STUDY ON ADAPTIVE SLICING ALGORITHM OFFUNCTIONALLY GRADED MATERIAL COMPONENTS FORRAPID PROTOTYPING

摘要

Rapid Prototyping (RP) technology involves layeredrnmanufacturing and deposition of material on a point-wisernfashion or a line-wise fashion to manufacture components. Itrnis specially suited to manufacture the heterogeneous compo-rnnents in which the material is variational in one layer orrnbetween layers. Slicing is a very important procedure in RPrntechnology, especially adaptive slicing is the effective meansrnwhich guarantees the quality of components molding andrnimproves the efficiency of RP manufacturing. The paperrnpresents an adaptive slicing algorithm of functionally gradedrnmaterial (FGM) components for RP. The algorithm is studiedrnby considering both geometry information and materialrndistribution information. The layer thickness is computedrnaccording to the area variation rate between two adjacentrnslices, the gradient of material distribution and materialrnresolution. After slicing, the material information in each slicernis stored discretely by material composition function andrnmaterial resolution. Finally, an example is presented.