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Verification of tow cut for automatic fiber placement

  • US 8,377,239 B2
  • Filed: 07/07/2010
  • Issued: 02/19/2013
  • Est. Priority Date: 12/17/2007
  • Status: Active Grant
First Claim
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1. A method of monitoring operation of cutters used to automatically cut fiber tows to length, comprising:

  • recording an image of at least a portion of a row of tows placed by an automatic fiber placement machine;

    recording a point in time when each of the cutters is actuated to cut the tows to length during placement of the tows;

    using the recorded image to detect whether an inconsistency exists in the placement of a tow; and

    determining whether a cutter is responsible for the detected inconsistency by correlating the recorded point in time with the detected inconsistency.

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