Retained Austenite as a Hydrogen Trapin Steel Welds Hydrogen trapping is investigated as a means of improving resistanceto hydrogen-assisted cracking in HSLA steels. BY Y. D. PARK, I. S. MAROEF, A. LANDAU, AND D. L. OLSON Posted 2/02 | Published2/02
Statistical Process Design for RoboticGMA Welding of Sheet Metal An optimization procedure minimizes cycle time while achieving small fractions ofnonconforming welds. BY T. T. ALLEN, R. W. RICHARDSON, D. P. TAGLIABUE, AND G. P. MAUL. Posted March, 2002 | Published in the Welding Journal May, 2002
Welding Process Effects in WeldabilityTesting of Steels Minimum preheats for avoiding weld deposit hydrogen-induced cracking candepend on the welding process used. BY G. ATKINS, D. THIESSEN, N. NISSLEY, AND Y. ADONYI. Posted March, 2002 | Published in the Welding Journal April, 2002
Process Sensitivity of GMAW:Aluminum vs. Steel Aluminum proves more sensitive to changes in current andwire-feed speed in comparison to steel. BY T. P. QUINN. Posted March, 2002 | Published in the Welding Journal April, 2002
A Study of Weld Pore Sensitivityof Self-Shielded, Flux Cored Electrodes An investigation revealed both nitrogen and oxygen content can affectthe formation of porosity in welds made using FCAW-S electrodes. BY Q. WEI, Q. HU, F. GUO, and D. J. XIONG Posted May, 2002 | Published in the Welding Journal June, 2002
Fume Model for Gas Metal Arc Welding Metal evaporation and condensation calculations predict fume formation rate forDC-positive operation in globular and spray modes. BY C. J. REDDING Posted June, 2002 | Published in the Welding Journal June, 2002
A Study of Weld Pore Sensitivityof Self-Shielded, Flux Cored Electrodes An investigation revealed both nitrogen and oxygen content can affectthe formation of porosity in welds made using FCAW-S electrodes. BY Q. WEI, Q. HU, F. GUO, and D. J. XIONG Posted June, 2002 | Published in the Welding Journal May, 2002
ANSI/AWS A5.1-91 E6013 RutileElectrodes: The Effect of Calcite All-weld-metal mechanical properties and microstructure, arc stability, andoperational characteristics were investigated. BY N. M. R. DE RISSONE, J. P. FARIAS, I. DE SOUZA BOTT, AND E. S. SURIAN Posted July, 2002 | Published in the Welding Journal July, 2002
Selecting Parameters for GMAW UsingDimensional Analysis Regression and dimensional analysis of experimental data establishedrelationships between welding parameters and process variables. BY P. E. MURRAY Posted July, 2002 | Published in the Welding Journal July, 2002
The Development of New Silver-FreeBrazing Alloys for Steel Tubular Assembly A new cost-efficient, silver-free alloy meets tensile and fatigue strengthrequirements for tubular joints on bicycle frames. BY D. M. JACOBSON, S. P. S. SANGHA, A. GALES, AND E. E. SCHMID Posted July, 2002 | Published in the Welding Journal August, 2002
The Effect of Ferro-Alloy Additionsand Depth on the Quality ofUnderwater Wet Welds In an effort to improve weld properties, 60 different coating formulations weredeveloped and welds were made at various depths to 300 ft. BY M. D. ROWE, S. LIU, AND T. J. REYNOLDS Posted July, 2002 | Published in the Welding Journal August, 2002
Investigation of Monitoring Systems forResistance Spot Welding A variety of sensor systems were studied to find which oneprovided the most information about nugget formation. BY C.-S. CHIEN AND E. KANNATEY-ASIBU, JR. Posted August, 2002 | Published in the Welding Journal September, 2002
Joining Using Semisolid Metals Semisolid metals can be used as filler metal to obtain jointsas strong as the base material. BY P. F. MENDEZ, C. S. RICE, AND S. B. BROWN Posted August, 2002 | Published in the Welding Journal September, 2002