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WJ Supplements - 2007
RESEARCH PAPERS
Research Papers posted are available in PDF format ONLY.
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A method using single-layer welds proved useful for estimating HAZ toughness of construction structural steels BY H. Furuya et al. Published 01/07 A variety of time of flight techniques were evaluated for measuring weld penetration depth BY A. Kita et al. Published 01/07 Two advanced high-strength steels were studied to determine the critical fusion zone size for nugget pullout. BY X. Sun et al. Published 01/07 A real-number-based genetic algorithm and a neural network can be used to quickly determine the welding variable combinations needed to achieve a target gas metal arc fillet weld geometry. BY A. Kumer et al. Published 01/07 A methodology was developed to predict fusion depth and width in gas metal arc welding BY N. Okui et al. Published 02/07 Weld joints in structural steelss were examined to determine HAZ toughness, then correlated to the steels' chemical composition. BY H. Furuya et al. Published 02/07 Concentration gradients were used to explain the differences in martensite layer widths in the partially mixed zone of dissimilar welds. BY J. N. DuPont and D. S. Kusko Published 02/07 Laser Engineered Net Shaping was investigated as a means of producing a mechanically sound weld that functions in elevated-temperature service. BY J. D. Farren et al. Published 03/07 A lubricant was found that almost doubles the electrode life of a nonlubricated surface. BY M. Rashid et al. Published 03/07 Laser Engineered Net Shaping was investigated as a means of producing a mechanically sound weld that functions in elevated-temperature service. D. Kim et al. Published 03/07 A study was conducted to systematically investigate the effects of aluminum sheet surface conditions on electrode life. BY Z. Li et al. Published 04/07 A new system based on charge-coupled device sensors was developed to effectively track weld joints BY J. X. Xue et al. Published 04/07 A 16-run fractional factorial experiment was used to analyze the effects of nine friction stir welding input parameters on measured process outputs. BY J. H. Record et al. Published 04/07 The effect off nitrogen addition on the tendency for crater cracks to develop was evaluated BY D. D. Nage and V. S. Raja. Published 04/07 The electron beam process overcomes problems associated with welding magnesium BY C. Chi et al. Published 05/07 The solid-state, heat-free characteristics of magnetic pulse welding make it an attractive process for joining dissimilar metals BY T. Aizawa et al. Published 05/07 This study compares the mechanical properties of three supermartensitic pipe steels welded with different consumables and conditions BY J. E. Ramirez Published 05/07 Quadratic models developed in terms of flux ingredients help predict the transfer of certain elements into the weld pool BY P. Kanjilal et al. Published 05/07 Pulse frequency affected the yield strength and fracture path of pulsed gas metal arc welded Al-Cu-Li specimens BY G. Padmanabham et al. Published 06/07 The steels showed similar overall welding behavior with both hot dipped galvanneal and galvanized coatings BY M. Tumuluru Published 06/07 The effect of chromium on the hydrogen cracking susceptibility of Fe-Al weld cladding was investigated. BY J. R. Regina et al. Published 06/07 Use of an ytterbium ffiber-optic laser was examined for low-speed keyhole welding of heat-treatable aluminum. BY A. G. Paleocrassas et al. Published 06/07 Experimental trials indicated friction stirr welding is a technically feasible processs to join high-strength steel. BY P. J. Konkol et al. Published 07/07 Penetration and bead width were shown to increase with the percentage of electrode positive polarity during unbalanced square wave AC welding. BY M. A. R. Yarmuch et al. Published 07/07 The slope of the material's connection plane with respect to the normal plane of the plate was studied for its effect on stress distribution BY Z. Abdulaliyev et al. Published 07/07 Phase and structrual transformations of diffusion welds were examined for factors responsible for joint quality. BY V. V. Rybin et al. Published 07/07 Phase and structrual transformations of diffusion welds were examined for factors responsible for joint quality. BY A. D. Zervaki et al. Published 08/07 The presence of oxygen n the shielding gas was shown to increase the weld metal nitrogen content, stabilize the arc, suppress degassing, and curb porosity BY M. Du Toit et al. Published 08/07 A novel welding process adds a GTAW torch to a conventional GMAW system to create a bypass arc for increase melting current and a controlled base current BY K. H. Li et al. Published 08/07 An algorithm was designed to maintain complete joint penetration while maximizing productivity by using the fatest weld speed BY M. Ericsson et al. Published 08/07 Measurements were made of the effects of helium on the weldability of Types 304 and 31LN stainless steels BY M. H. Tosten et al. Published 08/07 The addition of laser heat to the gas metal arc processs was examined as a method to suppress deposit undulations BY M. H. Cho and D. F. Farson Published 09/07 Overload Failure of truss connections in the WTC collapse went through the heat-affected zone of the base metal. BY S. W. Banovic and T. A. Siewert Published 09/07 Calcite and fluoride compounds were added to the flux composition to see their influence on hydrogen levels. BY J. du Plessis et al. Published 09/07 A method of fusion welding superaustenitic stainless steels holds promise for circumventing corrosion and cracking problems. BY T. D. Anderson et al. Published 09/07 Exothermic reaction additions to the flux of FCAW consumable electrodes demonstrated significant increases in arc process efficiency. BY S. H. Malene et al. Published 10/07 Solidification and macrosegregation were studied in welds made with filler metals dissimilar in composition from the workpiece. BY S. Kou and Y.K. Yang et al. Published 10/07 Temperature fields, cooling rates, tool torque, stir zone geometry, and magnesium concentration profiles were examined. BY R. Nandan et al. Published 10/07 The algorithms used to processs the image of a dot-matrix laser pattern reflected from the weld pool surface were examined. BY H. S. Song and Y. M. Zhang et al. Published 10/07 Two new mechanisms for fusion-boundary macrosegregation are proposed. BY Y. K. Yang and S. Kou Published 11/07 Extensive corrosion in leaking brazed joints was found to be the cause for failures in welding transformers. BY D. R. Sigler et al. Published 11/07 Stoichiometric mixtures were studied in self-shielded flux cored electrode formulations. BY S. H. Malene et al. Published 11/07 Causes and remedies for bead humping in gas metal arc welding are presented. BY T. C. Nguyen et al. Published 11/07 A hybrid brazing process allows the joining of very small and complex components. BY Fr.-W. Bach et al. Published 12/07 Mechanisms are proposed to explain why severe macrosegregation can occur when welding with filler metals dissimilar to the base metal. BY Y. K. Yang and S. Kou Published 12/07 A diagnostic tool was proven useful in transferring beam parameters between different electron beam welding machines. BY T. A. Palmer et al. Published 12/07 |