A visual inspection system for KTL coatings

Bračun, Drago (avtor), Lekše, Igor (avtor)

Many metal components in automotive industry are surface-protected using the electrophoretic cathode metal coating (KTL). As surface defects can occur in this process, the components need to be 100% inspected, especially if the manufacturers are committed to delivering zero-defect products. Due to complicated 3D curved shapes and black shiny colour of the coating, inspection is typically carried out manually. To avoid labour-intensive manual inspection in serial production, an automated visual inspection system is developed. The paper presents the implementation of a control device for mass inspection of the products, typical KLT coating defects, and the visual inspection method for the detection of coating defects. A difference image acquisition method is implemented in order to reveal the defects on the black shiny colored parts. An image processing algorithm for the recognition of light patterns and a clustering approach for the recognition of defects are presented.

• Jezik: Angleški jezik
• Ključne besede: KTL, surface defect, inspection, imaging system, pattern recognition, cluster
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.08 - Objavljeni znanstveni prispevek na konferenci
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2019
• Št. strani: f. 771-774
• Številčenje: Vol. 81
• PID: 20.500.12556/RUL-108466
• UDK: 658.56:620.191(045)
• ISSN pri članku: 2212-8271
• DOI: 10.1016/j.procir.2019.03.192
• COBISS.SI-ID: 16688411
• Datum objave v RUL: 03.07.2019

Gradivo je del zbornika

• Naslov: 52nd CIRP Conference on Manufacturing Systems (CMS), Ljubljana, Slovenia, June 12-14, 2019
• COBISS.SI-ID: 16674843

Gradivo je del revije

• Naslov: Procedia CIRP
• Založnik: Elsevier
• ISSN: 2212-8271
• COBISS.SI-ID: 12981019

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: površinske napake, nadzor kakovosti, slikovni sistemi, razpoznavanje vzorcev

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0270
• Naslov: Proizvodni sistemi, laserske tehnologije in spajanje materialov