding of copper-Monel facilitated by circular magnetic shields
High permeability, soft magnetic rings are placed on both sides of electron beam weld seams in copper-Monel circular joint. This eliminates deflection of the electron beam caused by magnetic fields present in the weld area.
Lamb, J. N.↗
Inflatable holding fixture permits X-rays to be taken of inner weld areas
Inflatable rubber gland positions and holds X ray film in positive contact with inner weld areas of mainfold torus assemblies for verifying the weld quality. The gland is constructed to conform to the inside diameter of the manifold torus.
Hendrickson, D. R.↗
New backup-bar groove configuration improves heliarc welding of 2014-T6 aluminum
Backup chill bar with new grooved dimensions improve welding of 2014-T6 aluminum. This groove geometry affords optimum chilling characteristics, reduces shrinkage and the weld bead is narrower and consistently free from impurities or voids.
Black, F. J.↗
Heat treatment stabilizes welded aluminum jigs and tool structures
Heat treatment processes, applied after welding but before machining, imparts above normal stability to welded aluminum jigs and tool structures. Weight saving will not be realized in these tools if rigidity equal to that of a comparable steel tool is required.
Mehnert, R. S.↗
Tests show that aluminum welds are improved by bead removal
Tests with 2218-T87 aluminum alloy plate indicate improvements in strength, ductility, fatigue properties, and burst pressure result when one or both of the top and bottom weld beads are removed. There is, however, a drop in yield strength. The consistency of test data is considerably improved by weld bead removal.
Hood, D. W.↗
Composite weld rod corrects individual filler weaknesses
Composite filler wire welds together an assembly made from components of Rene 41 nickel base alloy. Using equal parts of Rene 41 and Hastelloy W weld wire in the filler reduces the cracking and weaknesses of the individual parent metals.
Grimaldo, S.↗
Workmanship standards for fusion welding
Workmanship standards manual defines practices, that adhere to rigid codes and specifications, for fusion welding of component piping, assemblies, and systems. With written and pictorial presentations, it is part of the operating procedure for fusion welding.
Phillips, M. D.↗
Welding of AM350 and AM355 steel
A series of tests was conducted to establish optimum procedures for TIG welding and heat treating of AM350 and AM355 steel sheet in thicknesses ranging from 0.010 inch to 0.125 inch. Statistical analysis of the test data was performed to determine the anticipated minimum strength of the welded joints.
Davis, R. J.↗
Portable spectrometer monitors inert gas shield in welding process
Portable spectrometer using photosensitive readouts, monitors the amount of oxygen and hydrogen in the inert gas shield of a tungsten-inert gas welding process. A fiber optic bundle transmits the light from the welding arc to the spectrometer.
Grove, E. L.↗
Test device prevents weld joint damage by eliminating axial pin forces on unpotted modules
Test device makes electrical connection to pins on unpotted electronic modules without introducing any displacing forces of the pins, thus preventing weld joint damage. The pins are spaced in a potting header, but are free to slide in and out except for restraint from welded wire joints.
Cree, R. E.↗
Welding torch and wire feed manipulator
Welding torch and wire feed manipulator increase capability for performing automatic welding operations. The manipulator rotates on its horizontal axis to avoid obstacles as they approach the torch. The initial individual attitudes of the torch and wire guide are set with respect to the general configuration of the part.
Williams, R. T.↗
Mechanical shielding reduces weld surface cracking in 6061 T6 aluminum
Mechanical shield of high melting point material protects 6061-T6 aluminum welded with high frequency ac tungsten arc equipment. It is held in place around the weld bead area and eliminates heat check cracks.
Hill, J. E.↗
Welding of commercial base plates is investigated
Investigation of aluminum alloy welds reveals that the combinations of metallic elements with hydrogen are not capable of producing weld porosity themselves, rather they tend to increase the amount of porosity only in the presence of arc contamination by water vapor.
Cheever, D. L.↗
Weld microfissuring in Inconel 718 minimized by minor elements
Manganese, silicon, and magnesium markedly reduce the tendency of Inconel 718 to weld microfissuring. By combining a manganese, 0.20 percent by content, with silicon, greater than 0.25 percent content, or by adding 20 ppm of magnesium, the weld microfissuring decreased in the standard alloy.
Morrison, T. J.↗
Establishment of parameters and limitations of explosive welding Final report, 27 Jun. 1964 - 27 Jul. 1965
Explosive welding using PETN for welding aluminum sheets
Polhemus, F. C.↗