Analysis of Modern Optical Inspection Systems for Parts Manufactured by Selective Laser Melting
Metal additive manufacturing (AM) allows obtaining functional parts with the possibility of optimizing them topologically without affecting system performance. This is of great interest for sectors such as aerospace, automotive, and medical–surgical. However, from a metrological point of view, the h...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-06-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/11/3202 |
| _version_ | 1797566097281515520 |
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| author | Sara Giganto Susana Martínez-Pellitero Eduardo Cuesta Víctor M. Meana Joaquín Barreiro |
| author_facet | Sara Giganto Susana Martínez-Pellitero Eduardo Cuesta Víctor M. Meana Joaquín Barreiro |
| author_sort | Sara Giganto |
| collection | DOAJ |
| description | Metal additive manufacturing (AM) allows obtaining functional parts with the possibility of optimizing them topologically without affecting system performance. This is of great interest for sectors such as aerospace, automotive, and medical–surgical. However, from a metrological point of view, the high requirements applied in these sectors constitute a challenge for inspecting these types of parts. Non-contact inspection has gained great relevance due to the rapid verification of AM parts. Optical measurement systems (OMSs) are being increasingly adopted for geometric dimensioning and tolerancing (GD&T) verification within the context of Industry 4.0. In this paper, the suitability (advantages and limitations) of five different OMSs (based on laser triangulation, conoscopic holography, and structured light techniques) for GD&T verification of parts manufactured by selective laser melting (SLM) is analyzed. For this purpose, a specific testing part was designed and SLM-manufactured in 17-4PH stainless steel. Once the part was measured by contact (obtaining the reference GD&T values), it was optically measured. The scanning results allow comparing the OMSs in terms of their inspection speed as well as dimensional and geometrical accuracy. As a result, two portable systems (handheld laser triangulation and structured blue-light scanners) were identified as the most accurate optical techniques for scanning SLM parts. |
| first_indexed | 2024-03-10T19:21:53Z |
| format | Article |
| id | doaj.art-8201c4c47bed49d5af018f8445fa0b1a |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T19:21:53Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-8201c4c47bed49d5af018f8445fa0b1a2023-11-20T02:54:11ZengMDPI AGSensors1424-82202020-06-012011320210.3390/s20113202Analysis of Modern Optical Inspection Systems for Parts Manufactured by Selective Laser MeltingSara Giganto0Susana Martínez-Pellitero1Eduardo Cuesta2Víctor M. Meana3Joaquín Barreiro4Department of Mechanical, Computer and Aerospace Engineering, Universidad de León, Campus de Vegazana, 24071 León, SpainDepartment of Mechanical, Computer and Aerospace Engineering, Universidad de León, Campus de Vegazana, 24071 León, SpainDepartment of Construction and Manufacturing Engineering, University of Oviedo, Campus de Gijón, 33204 Gijón, SpainDepartment of Construction and Manufacturing Engineering, University of Oviedo, Campus de Gijón, 33204 Gijón, SpainDepartment of Mechanical, Computer and Aerospace Engineering, Universidad de León, Campus de Vegazana, 24071 León, SpainMetal additive manufacturing (AM) allows obtaining functional parts with the possibility of optimizing them topologically without affecting system performance. This is of great interest for sectors such as aerospace, automotive, and medical–surgical. However, from a metrological point of view, the high requirements applied in these sectors constitute a challenge for inspecting these types of parts. Non-contact inspection has gained great relevance due to the rapid verification of AM parts. Optical measurement systems (OMSs) are being increasingly adopted for geometric dimensioning and tolerancing (GD&T) verification within the context of Industry 4.0. In this paper, the suitability (advantages and limitations) of five different OMSs (based on laser triangulation, conoscopic holography, and structured light techniques) for GD&T verification of parts manufactured by selective laser melting (SLM) is analyzed. For this purpose, a specific testing part was designed and SLM-manufactured in 17-4PH stainless steel. Once the part was measured by contact (obtaining the reference GD&T values), it was optically measured. The scanning results allow comparing the OMSs in terms of their inspection speed as well as dimensional and geometrical accuracy. As a result, two portable systems (handheld laser triangulation and structured blue-light scanners) were identified as the most accurate optical techniques for scanning SLM parts.https://www.mdpi.com/1424-8220/20/11/3202optical measurement systems (OMSs)dimensional and geometrical accuracymetrological comparisonnon-contact inspection3D scanningadditive manufacturing (AM) |
| spellingShingle | Sara Giganto Susana Martínez-Pellitero Eduardo Cuesta Víctor M. Meana Joaquín Barreiro Analysis of Modern Optical Inspection Systems for Parts Manufactured by Selective Laser Melting Sensors optical measurement systems (OMSs) dimensional and geometrical accuracy metrological comparison non-contact inspection 3D scanning additive manufacturing (AM) |
| title | Analysis of Modern Optical Inspection Systems for Parts Manufactured by Selective Laser Melting |
| title_full | Analysis of Modern Optical Inspection Systems for Parts Manufactured by Selective Laser Melting |
| title_fullStr | Analysis of Modern Optical Inspection Systems for Parts Manufactured by Selective Laser Melting |
| title_full_unstemmed | Analysis of Modern Optical Inspection Systems for Parts Manufactured by Selective Laser Melting |
| title_short | Analysis of Modern Optical Inspection Systems for Parts Manufactured by Selective Laser Melting |
| title_sort | analysis of modern optical inspection systems for parts manufactured by selective laser melting |
| topic | optical measurement systems (OMSs) dimensional and geometrical accuracy metrological comparison non-contact inspection 3D scanning additive manufacturing (AM) |
| url | https://www.mdpi.com/1424-8220/20/11/3202 |
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