1999 / DB reference year
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Author Kovacevic, Radovan. Beardsley, Heather E. Fan, Honggang. Institution Southern Methodist Univ, Dallas, TX, USA
Source Manufacturing and Services American Society of Mechanical Engineers, Petroleum Division (Publication) PD 1999. ASME, Fairfield, NJ, USA.. 15p ETCE99-6621. Proceedings of the 1999 ASME Energy
*Source*s Technology Conference. Houston, TX, USA. 19990201-19990203.
Abstract Solid Freeform Fabrication (SFF) is one of the fastest growing automated manufacturing technologies that has significantly impacted the length of time between initial concept and actual part fabrication. However, to fully realize the potential cost and time savings associated with SFF, the capacity to go from CAD models directly to metal components and tooling is crucial. This paper will lay the foundation for developing a new solid freeform fabrication technique based on controlling the heat and mass transfer processes in gas metal arc welding. In 3D welding a droplet of the melted electrode wire is detached to form a metallic deposit. By properly depositing droplets, the metallic parts are made layer by layer. In order to accurately control the resultant shape of the part, as well as its mechanical and metallurgical properties, the drop size and detachment rate must be precisely controlled. (Auth abstract) XX