Browsing by Subject "Laminated Object Manufacturing"
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Item Advanced Laminated Object Manufacturing (LOM) of SiSiC Ceramics(2004) Weisensel, L.; Travitzky, N.; Greil, P.Carbon sheets were used as a starting material for fabrication of SiSiC composites by advanced LOM. This approach consists of three steps: First a preform was fabricated form phenolic resin coated carbon paper with a LOM-device. Second the preform was turned into a carbon preform by pyrolysis in N2-atmosphere. Third pressureless reactive melt infiltration of silicon into the as fabricated carbon preform, which finally yielded a dense SiSiC composite. SEM analysis revealed a microstructure consisting of uniformly dispersed β-SiC grains in a matrix of silicon. The LOM fabricated material exhibited an average four point bending strength and Youngs modulus of 115 MPa and 165 GPa, respectively.Item Laminated Object Manufacturing (LOM): A Simpler Process(1991) Feygin, Michael; Hsieh, BrianWith Laminated Object Manufacturing (LQM) process, three dimensional objects are manufactured by sequentially laminating and cUtting two-dimensional cross-sections. The.rnediumused.inLOMprocess isaQhesive-coatedsheet• materials.. As seen in Figure 1, the sheetmateria.l carries the adhesive either on one sideQr both sides, or it cQntains the adhesive ill itself, like woven composite material impregnated with bonding agent. The adhesive,which can be pre-coatedonto>material or be deposited prior to bonding, enables layers of sheet material to be attached to each other so as to construct a three-dimensional object.Item Rapid Prototyping Using 3-D Welding(1992) Dickens, P.M; Pridham, M.S; Cobb, R.C.; Gibson, I.; Dixon, G.Rapid prototyping systems are based, almost exclusively on polymer, or paper materials. The dimensions of the parts produced are limited by the volume of the processing area within the machine, and parts tend to warp or distort due to shrinkage and lack of support. Also the mechanical properties of the part are restricted to those of the processable materials and thus, in many cases, required 'engineering properties' cannot be obtainedItem Solid Freeform Fabrication of Functional Ceramic Components Using a Laminated Object Manufacturing Technique(1994) Griffin, Curtis; Daufenbach, JoDee; McMillin, ScottLone Peak Engineering (LPE) has demonstrated the feasibility ofusing solid freeform fabrication to prepare advanced structural ceramics using a laminated object manufacturing (LOM) technique. High purity, high density alumina ceramic components were successfully made using the LOM process. The properties oft he laminated object manufactured (LOMed) components were very similar to the physical and mechanical properties of alumina ceramics that were prepared by a conventional pressing process. The LOMed ceramics were also very similar in properties to commercially available alumina ceramics.