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RESEARCH PAPERS
Research Papers posted after 12/98 are available in PDF format ONLY. You will need Adobe Acrobat Reader to view the PDF version of the document.

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    • Cohesive-Zone Modeling of the Deformation and Fracture of Weld-Bonded Joints
    Two cohesive-fracture parameters were developed, then combined to predict the behavior of weld-bonded geometries M. N. CAVALLI, M. D. THOULESS, AND Q. D. YANG
    Posted 3/04  |  Published 04/04
  • Mechanical Modeling of Ultrasonic Welding
    Analytical and numerical modeling of spot ultrasonic welding on thin metal foils is motivated by a new ultrasonic rapid prototyping technology BY C. DOUMANIDIS AND Y. GAO
    Posted 3/04  |  Published 04/04
  • Liquation Cracking in Full-Penetration Al-Mg-Si Welds
    A higher fraction solid in the weld metal than in the partially melted zone during terminal solidification is a necessary condition for cracking to occur BY C. HUANG AND S. KOU
    Posted 3/04  |  Published 04/04
  • Expulsion Prediction in Resistance Spot Welding
    A model is proposed for predicting expulsion in resistance spot welding BY J. SENKARA, H. ZHANG, AND S. J. HU
    Posted 3/04  |  Published 04/04
  • Development and Evaluation of an In-Situ Beam Measurement for Spot Welding Lasers
    Comparative measurements demonstrate that multiple shots on Kapton™ film yield a focused laser beam diameter that is 99% of the actual beam diameter BY P. W. FUERSCHBACH, J. T. NORRIS, R. C. DYKHUIZEN, AND A. R. MAHONEY
    Posted 4/04  |  Published 05/04
  • The Influence of Various Hybrid Welding Parameters on Bead Geometry
    Arc power and transfer mode greatly affect bead width, penetration, and reinforcement BY M. EL RAYES, C. WALZ, AND G. SEPOLD
    Posted 4/04  |  Published 05/04
  • Microstructure-Property Relationships in HAZ of New 13% Cr Martensitic Stainless Steels
    An assessment of mechanical properties showed a relatively low HAZ hardness and high notch toughness could be obtained BY O. M. AKSELSEN, G. RØRVIK, P. E. KVAALE, AND C. VAN DER EIJK
    Posted 4/04  |  Published 05/04
  • Three-Dimensional Simulation of Transient GMA Weld Pool with Free Surface
    A 3-D transient thermo-fluid model with free surface can analyze droplet flow effects on weld pool formation and weld bead profile such as finger-like penetration and weld toe radius BY Z. CAO, Z. YANG, AND X. L. CHEN
    Posted 5/04  |  Published 06/04
  • Plasticity-Based Distortion Analysis for Fillet Welded Thin-Plate T-Joints
    A new relationship between cumulative plastic strains and angular distortion was found BY G. H. JUNG AND C. L. TSAI
    Posted 5/04  |  Published 06/04
  • Resistance Spot Welding of Aluminum Alloy to Steel with Transition Material — From Process to Performance — Part I: Experimental Study
    Weld strength, failure mode, and fatigue life were compared with self-piercing rivets of the same dissimilar metals combination BY X. SUN, E. V. STEPHENS, M. A. KHALEEL, H. SHAO, AND M. KIMCHI
    Posted 5/04  |  Published 06/04
  • An Investigation on the Effects of Gases in GTA Welding of a Wrought AZ80 Magnesium Alloy
    Argon, helium, and nitrogen, some enriched with hydrogen, were investigated for their effects on melting and penetration BY M. MARYA, G. R. EDWARDS, AND S. LIU
    Posted 6/04  |  Published 07/04
  • Resistance Spot Welding of Aluminum Alloy to Steel with Transition Material — Part II: Finite Element Analyses of Nugget Growth
    An aluminum-clad steel transition layer can be used in forming a structural weld between aluminum and steel parts BY X. SUN AND M. A. KHALEEL
    Posted 6/04  |  Published 07/04
  • Fundamental Studies on the Effect of Distortion Control Plans on Angular Distortion in Fillet Welded T-Joints
    The effect of distortion control plans on the relationship between cumulative plastic strains and angular distortion in fillet welded T-joints was investigated BY G. H. JUNG AND C. L. TSAI
    Posted 6/04  |  Published 07/04
  • Metallurgical Characterization of a Friction Welded Aluminum Alloy Subjected to an External Electrostatic Field
    Application of an external electric field was found to increase weld joint hardness BY L. FU AND S. G. DU
    Posted 7/04  |  Published 08/04
  • 'Kissing Bond' Phenomena in Solid-State Welds of Aluminum Alloys
    Discontinuities in extrusion welds are a model for friction stir welding defects BY A. OOSTERKAMP, L. DJAPIC OOSTERKAMP, AND A. NORDEIDE
    Posted 7/04  |  Published 08/04
  • Reliability of Weld Microstructure and Property Calculations
    The 2004 AWS Adams Lecture explored whether experimentation is required when developing consumables for new steels, or if modeling is sufficient H. K. D. H. BHADESHIA
    Posted 8/04  |  Published 9/04
  • Direct Observations of Austenite, Bainite, and Martensite Formation during Arc Welding of 1045 Steel Using Time-Resolved X-ray Diffraction
    A process for examining phase transformations in the heat-affected zone in real-time was investigated J. W. ELMER et al.
