Fig. 9 — Photo (A) and macrograph (B) from a titanium T-joint welded with the CMT process. A B production rates characteristic of GMAW. Droplet transfer is achieved through the combination of surface tension and mechanical retraction of the wire, which distinguishes it from conventional and advanced short-circuit GMAW processes. Additionally, RWF-GMAW has been selected for numerous applications due to one or more of the following process attributes: 1) low heat input, 2) low and controlled base metal dilution, 3) precise bead placement, and/or 4) minimal spatter levels. 1. Welding Handbook, Eighth Edition, Vol. 2, welding processes. 1995. Miami, Fla.: American Welding Society. 2. Stave, E. K. The surface-tensiontransfer power source: A new, lowspatter arc welding machine. www.lincolnelectric. com. 3. Miller’s new, software-driven RMD process overcomes short circuit MIG limitations. Press release, March 5, 2004. www.millerwelds.com. 4. Furukawa, K. 2006. New CMT arc welding process – welding of steel to aluminum dissimilar metals and welding of super-thin aluminum sheets. Welding International. 5. Hasselberg, T. P. 2009. A feasibility study of ‘Cold Metal Transfer’ – gas metal arc welding (CMT-GMAW) nickel base superalloy Inconel 718. Thesis submitted to Rensselaer Polytechnic Institute. 6. SKS Welding Systems website, www.sks-systems.com. 7. XMT 350 matched with CSC controller from Jetline eliminates spatter, improves quality for wheel manufacturer. www.millerwelds.com. 8. Glackman, S. A., Norrish, J., and Harwig, D. D. 2004. Novel arc welding developments for pipeline root welding. Pipeline Technology Conference. 9. Panasonic. 2010. Is spatterless welding possible with the GMAW process? CWA Conference 2010. 10. Cold Metal Transfer/the technology. 2011. Technical Bulletin, M,06,0001, EN v01 2011 aw11, www.fronius.com. WJ 74 WELDING JOURNAL / APRIL 2015 NICK KAPUSTKA (nkapustka@ewi.org) is an applications engineer at EWI, Columbus, Ohio. References Change of Address? Moving? Make sure delivery of your Welding Journal is not interrupted. Contact Maria Trujillo in the Membership Department with your new address information — (800) 443-9353, ext. 204; mtrujillo@aws.org. For info, go to www.aws.org/adindex
Welding Journal | April 2015
To see the actual publication please follow the link above