Non-contact assessment of porosity in metal 3D printed parts by vibration spectra
Volumetric porosity as a common defect in metal 3D printing (3DP) that can significantly impede the mechanical properties of products. Traditional methods of porosity control (microscopy) and non-destructive testing (computed tomography) usually are not applicable at the production site. In this st...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | deu |
| Published: |
NDT.net
2023-08-01
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| Series: | Research and Review Journal of Nondestructive Testing |
| Online Access: | https://www.ndt.net/search/docs.php3?id=28102 |
| _version_ | 1797265936500129792 |
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| author | Alexey Tatarinov Alexey Nikolas Vladimir Nikulenkov Vyacheslavs Zemchenkovs Jekaterina Kuzmina Viktors Mironovs |
| author_facet | Alexey Tatarinov Alexey Nikolas Vladimir Nikulenkov Vyacheslavs Zemchenkovs Jekaterina Kuzmina Viktors Mironovs |
| author_sort | Alexey Tatarinov |
| collection | DOAJ |
| description |
Volumetric porosity as a common defect in metal 3D printing (3DP) that can significantly impede the mechanical properties of products. Traditional methods of porosity control (microscopy) and non-destructive testing (computed tomography) usually are not applicable at the production site. In this study, sensitivity of three examined testing modalities based on acoustic methods and vibration analysis to changes in the volumetric porosity of 3DP parts was examined. Test objects were cylindrical specimens made of AlMg powder by 3DP with a gradually dosed porosity from 0.5 to 4.0%. Ultrasonic testing by through transmission showed the best accuracy using ultrasound velocity and pulse intensity parameters. Shifts of resonant frequency and spectral density and appearance of side harmonics were the manifestations of increased porosity using vibration approaches. The method comprising a loudspeaker as a vibration exciter and an optoelectronic device for remote sensing of vibration is the most attractive from the point of view of application to objects of complex geometry.
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| first_indexed | 2024-04-25T00:52:43Z |
| format | Article |
| id | doaj.art-53f89da4eed34c27bc81dd81da8a6c02 |
| institution | Directory Open Access Journal |
| issn | 2941-4989 |
| language | deu |
| last_indexed | 2024-04-25T00:52:43Z |
| publishDate | 2023-08-01 |
| publisher | NDT.net |
| record_format | Article |
| series | Research and Review Journal of Nondestructive Testing |
| spelling | doaj.art-53f89da4eed34c27bc81dd81da8a6c022024-03-11T15:46:44ZdeuNDT.netResearch and Review Journal of Nondestructive Testing2941-49892023-08-011110.58286/28102Non-contact assessment of porosity in metal 3D printed parts by vibration spectraAlexey TatarinovAlexey NikolasVladimir NikulenkovVyacheslavs ZemchenkovsJekaterina KuzminaViktors Mironovs Volumetric porosity as a common defect in metal 3D printing (3DP) that can significantly impede the mechanical properties of products. Traditional methods of porosity control (microscopy) and non-destructive testing (computed tomography) usually are not applicable at the production site. In this study, sensitivity of three examined testing modalities based on acoustic methods and vibration analysis to changes in the volumetric porosity of 3DP parts was examined. Test objects were cylindrical specimens made of AlMg powder by 3DP with a gradually dosed porosity from 0.5 to 4.0%. Ultrasonic testing by through transmission showed the best accuracy using ultrasound velocity and pulse intensity parameters. Shifts of resonant frequency and spectral density and appearance of side harmonics were the manifestations of increased porosity using vibration approaches. The method comprising a loudspeaker as a vibration exciter and an optoelectronic device for remote sensing of vibration is the most attractive from the point of view of application to objects of complex geometry. https://www.ndt.net/search/docs.php3?id=28102 |
| spellingShingle | Alexey Tatarinov Alexey Nikolas Vladimir Nikulenkov Vyacheslavs Zemchenkovs Jekaterina Kuzmina Viktors Mironovs Non-contact assessment of porosity in metal 3D printed parts by vibration spectra Research and Review Journal of Nondestructive Testing |
| title | Non-contact assessment of porosity in metal 3D printed parts by vibration spectra |
| title_full | Non-contact assessment of porosity in metal 3D printed parts by vibration spectra |
| title_fullStr | Non-contact assessment of porosity in metal 3D printed parts by vibration spectra |
| title_full_unstemmed | Non-contact assessment of porosity in metal 3D printed parts by vibration spectra |
| title_short | Non-contact assessment of porosity in metal 3D printed parts by vibration spectra |
| title_sort | non contact assessment of porosity in metal 3d printed parts by vibration spectra |
| url | https://www.ndt.net/search/docs.php3?id=28102 |
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