    Posted 8/04  |  Published 9/04
  • Yttrium Hydrogen Trapping to Manage Hydrogen in HSLA Steel Welds
    Rare earth elements were examined as an effective means of trapping hydrogen in weld metal C. A. LENSING et al.
    Posted 8/04  |  Published 9/04
  • Optimization of Shielded Metal Arc Weld Metal Composition for Charpy Toughness
    Artificial neural network models were used to predict optimum weld metal composition for maximum toughness M. MURUGANANTH et al.
    Posted 9/04  |  Published 10/04
  • Friction Stir Welding of Aluminum Alloy to Steel
    The friction stir welding process was successfully used to weld aluminum to steel K. KIMAPONG AND T. WATANABE
    Posted 9/04  |  Published 10/04
  • Flame-Focusing Modification of a Wire-Core Thermal Lance
    A nonreactive, nonmelting layer stabilized lance combustion and improved cutting steels. H. WANG et al.
    Posted 9/04  |  Published 10/04
  • Physical and Welding Metallurgy of Gd-Enriched Austenitic Alloys for Spent Nuclear Fuel Applications — Part I: Stainless Steel Alloys
    The solidification temperature range of these alloys was found to be very large, leading to poor hot ductility and weldability J. N. DUPONT et al.
    Posted 10/04  |  Published 11/04
  • The Effect of Welding Procedure on ANSI/AWS A5.29-98 E81T1-Ni1 Flux Cored Arc Weld Metal Deposits
    Arc energy, number of passes per layer, welding position, and shielding gas type were considered H. G. SVOBODA et al.
    Posted 10/04  |  Published 11/04
  • Effects of Fusion Zone Size on Failure Modes and Static Strength of Aluminum Resistance Spot Welds
    A larger weld size creates a higher level of peak load and energy absorption X. SUN et al.
    Posted 10/04  |  Published 11/04
  • Physical and Welding Metallurgy of Gd-enriched Austenitic Alloys for Spent Nuclear Fuel Applications — Part II: Nickel-based Alloys
    Tests proved Gd-enriched Ni-based alloys are excellent candidates for use in storing spent nuclear fuels J. N. DUPONT, C. V. ROBINO, J. R. MICHAEL, R. E. MIZIA, AND D. B. WILLIAMS
    Posted 11/04  |  Published 12/04
  • Numerical Simulation of Transient 3-D Surface Deformation of a Completely Penetrated GTA Weld
    An analytical model that explores the dynamic behavior of a weld pool will help in the development of a sensor that detects complete joint penetration in gas tungsten arc welding BY C. S. WU, P. C. ZHAO, AND Y. M. ZHANG
    Posted 11/04  |  Published 12/04
  • Signature Analysis for Quality Monitoring in Short-Circuit GMAW
    An effective method has been developed to identify the process stability and weld quality of short-circuit GMAW BY Y. X. CHU, S. J. HU, W. K. HOU, P. C. WANG AND S. P. MARIN
    Posted 11/04  |  Published 12/04
  • Friction Stir Welding of 2219 Aluminum: Behavior of q (Al2Cu) particles
    An experimental study was conducted into whether a workpiece reaches the lower bounds of melting temperature to trigger liquation when friction stir welded BY G.CAO AND S. KOU
    Posted 12/04  |  Published 1/05
  • Intelligent Control of Pulsed GTAW with Filler Metal
    A visual imaging system provides feedback on weld shape for controlling welding on plates with varied root openings BY G. J. ZHANG ET AL.
    Posted 12/04  |  Published 1/05
  • Characterization of Dynamic Mechanical Properties of Resistance Welding Machines
    A test was devised to determine basic, independent machine parameters to help in the development of a model for predicting the mechanical dynamics of a resistance welding machine BY P. WU ET AL.
    Posted 12/04  |  Published 1/05
  • The Application of Artificial Neural Networks to Weld-Induced Deformation in Ship Plate
    An increase in carbon content proved beneficial in reducing thin plate distortion caused by welding BY M. P. LIGHTFOOT ET AL.
    Posted 1/05  |  Published 2/05
  • Development of a Lightweight Fume Hood for Handheld Welding Guns
    A small welding hood that completely covered the weld area helped minimize fume emissions BY N. TURKEM ET AL.
    Posted 1/05  |  Published 2/05
  • Development of Flux and Filler Metal for Brazing Magnesium Alloy AZ31B
    A small amount of zinc in the filler metal composition was found to be a key ingredient for high joint strength BY T. WATANABE ET AL.
    Posted 2/05  |  Published 3/05
  • Processing of Alumina-Niobium Interfaces via Liquid-Film-Assisted Joining
    The strength of a ceramic-metal interface was improved with the addition of a copper film interlayer BY J. T. MCKEOWN ET AL.
    Posted 2/05  |  Published 3/05
  • Influence of Molybdenum on Ferritic High-Strength SMAW All-Weld-Metal Properties
    As molybdenum increased, hardness, yield, and tensile strengths increased for high-strength SMAW electrode weld metal BY E. SURIAN ET AL.
    Posted 3/05  |  Published 4/05
  • Liquation Cracking in Full Penetration Al-Si Welds
    An investigation showed high-Si, Al-Si casting alloys could backfill and heal liquation cracks in welds no matter which filler metal was used BYG. CAO AND S. KOU
    Posted 3/05  |  Published 4/05

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