1998 / DB reference year
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Author Klosterman, Don. Chartoff, Richard. Graves, George. Osborne, Nora. Lightman, Allan. Hah, Gyoowan. Bezeredi, Akos. Rodrigues, Stan. Institution Univ of Dayton, Dayton, OH, USA
Source International SAMPE Symposium and Exhibition (Proceedings). v 43 n 1 1998. SAMPE, Covina, CA, USA. p 693-705. Proceedings of the 1998 43rd International SAMPE Symposium and Exhibition. Part 1 (of 2). Anaheim, CA, USA. 19980531-19980604.
Abstract The capability of rapid prototyping has recently been extended to the direct fabrication of structural ceramics and ceramic matrix composites (CMCs). Summarized herein is the status of an ongoing program involving a novel approach for fabricating structural composites. The Laminated Object Manufacturing (LOM) process was custom adapted for fabricating both flat layer and curved layer composite laminates. A new LOM machine was developed which uses fiber prepregs and ceramic tapes as a feedstock. The machine stacks and bonds layers of these materials and cuts them with a laser. The output is a three dimensional `green' form that is capable of being further processed to a seamless, fully dense ceramic structure using traditional techniques. The LOM process is also applicable to polymer matrix composites (PMCs). LOM is fully automatic and requires only a computer graphic file of the part to be created. Intricate tools and molds are not required anywhere in the overall process cycle. This report review s how the complete process was demonstrated for monolithic SiC parts and continuous fiber SiC/SiC composites. The focus of the paper is a detailed description of the various materials and processing issues involved. (Auth abstract) [References: 7] XX