Design and Numerical Analysis of an Inside-Beam Powder Feeding Nozzle for Wide-Band Laser Cladding
Wide-band laser cladding technology has emerged as a solution to the limitations of traditional cladding techniques, which are small single-path dimensions and low processing efficiency. The existing wide-band cladding technology presents challenges related to the high precision required for the las...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/17/1/12 |
| _version_ | 1797358513629954048 |
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| author | Lin Lu Tuo Shi Gang Li Chao Wei Geyan Fu |
| author_facet | Lin Lu Tuo Shi Gang Li Chao Wei Geyan Fu |
| author_sort | Lin Lu |
| collection | DOAJ |
| description | Wide-band laser cladding technology has emerged as a solution to the limitations of traditional cladding techniques, which are small single-path dimensions and low processing efficiency. The existing wide-band cladding technology presents challenges related to the high precision required for the laser–powder coupling and the significant powder-divergence phenomenon. Based on the inside-beam powder-feeding technology, a wide-band powder-feeding nozzle was designed using the multi-channel powder flow shaping method. The size of the powder spot obtained at the processing location can reach 40 mm × 3 mm. A computational fluid dynamics analysis using the FLUENT software was conducted to investigate the impact of the nozzle’s structural parameters on the powder distribution. It was determined that the optimal configuration was achieved when the powder-feeding channel was 8, and the transverse and longitudinal dimensions for the collimating gas outlet were 0.5 mm and 1 mm, respectively. Among the process parameters, an increase in the carrier gas flow rate was found to effectively enhance the stability of powder transportation. However, the powder feed rate had minimal impact on the powder concentration distribution, and the collimating gas flow rate appeared to have a minimal effect on the divergence angle of the powder stream. Wide-band laser cladding experiments were conducted using the designed powder-feeding nozzle, and a single-path cladding with a width of 39.96 mm was finally obtained. |
| first_indexed | 2024-03-08T15:03:06Z |
| format | Article |
| id | doaj.art-200d613b030d4e358a87f3af7b55feaa |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-08T15:03:06Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-200d613b030d4e358a87f3af7b55feaa2024-01-10T15:02:07ZengMDPI AGMaterials1996-19442023-12-011711210.3390/ma17010012Design and Numerical Analysis of an Inside-Beam Powder Feeding Nozzle for Wide-Band Laser CladdingLin Lu0Tuo Shi1Gang Li2Chao Wei3Geyan Fu4Department of Mechanical and Electrical Engineering, Suzhou Vocational Institute of Industrial Technology, Suzhou 215104, ChinaSchool of Optoelectronic Science and Engineering, Soochow University, Suzhou 215021, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Mechanical and Electrical Engineering, Soochow University, Suzhou 215021, ChinaSchool of Mechanical and Electrical Engineering, Soochow University, Suzhou 215021, ChinaWide-band laser cladding technology has emerged as a solution to the limitations of traditional cladding techniques, which are small single-path dimensions and low processing efficiency. The existing wide-band cladding technology presents challenges related to the high precision required for the laser–powder coupling and the significant powder-divergence phenomenon. Based on the inside-beam powder-feeding technology, a wide-band powder-feeding nozzle was designed using the multi-channel powder flow shaping method. The size of the powder spot obtained at the processing location can reach 40 mm × 3 mm. A computational fluid dynamics analysis using the FLUENT software was conducted to investigate the impact of the nozzle’s structural parameters on the powder distribution. It was determined that the optimal configuration was achieved when the powder-feeding channel was 8, and the transverse and longitudinal dimensions for the collimating gas outlet were 0.5 mm and 1 mm, respectively. Among the process parameters, an increase in the carrier gas flow rate was found to effectively enhance the stability of powder transportation. However, the powder feed rate had minimal impact on the powder concentration distribution, and the collimating gas flow rate appeared to have a minimal effect on the divergence angle of the powder stream. Wide-band laser cladding experiments were conducted using the designed powder-feeding nozzle, and a single-path cladding with a width of 39.96 mm was finally obtained.https://www.mdpi.com/1996-1944/17/1/12inside-beam powder feedinglaser internal powder feedingwide-band laser claddingpowder-feeding device |
| spellingShingle | Lin Lu Tuo Shi Gang Li Chao Wei Geyan Fu Design and Numerical Analysis of an Inside-Beam Powder Feeding Nozzle for Wide-Band Laser Cladding Materials inside-beam powder feeding laser internal powder feeding wide-band laser cladding powder-feeding device |
| title | Design and Numerical Analysis of an Inside-Beam Powder Feeding Nozzle for Wide-Band Laser Cladding |
| title_full | Design and Numerical Analysis of an Inside-Beam Powder Feeding Nozzle for Wide-Band Laser Cladding |
| title_fullStr | Design and Numerical Analysis of an Inside-Beam Powder Feeding Nozzle for Wide-Band Laser Cladding |
| title_full_unstemmed | Design and Numerical Analysis of an Inside-Beam Powder Feeding Nozzle for Wide-Band Laser Cladding |
| title_short | Design and Numerical Analysis of an Inside-Beam Powder Feeding Nozzle for Wide-Band Laser Cladding |
| title_sort | design and numerical analysis of an inside beam powder feeding nozzle for wide band laser cladding |
| topic | inside-beam powder feeding laser internal powder feeding wide-band laser cladding powder-feeding device |
| url | https://www.mdpi.com/1996-1944/17/1/12 |
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