Post-Processing of Complex SLM Parts by Barrel Finishing
Selective laser melting (SLM) enables the production of metal complex shapes that are difficult or impossible to obtain with conventional production processes. However, the attainable surface quality is insufficient for most applications; thus, a secondary finishing is frequently required. Barrel fi...
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MDPI AG
2020-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/4/1382 |
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doaj-2d010289c9dd4fb8889d68d1728f7e192020-11-25T02:03:24ZengMDPI AGApplied Sciences2076-34172020-02-01104138210.3390/app10041382app10041382Post-Processing of Complex SLM Parts by Barrel FinishingAlberto Boschetto0Luana Bottini1Luciano Macera2Francesco Veniali3Department of mechanical and aerospace engineering, Sapienza University of Rome Via Eudossiana 18, 00184 Rome, ItalyDepartment of mechanical and aerospace engineering, Sapienza University of Rome Via Eudossiana 18, 00184 Rome, ItalyDepartment of mechanical and aerospace engineering, Sapienza University of Rome Via Eudossiana 18, 00184 Rome, ItalyDepartment of mechanical and aerospace engineering, Sapienza University of Rome Via Eudossiana 18, 00184 Rome, ItalySelective laser melting (SLM) enables the production of metal complex shapes that are difficult or impossible to obtain with conventional production processes. However, the attainable surface quality is insufficient for most applications; thus, a secondary finishing is frequently required. Barrel finishing is an interesting candidate but is often applied without consistent criteria aimed at finding processing parameters. This work presents a methodology based on Bagnold number evaluation and bed behavior diagram, developed on experimental apparatus with different charges and process parameters. The experimentation on an industrial machine and the profilometric analysis allowed the identification of appropriate process parameters and charge media for finishing the investigated materials (Ti6Al4V and Inconel718). Two case studies, characterized by complex shapes, were considered, and consistent surface measures allowed understanding the capability of the technology.https://www.mdpi.com/2076-3417/10/4/1382selective laser meltingbarrel finishingti6al4vinconel718post processingroughness |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Alberto Boschetto Luana Bottini Luciano Macera Francesco Veniali |
| spellingShingle |
Alberto Boschetto Luana Bottini Luciano Macera Francesco Veniali Post-Processing of Complex SLM Parts by Barrel Finishing Applied Sciences selective laser melting barrel finishing ti6al4v inconel718 post processing roughness |
| author_facet |
Alberto Boschetto Luana Bottini Luciano Macera Francesco Veniali |
| author_sort |
Alberto Boschetto |
| title |
Post-Processing of Complex SLM Parts by Barrel Finishing |
| title_short |
Post-Processing of Complex SLM Parts by Barrel Finishing |
| title_full |
Post-Processing of Complex SLM Parts by Barrel Finishing |
| title_fullStr |
Post-Processing of Complex SLM Parts by Barrel Finishing |
| title_full_unstemmed |
Post-Processing of Complex SLM Parts by Barrel Finishing |
| title_sort |
post-processing of complex slm parts by barrel finishing |
| publisher |
MDPI AG |
| series |
Applied Sciences |
| issn |
2076-3417 |
| publishDate |
2020-02-01 |
| description |
Selective laser melting (SLM) enables the production of metal complex shapes that are difficult or impossible to obtain with conventional production processes. However, the attainable surface quality is insufficient for most applications; thus, a secondary finishing is frequently required. Barrel finishing is an interesting candidate but is often applied without consistent criteria aimed at finding processing parameters. This work presents a methodology based on Bagnold number evaluation and bed behavior diagram, developed on experimental apparatus with different charges and process parameters. The experimentation on an industrial machine and the profilometric analysis allowed the identification of appropriate process parameters and charge media for finishing the investigated materials (Ti6Al4V and Inconel718). Two case studies, characterized by complex shapes, were considered, and consistent surface measures allowed understanding the capability of the technology. |
| topic |
selective laser melting barrel finishing ti6al4v inconel718 post processing roughness |
| url |
https://www.mdpi.com/2076-3417/10/4/1382 |
| work_keys_str_mv |
AT albertoboschetto postprocessingofcomplexslmpartsbybarrelfinishing AT luanabottini postprocessingofcomplexslmpartsbybarrelfinishing AT lucianomacera postprocessingofcomplexslmpartsbybarrelfinishing AT francescoveniali postprocessingofcomplexslmpartsbybarrelfinishing |
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1724948583457751040 |