Tool path planning process for component by layered manufacture
US6823230B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2000 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Jan 11, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P90/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Methods for improving the manufacture of objects made by layered manufacturing techniques through improved tool path generation. A vertex improvement aspect improves tool paths used to form vertices. Outer perimeter vertices can be improved by automatically creating an outer boundary reflecting the design intent to have material extending to the perimeter vertex. The outer boundary can be used as a contour tool path or as a limit to travel by raster tool paths. Boundary vertices within parts can be improved by extending more internal boundary vertices outward toward enclosing vertices, thereby eliminating some internal voids. Contour boundaries near outer perimeter corners can be better defined by extending outward a contour tool path toward the corners. Narrow regions between combinations of outer and/or inner perimeters can be filled through improved tool paths. Layer regions near inner voids can receive consistent filling through an improved raster tool path method. Sub-perimeter voids between raster bead pair turn-arounds and contour beads can be eliminated by automatically adjusting the raster tool path vertices toward the adjacent raster bead pair and/or contour bead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.