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WJ Supplements - 2002
RESEARCH PAPERS
Research Papers posted are available in PDF format ONLY.
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A temper diagram is developed to address the issue of holdtime sensitivity for resistance spot welding of high-strength steel. BY W. L. Chuko and J. E. Gould Published January 2002 A feedback signal from a magnetic field introduced into the arc may lead to improved sensing of arc variables. BY Y. H. Kang and S. J. Na Published January 2002 A method to determine inaccessible stresses in a weldment uses strain gauges attached to the outer surfaces of a lap joint. BY S. Zhang Published January 2002 A range of process, manufacturing, and materials variables are studied to evaluate their effect on the robustness of arc stud welding. BY S. R. Ramasamy, et al. Published February 2002 A method of managing hydrogen in high-strength steel is investigated. BY Y. D. Park, et al.. Published February 2002 Predicted heat-affected grain growth displayed reasonable agreement with experimental results of metallographic examination. BY M.-Y. ki and E. Kannatoy-Asibu, Jr. Published March 2002 The importance of selecting appropriate process variables to achieve predictable and reproducible welds is demonstrated. BY V. Gunaraj and N. Murugan Published March 2002 An investigation into the relative sensitivity to process variables between aluminum and steel reveals some interesting results. BY T. P. Ouinn Published April 2002 As part of a nationwide program to develop new highperformance steel, an investigation of hydrogen-induced cracking susceptibility was made using different welding processes. BY G. Atkins, et. al. Published April 2002 A method is proposed to reduce welding time by increasing travel speed while retaining weld quality. BY T. T. Allen, et al. Published May 2002 This study establishes sulfur to be a greater contributor to HAZ hot cracking than phosphorus. BY L. Li and R. W. Messier, Jr. Published May 2002 The temperature cycling history of a surface mount solder joint was taken into account in the analysis of dynamic stress distribution. BY Y. Y. Qian, X. Ma, and F. Yoshida Published June 2002 Both nitrogen and oxygen were found to greatly influence porosity formation in self-shielded flux cored welding. BY O. Wei, O. Hu, F. Guo, and D. J. Xiong Published June 2002 A model intermediate between theoretical and empirical was developed to predict fume generation from the globular and spray transfer modes. BY C. J. Redding Published June 2002 A weld monitoring system was developed to analyze weld strength and nugget diameter. BY Y. Cho and S. Rhee Published June 2002 A program is undertaken to discover fundamental knowledge about rutile covered electrodes. BY N. M. R. DE Rissono et al. Published July 2002 A relationship between process variables and the desired operating conditions was established by regression and dimensional analysis. BY P. E. Murray Published July 2002 Three sets of experimental electrodes shed light on attaining the best performance for joining high-strength steel. BY W. Wang and S. Liu Published July 2002 A cost-efficient, silver-free alloy meets the tensile and fatigue requirements for joining high-strength bicycle frames. BY D. M. Jacobson at el. Published August 2002 Testing of various experimental electrodes for underwater welding sheds light on improving quality at increased depths. BY M. D. Rowe et el. Published August 2002 Process parameters and joining techniques are investigated for joining a uranium alloy to high-strength aluminum. BY J. W. Elmer at el. Published August 2002 The causes of heat-affected zone softening in fine-grained, ferritic-pearlitic steel are examined. BY K.-S. Bang and W.-Y. Kim. Published August 2002 A unique use of a semisolid slurry as a filler metal to join aluminum offers an equiaxed microstructure, high deposition, and no fumes or spatter. BY P. F. Mendez et al. Published September 2002 Cracking susceptibility of similar and dissimilar aluminum alloys joined by gas tungsten arc welding was determined. BY M. M. Mossman et al. Published September 2002 Sensor systems that provided information on nugget formation were studied for accuracy. BY C.-S. Chien et al. Published September 2002 The effects of aging were studied in brazed joints made of alloys used in advanced heat engines. BY R T. Vianco et al. Published October 2002 Three liquation mechanisms were found to cover nearly all wrought aluminum alloys. BY C. Huang and S. Kou Published October 2002 Weld quality significantly improved when a 6-kWr CO 2 laser beam was split into two equal-power beams located in tandem during welding. BY J. Xie Published October 2002 Postweld heat-treatment cycles were simulated to study the effect on liquation cracking susceptibility in the heat-affected zone. BY M. Oian and J. C. Lippold Published November 2002 Microstructural variations and their relationship to heat input and welding parameters were studied as they related to mechanical properties. BY B. Basu and R. Raman Published November 2002 Narrow-groove welding of thick sections was accomplished with two opposing torches. BY Y. M. Zhang et al. Published November 2002 The mechanical performance of a brazing alloy shows promise for applications where long-term aging and exposure to elevated temperatures are factors BY P. T. Vianco et al. Published November 2002 Individual microstructural regions in the heat-affected zone were more accurately identified with a new test technique. BY V. Karthik at el. Published December 2002 Flow rate effect on HAZ hardness, risk of melt through, residual stress and plastic strain distribution were all evaluated in developing a model to predict in-service repair of pipelines. BY I.-W. Bang et al. Published December 2002 A mathematical model helps to define the heat flow patterns with dual-beam laser welding. BY I.-W. Bang et al. Published December 2002 A variety of chloride fluxes were tested to ascertain their influence on arc voltage, arc temperature, and joint penetration. BY M. Marya et el. Published December 2002 |