Accession Number : ADA477194


Title :   Laser-GMA Hybrid Pipe Welding System


Descriptive Note : Final technical rept. Dec 2004-Nov 2007


Corporate Author : PENNSYLVANIA STATE UNIV UNIVERSITY PARK APPLIED RESEARCH LAB


Personal Author(s) : Reutzel, Edward W ; Kern, Ludwig ; Sullivan, Michael J ; Tressler, Jay F ; Avalos, Juan


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a477194.pdf


Report Date : Nov 2007


Pagination or Media Count : 246


Abstract : The combination of laser welding with conventional gas metal arc welding technology offers substantial increases in production rate of joining pipe through single-pass joining compared to multi-pass techniques that are commonly used. The hybrid process has been examined and developed for this application, and the process has been qualified through the American Bureau of Shipping for a wide range of pipe schedules. A system to realize this application has been specified, designed, built, and implemented in General Dynamics NASSCO Shipyard, and been subjected to a seven month evaluation on the production floor. Lessons learned have been documented to benefit future efforts. Fifteen actual production pipe spools were manufactured using the system.


Descriptors :   *GAS METAL ARC WELDING , *LASER WELDING , LESSONS LEARNED , HYBRID SYSTEMS , PRODUCTION RATE


Subject Categories : Fabrication Metallurgy


Distribution Statement : APPROVED FOR PUBLIC RELEASE