VISION SYSTEM AND METHOD FOR DIRECT-METAL-DEPOSITION (DMD) TOOL-PATH GENERATION
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United States of America Patent
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Issued Date -
Oct 23, 2008
app pub date -
Apr 17, 2008
filing date -
Apr 17, 2007
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Abstract
New tool paths are automatically created for rapid prototyping and additive manufacturing processes, facilitating the fabrication of new or repaired parts with superior geometries and/or compositional characteristics. The profile of a source part is imaged from camera picture and point wise offset adjustments. Part profile and process points are automatically generated without teaching by an operator. In the preferred embodiment, point-by-point process variable settings (i.e., laser power, speed and powder flow) are coupled to a closed-loop, direct-metal deposition (DMD) process to fabricate or repair production components using a tool path derived from the profile of the source part. The preferred method includes the steps of detecting the edge of the source part; generating a point-to-point database of the source part based upon the detected edge; and assigning one or more process parameters associated with the additive manufacturing process used to fabricate or repair the production part.
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