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Manual quality inspection tasks are often inefficient and prone to errors due to their repetitive nature and subjectivity, which can lead to attention lapses and operator fatigue. The inspection of reflective aluminum parts presents additional challenges, as uncontrolled reflections and glare can obscure defects and reduce the reliability of conventional vision-based methods. Addressing these challenges requires optimized illumination strategies and robust image processing techniques to enhance defect visibility. This work presents the development of an automated optical inspection system for reflective parts, focusing on components made of high-pressure diecast aluminum used in the automotive industry. The reflective nature of these parts introduces challenges for defect detection, requiring optimized illumination and imaging methods. The system applies deep learning algorithms and uses dome light to achieve uniform illumination, enabling the detection of small defects on reflective surfaces. A collaborative robotic manipulator equipped with a gripper handles the parts during inspection, ensuring precise positioning and repeatability, which improves both the efficiency and effectiveness of the inspection process. A flow execution-based software platform integrates all system components, enabling seamless operation. The system was evaluated with Schmidt Light Metal Group using three custom datasets to detect surface porosities and inner wall defects post-machining. For surface porosity detection, YOLOv8-Mosaic, trained with cropped images to reduce background noise, achieved a recall value of 84.71% and was selected for implementation. Additionally, an endoscopic camera was used in a preliminary study to detect defects within the inner walls of holes. The industrial trials produced promising results, demonstrating the feasibility of implementing a vision-based automated inspection system in various industries. The system improves inspection accuracy and efficiency while reducing material waste and operator fatigue.<\/jats:p>","DOI":"10.1007\/s00170-025-15309-0","type":"journal-article","created":{"date-parts":[[2025,3,7]],"date-time":"2025-03-07T06:18:28Z","timestamp":1741328308000},"page":"2665-2680","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Automated optical system for quality inspection on reflective parts"],"prefix":"10.1007","volume":"137","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7410-517X","authenticated-orcid":false,"given":"Rui","family":"Nascimento","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7254-0346","authenticated-orcid":false,"given":"Cl\u00e1udia D.","family":"Rocha","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9803-1670","authenticated-orcid":false,"given":"Dibet","family":"Garcia Gonzalez","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0009-0002-2783-8404","authenticated-orcid":false,"given":"Tiago","family":"Silva","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0009-0000-8816-5122","authenticated-orcid":false,"given":"Rui","family":"Moreira","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0593-2865","authenticated-orcid":false,"given":"Manuel F.","family":"Silva","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3747-6577","authenticated-orcid":false,"given":"V\u00edtor","family":"Filipe","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8680-4290","authenticated-orcid":false,"given":"Lu\u00eds F.","family":"Rocha","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2025,3,7]]},"reference":[{"key":"15309_CR1","unstructured":"Allied Vision. 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