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3D milling edge inspection of CFRP parts by optical methods

: Frommknecht, Andreas; Effenberger, Ira

Fulltext urn:nbn:de:0011-n-5239010 (500 KByte PDF)
MD5 Fingerprint: 19af42bf1a978b72e51e98ff3bdf1615
Created on: 11.12.2018

Hochschule für Technik und Wirtschaft des Saarlandes, Saarbrücken:
International Symposium on Structural Health Monitoring and Nondestructive Testing, SHM-NDT 2018 : 4-5 October 2018, Saarbrücken, Germany
Saarbrücken, 2018
8 pp.
International Symposium on Structural Health Monitoring and Nondestructive Testing (SHM-NDT) <2018, Saarbrücken>
Conference Paper, Electronic Publication
Fraunhofer IPA ()
milling; Inspektion; Messen; Carbon-fiber-Reinforced Plastic (CFRP); zerstörungsfreie Prüfung; Optisches Messverfahren

The machining including milling of Carbon Fiber Reinforced Plastic (CFRP) is a challenging task, which leads often to defects like delaminations, disruptions and fiber protrusions. Countermeasures like changing tool or machining parameters have to be taken as soon as possible. So an inline inspection method is necessary. The work described in this paper is based on either a laser line scanner or a fringe projection system. Both deliver 3D point clouds, which are analyzed by a new developed model-free algorithm, which focuses on geometric deviations and fiber protrusions. The implemented algorithm shows promising results in the first evaluations. Further tests have to be done especially for complex geometries and it has to be examined if the used model-free approach is sufficient.