Abstract: Using COMET L3D to get point cloud data of sheet metal parts,sheet metal pieces of physical model of the three-dimensional information into the computer can deal directly with high precision three-dimensional digital model,then using the point cloud data to reverse remodeling,sheet metal parts and in the process of reverse remodeling of surface reconstruction and accuracy control are analyzed in detail.Finally obtained the high precision sheet metal pieces of reconstruction model.Reverse engineering in the application of sheet metal parts design process to make up for the limitation of the traditional top-down design and the insufficiency,under the premise of guarantee accuracy rapid reconstruction of the implementation model,so as to shorten the development cycles of sheet metal parts design,reduce the design cost.

Key words: COMET L3D, sheet metal parts, point cloud, reverse remodeling