1998 / Solid Freeform Fabrication Proceedings
PREV and NEXT link to numerically adjacent references for this YEAR.
CONTENTS links to the title list for this YEAR's references.
Author Brian B. Mathewson (a), Ravi Hebbar (b), Sangeun Choi (b), Wyatt S. Newman (b), James D. Cawley (b), Arthur H. Heuer (b), CAM-LEM, Inc., Case Western Reserve University
Source Solid Freeform Fabrication Proceedings, 1998, pp 335-342
Abstract This paper describes machine design and control aspects of automating a viable CAM-LEM layered manufacturing process. The cut-then-stack sheet-based approach permits using sheet materials of different thicknesses, enabling optimization of build speed. Further, this cut-then-stack approach offers the possibility of assembling parts with multiple materials interleaved both layer-to-layer as well as within each layer. The key to realizing these prospective advantages is precise and reliable extraction and assembly of laser-cut regions from sheet feedstock. This paper presents our design approach and examples created on an automated CAM-LEM machine. It will be shown that the use of fugitive materials, automatically assembled interleaved with engineering materials, is feasible, allowing fabrication of laminated components with internal cusps and voids and improving the dimensional stability of components during post-processing. Results of this work are presented and applications of the technology are reviewed. Extensions to tangent-cut thick-sheet interleaved assemblies are described. (Auth abstract) [References: 14]
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