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Laminated Object Manufacturing (LOM)
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Laminated Object Manufacturing (LOM)

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  • 1. http://www.custompartnet.com/wu/laminated-object-manufacturingThe first commercial Laminated Object Manufacturing (LOM) system was shipped in 1991.LOM was developed by Helisys of Torrance, CA. The main components of the system are a feedmechanism that advances a sheet over a build platform, a heated roller to apply pressure to bondthe sheet to the layer below, and a laser to cut the outline of the part in each sheet layer. Parts areproduced by stacking, bonding, and cutting layers of adhesive-coated sheet material on top of theprevious one. A laser cuts the outline of the part into each layer. After each cut is completed, theplatform lowers by a depth equal to the sheet thickness (typically 0.002-0.020 in), and anothersheet is advanced on top of the previously deposited layers. The platform then rises slightly andthe heated roller applies pressure to bond the new layer. The laser cuts the outline and theprocess is repeated until the part is completed. After a layer is cut, the extra material remains inplace to support the part during build.