TY - JOUR

T1 - Individualized and controlled laser beam pretreatment process for adhesive bonding of fiber-reinforced plastics—Part I

T2 - Optical detection of impurities on the component surface

AU - Weiland, J.

AU - Kunze, B.

AU - Dittmar, H.

AU - Marx, B.

AU - Schiebahn, A.

AU - Jäschke, P.

AU - Overmeyer, L.

AU - Reisgen, U.

PY - 2020/10/1

Y1 - 2020/10/1

N2 - This paper deals with the detection and localization of impurities such as release agent residues and fingerprints on fiber-reinforced plastic surfaces in an inline process step. This information can be used to carry out a locally individual and controlled surface pretreatment using laser radiation in order to improve the adhesion conditions. In this paper, surfaces from polyamide 6 reinforced with glass fiber are considered. To detect the impurities, inline images of the joining surfaces are taken using a laser line triangulation system. These image data are then examined with a specially developed algorithm of digital image processing. The real-time algorithm is based on the method of material-specific threshold values. In addition to real impurities, the algorithm was validated with artificial impurities. The central result of this work is the detection and local impurities of release agent residues and fingerprints down to a detail size of 0.3 mm.

AB - This paper deals with the detection and localization of impurities such as release agent residues and fingerprints on fiber-reinforced plastic surfaces in an inline process step. This information can be used to carry out a locally individual and controlled surface pretreatment using laser radiation in order to improve the adhesion conditions. In this paper, surfaces from polyamide 6 reinforced with glass fiber are considered. To detect the impurities, inline images of the joining surfaces are taken using a laser line triangulation system. These image data are then examined with a specially developed algorithm of digital image processing. The real-time algorithm is based on the method of material-specific threshold values. In addition to real impurities, the algorithm was validated with artificial impurities. The central result of this work is the detection and local impurities of release agent residues and fingerprints down to a detail size of 0.3 mm.

KW - Adhesion

KW - finger print

KW - image processing

KW - image segmentation

KW - impurities detection

KW - laser beam pretreatment

KW - optical measurement

UR - http://www.scopus.com/inward/record.url?scp=85085470927&partnerID=8YFLogxK

U2 - 10.1177/0954408920927548

DO - 10.1177/0954408920927548

M3 - Article

AN - SCOPUS:85085470927

VL - 234

SP - 426

EP - 435

JO - Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering

JF - Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering

SN - 0954-4089

IS - 5

ER -