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WJ Supplements - 2006
RESEARCH PAPERS
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A potentially more efficient control scheme compared to traditional open loop systems is investigated. BY C. Balfour et al. Published January 2006 A search was made to find a way to accurately predict liquation cracking in aluminum, with the idea in mind to develop or select effective filler metals. BY G. Cao and S. Kou Published January 2006 A model was generated to predict fatigue stress at the toe of fillet welds. BY P. Darcis et al. Published January 2006 The controlled heat rate test was used to rank the crack resistance of several higher-strength alloys. BY M. D. Rowe Published February 2006 The restraining forces exerted during the GMAW process are calculated numerically and experimentally. BY M. A. Wahab et al. Published February 2006 Process parameters, fitup, and misalignment were examined as to their effects on weld quality. BY Y. Cho et al. Published March 2006 High-speed video synchronized with high-speed data acquisition was used to analyze droplet melting characteristics. BY D. D. Harwig et al. Published March 2006 The reliability of lead-free solder for use on semiconductor devices was investigated. BY J. Chang et al. Published March 2006 The microstructure and microchemistry of hard and soft zones in dissimilar weldments of Cr-Mo steels that underwent postweld heat treatment are reported. BY C. Sudha et al. Published April 2006 Analysis of active soldering of indium-tin-oxide sputtering targets to copper backing plates revealed that titanium actively segregates at the ITO/solder and copper/solder interfaces. BY S. Y. Chang et al. Published April 2006 An x-ray technique was used to investigate fatigue crack initiation and crack propagation of spot welded joints. BY G. Wang and M. E. Barkey Published April 2006 Mathematical models developed with response surface methodology proved useful for predicting and controlling FN in duplex stainless steel cladding. BY T. Kannan and N. Murugan Published May 2006 From this investigation, it appears making fillet welds in lap joints of aluminum are feasible with a laser. BY K. Howard et al. Published May 2006 This research pursued a more reliable way to predict cooling rates for a range of steel thicknesses welded with a number of different processes. BY J. E. Gould et al. Published May 2006 The effects of material type, part thickness, wedge prying angle, pitch distance, and weld button size on checking sensitivity were investigated. BY C. L. Tsai et al. Published June 2006 The susceptibility of deposited weld metal to cold cracking as a function of boron content was evaluated. BY H.W. Lee Published June 2006 Intact and aircraft impact-damaged welds from the exterior columns of the World Trade Center Towers were evaluated in order to learn lessons that can be used to improve future structures. BY S. W. Banovic and T. A. Siewert Published July 2006 An integrated experimental and numerical approach was used to examine the buckling phenomenon during the weld cooling cycle. BY C. L. Tsai et al. Published July 2006 An algorithm was used to evaluate chemical composition limits of selected GMAW electrode specifications for potential application to welding HSLA-100 steel. BY K. Sampath and R. Varadan Published August 2006 A defocused laser beam applied in front of a GMAW pool helped suppress formation of bead humping defects. BY H. W. Choi et al. Published August 2006 A geometrical sensing model was developed to detect the end points of joints in GMA fillet welds. BY W.-S. Yoo et al. Published August 2006 The propensity for buckling distortion was investigated for three different welding processes from welds made on HSLA-65 plate. BY S. R. Bhide et al. Published September 2006 Time and temperature limits in vacuum brazing titanium were evaluated by examining the microstructure and properties of filler metals. BY E. Y. Ivanov et al. Published September 2006 High-resolution techniques were used to examine the microstructures of shielded metal arc welds in the search for a filler metal composition that provides both high strength and good ductility. BY E. Keehan et al. Published September 2006 The structural stability of welds in 6Cr-Mo-V 8-3-2 and Xl2Cr-Mo-Nb 10-1 steels was studied to better understand the properties of heterogeneous weld joints in creep-resistant steels. BY R. Foret et al. Published October 2006 The mechanical properties of shielded metal arc welds with varying compositions of carbon, manganese, and nickel were studied to determine the optimal combination of strength and impact toughness. BY E. Keehan et al. Published October 2006 A study of deposit transfer and arc characteristics showed conventional, nonpulsing gas metal arc welding machines can produce quality weldments. BY A. Scotti et al. Published October 2006 A neural network trained with data from numerical heat and fluid flow models was developed to speed parameter calculations for gas tungsten arc welding. BY S. Mishra and T. DebRoy Published November 2006 Low-carbon, chromium ferritic steels were investigated for susceptibility to sensitization during continuous cooling after low-heat-input welding. BY M. L. Greeff and M. du Toit Published November 2006 Thin interlayers of niobium and aluminum were used to improve the properties of the joint between thicker plates. BY T. A. Palmer et al. Published November 2006 Porosity in cast aluminum welds was identified with inconsistent fatigue strength. BY L. Li et al. Published November 2006 A numerical model of pulsed gas metal arc welding accurately predicted weld pool fluid flow convection and final weld shape. BY M. H. Cho et al. Published December 2006 A new heat source model for plasma arc welding was developed to consider the configuration of the keyhole and the decay of heat intensity distribution along the workpiece thickness. BY C. S. Wu et al. Published December 2006 A comprehensive, computational model was developed that can predict and prevent the formation of humping defects. BY A. Kumar and T. DebRoy Published December 2006 The goal of this investigation was to determine the spot welding parameters and to characterize the mechanical properties of dissmilar metal joints. BY A. Kumar and T. DebRoy Published December 2006 |