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Method and system for cutting a preform intended for the production of a turbomachine part

  • US 10,456,877 B2
  • Filed: 06/26/2018
  • Issued: 10/29/2019
  • Est. Priority Date: 07/16/2012
  • Status: Active Grant
First Claim
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1. A cutting system of a preform comprising visually identifiable weaving threads, the preform being usable to produce a turbomachine part, the system comprising:

  • a cutting machine of the preform;

    a memory, in which a reference preform image having a reference weaving thread layout and a pre-calculated cutting contour of the preform are recorded;

    an imaging device of the preform; and

    a processing unit, configured to control the cutting machine and the imaging device for execution of the following steps;

    taking an image of the preform;

    detecting intersections of the visually identifiable weaving threads in the taken image;

    superimposing the taken image and the reference preform image and calculating a deviation between the detected intersections and intersections of the reference weaving threads present in the reference preform image;

    correcting the cutting contour as a function of the deviation, and saving the corrected cutting contour in the memory; and

    cutting the preform according to the corrected cutting contour.

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