2001 (and backfills for previous years) / DB reference years
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Author Wei-T; Choi-S; Newman-WS
Source Proceedings-IEEE-International-Conference-on-Robotics-and-Automation. v 2 2001, (IEEE cat n 01CH37164) p 1352-1357; 2001IEEE International Conference on Robotics and Automation (ICRA). Seoul, South Korea
Abstract Computer-Aided Manufacturing of Laminated Engineering Materials (CAM-LEM), developed at Case Western Reserve University, is a layered-manufacturing approach utilizing automated stacking of parts laser-cut from sheet materials. This paper presents the design of a material-handling system and its integration with a modular laser-cutting system, completing the most recent version of CAM-LEM. Our material-handling system is required to: transfer individual sheets from at least three material stacks to the cutting table of the laser-cutting system; extract single-layer, laser-cut parts from the cutting table; and stack the parts onto a vertical-stack assembly, resulting in fabrication of a 3-D object. Design philosophy, details, and stacking performance measurements of the constructed system are presented. It is shown that the resulting system is capable of assembling objects within a 150mm cube with an assembly precision of approximately 0.050mm. Further, the assembly operations are relatively fast, so that part build rates are limited primarily by the laser cutter. 14 Refs. (Auth abstract) XX