2003 / Solid Freeform Fabrication Proceedings
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Author D. D. Gill, M. L. Griffith, D. E. Reckaway, C. F. Briner, D. G. Abrams Manufacturing Science & Technology Center, Sandia National Laboratories Albuquerque, NM 87185
Source Solid Freeform Fabrication Proceedings, 2003, pp 324-327.
Abstract The Laser Engineered Net Shaping (LENS TM) system at Sandia National Laboratories, a laser-based direct metal deposition process, was recently used for the fabrication of a complex prototype. The LENS process involved the challenges of adjacent areas of thick and thin cross section, overhanging unsupported features, high aspect ratios, and a hemispherical substrate. These challenges were overcome through the use of closed-loop weld pool control, height monitoring, a strong understanding of build parameters, and unique process planning strategies. The near-net shape LENS part was completed with annealing and conventional machining to produce the complex components in a reduced timeframe. (Auth abstract) [References: 2] XX
Solid Freeform Fabrication Proceedings can be obtained from: The Solid Freeform Fabrication Symposium
or contact:
The University of Texas at Austin
Laboratory for Freeform Fabrication / Texas Materials Institute
Mechanical Engineering Dept.
c/o The Solid Freeform Fabrication Symposium
MC C2200
Austin, TX 78712-1063 USA
512-471-3026; 512-471-7681 FX; Email: sffsymp@uts.cc.utexas.edu