Additive manufacturing by means of laser-aided directed metal deposition of 2024 aluminium powder: Investigation and optimization
Directed metal deposition by means of laser beam is investigated in this article. The process is receiving increasingly interest in the frame of additive manufacturing to the purpose of maintenance, repair and overhaul of condemned products when severe conditions hindering the working order have bee...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2017-08-01
|
| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/1687814017714982 |
| _version_ | 1818210325512585216 |
|---|---|
| author | Fabrizia Caiazzo Vittorio Alfieri Paolo Argenio Vincenzo Sergi |
| author_facet | Fabrizia Caiazzo Vittorio Alfieri Paolo Argenio Vincenzo Sergi |
| author_sort | Fabrizia Caiazzo |
| collection | DOAJ |
| description | Directed metal deposition by means of laser beam is investigated in this article. The process is receiving increasingly interest in the frame of additive manufacturing to the purpose of maintenance, repair and overhaul of condemned products when severe conditions hindering the working order have been experienced. Minimal distortion, reduced heat-affected zones and better surface quality are benefited in comparison with conventional techniques. Namely, metal feeding of 2024 aluminium powder is considered to produce clad traces on 2024 aluminium plates, aiming to give grounds for repairing damaged real components using materials with same or similar features with respect to the parent metal. A fibre-delivered disc laser and a three-way feeding nozzle are used. The responses are discussed in terms of geometry, microstructure and microhardness both in the fusion zone and in the heat-affected zone; the optimization is conducted via desirability functions, based on proper technical constraints upon numerical modelling. Reparation of real parts, where cracks are machined to produce V-grooves to be filled, is aimed. |
| first_indexed | 2024-12-12T05:14:49Z |
| format | Article |
| id | doaj.art-4312d3e0245044539c44a4cf75f1896e |
| institution | Directory Open Access Journal |
| issn | 1687-8140 |
| language | English |
| last_indexed | 2024-12-12T05:14:49Z |
| publishDate | 2017-08-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-4312d3e0245044539c44a4cf75f1896e2022-12-22T00:36:48ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402017-08-01910.1177/1687814017714982Additive manufacturing by means of laser-aided directed metal deposition of 2024 aluminium powder: Investigation and optimizationFabrizia CaiazzoVittorio AlfieriPaolo ArgenioVincenzo SergiDirected metal deposition by means of laser beam is investigated in this article. The process is receiving increasingly interest in the frame of additive manufacturing to the purpose of maintenance, repair and overhaul of condemned products when severe conditions hindering the working order have been experienced. Minimal distortion, reduced heat-affected zones and better surface quality are benefited in comparison with conventional techniques. Namely, metal feeding of 2024 aluminium powder is considered to produce clad traces on 2024 aluminium plates, aiming to give grounds for repairing damaged real components using materials with same or similar features with respect to the parent metal. A fibre-delivered disc laser and a three-way feeding nozzle are used. The responses are discussed in terms of geometry, microstructure and microhardness both in the fusion zone and in the heat-affected zone; the optimization is conducted via desirability functions, based on proper technical constraints upon numerical modelling. Reparation of real parts, where cracks are machined to produce V-grooves to be filled, is aimed.https://doi.org/10.1177/1687814017714982 |
| spellingShingle | Fabrizia Caiazzo Vittorio Alfieri Paolo Argenio Vincenzo Sergi Additive manufacturing by means of laser-aided directed metal deposition of 2024 aluminium powder: Investigation and optimization Advances in Mechanical Engineering |
| title | Additive manufacturing by means of laser-aided directed metal deposition of 2024 aluminium powder: Investigation and optimization |
| title_full | Additive manufacturing by means of laser-aided directed metal deposition of 2024 aluminium powder: Investigation and optimization |
| title_fullStr | Additive manufacturing by means of laser-aided directed metal deposition of 2024 aluminium powder: Investigation and optimization |
| title_full_unstemmed | Additive manufacturing by means of laser-aided directed metal deposition of 2024 aluminium powder: Investigation and optimization |
| title_short | Additive manufacturing by means of laser-aided directed metal deposition of 2024 aluminium powder: Investigation and optimization |
| title_sort | additive manufacturing by means of laser aided directed metal deposition of 2024 aluminium powder investigation and optimization |
| url | https://doi.org/10.1177/1687814017714982 |
| work_keys_str_mv | AT fabriziacaiazzo additivemanufacturingbymeansoflaseraideddirectedmetaldepositionof2024aluminiumpowderinvestigationandoptimization AT vittorioalfieri additivemanufacturingbymeansoflaseraideddirectedmetaldepositionof2024aluminiumpowderinvestigationandoptimization AT paoloargenio additivemanufacturingbymeansoflaseraideddirectedmetaldepositionof2024aluminiumpowderinvestigationandoptimization AT vincenzosergi additivemanufacturingbymeansoflaseraideddirectedmetaldepositionof2024aluminiumpowderinvestigationandoptimization |