Laser Irradiation Effects in Simulated Laser-Assisted Machining of Type 316L SS
Laser surface heating allows for the thermal treating of clearly defined surface areas thanks to the ability to focus the laser beam to a specific point. Thus, the rapid heating and subsequent rapid cooling when the beam is moved away, typically associated with laser light, is used as an in-machine...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-07-01
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| Series: | Journal of Manufacturing and Materials Processing |
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| Online Access: | http://www.mdpi.com/2504-4494/2/3/45 |
| _version_ | 1818153729198653440 |
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| author | Agostino Maurotto Fabio Scenini Bjoern Kraemer |
| author_facet | Agostino Maurotto Fabio Scenini Bjoern Kraemer |
| author_sort | Agostino Maurotto |
| collection | DOAJ |
| description | Laser surface heating allows for the thermal treating of clearly defined surface areas thanks to the ability to focus the laser beam to a specific point. Thus, the rapid heating and subsequent rapid cooling when the beam is moved away, typically associated with laser light, is used as an in-machine process to improve the machinability of hard- or difficult-to-machine alloys. In laser-assisted machining (LAM), laser irradiation occurs simultaneously with materials removal; however, it is difficult to ensure a complete removal of the irradiated areas. In the present work, the two processes were decoupled to investigate the interaction effects of laser radiation type 316L. The surface residual stress, hardness, and microstructure of milled flat specimens were measured prior to and after diode-generated laser beam irradiation. Laser exposure of samples was conducted under protective gas shielding (Argon) using heating parameter combinations that would limit or avoid laser surface melting. Conversely, when the surface underwent melting, the formation of a fast solidification layer resulted in the removal of the cold-worked effect and the significant softening of the surface layers. Beam power density in-homogeneities and incomplete machining of the treated areas in LAM have the potential to introduce significant undesired changes on components’ surface integrity. |
| first_indexed | 2024-12-11T14:15:14Z |
| format | Article |
| id | doaj.art-77c96e6fd31749bc8272d8a64eb0e98c |
| institution | Directory Open Access Journal |
| issn | 2504-4494 |
| language | English |
| last_indexed | 2024-12-11T14:15:14Z |
| publishDate | 2018-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Manufacturing and Materials Processing |
| spelling | doaj.art-77c96e6fd31749bc8272d8a64eb0e98c2022-12-22T01:03:13ZengMDPI AGJournal of Manufacturing and Materials Processing2504-44942018-07-01234510.3390/jmmp2030045jmmp2030045Laser Irradiation Effects in Simulated Laser-Assisted Machining of Type 316L SSAgostino Maurotto0Fabio Scenini1Bjoern Kraemer2Nuclear AMRC, The University of Sheffield, Sheffield S60 5WG, UKMaterials Performance Centre, The University of Manchester, Manchester M13 9PL, UKNuclear AMRC, The University of Sheffield, Sheffield S60 5WG, UKLaser surface heating allows for the thermal treating of clearly defined surface areas thanks to the ability to focus the laser beam to a specific point. Thus, the rapid heating and subsequent rapid cooling when the beam is moved away, typically associated with laser light, is used as an in-machine process to improve the machinability of hard- or difficult-to-machine alloys. In laser-assisted machining (LAM), laser irradiation occurs simultaneously with materials removal; however, it is difficult to ensure a complete removal of the irradiated areas. In the present work, the two processes were decoupled to investigate the interaction effects of laser radiation type 316L. The surface residual stress, hardness, and microstructure of milled flat specimens were measured prior to and after diode-generated laser beam irradiation. Laser exposure of samples was conducted under protective gas shielding (Argon) using heating parameter combinations that would limit or avoid laser surface melting. Conversely, when the surface underwent melting, the formation of a fast solidification layer resulted in the removal of the cold-worked effect and the significant softening of the surface layers. Beam power density in-homogeneities and incomplete machining of the treated areas in LAM have the potential to introduce significant undesired changes on components’ surface integrity.http://www.mdpi.com/2504-4494/2/3/45laser assisted machiningsurface integritymillingaustenitic steelhybrid machining |
| spellingShingle | Agostino Maurotto Fabio Scenini Bjoern Kraemer Laser Irradiation Effects in Simulated Laser-Assisted Machining of Type 316L SS Journal of Manufacturing and Materials Processing laser assisted machining surface integrity milling austenitic steel hybrid machining |
| title | Laser Irradiation Effects in Simulated Laser-Assisted Machining of Type 316L SS |
| title_full | Laser Irradiation Effects in Simulated Laser-Assisted Machining of Type 316L SS |
| title_fullStr | Laser Irradiation Effects in Simulated Laser-Assisted Machining of Type 316L SS |
| title_full_unstemmed | Laser Irradiation Effects in Simulated Laser-Assisted Machining of Type 316L SS |
| title_short | Laser Irradiation Effects in Simulated Laser-Assisted Machining of Type 316L SS |
| title_sort | laser irradiation effects in simulated laser assisted machining of type 316l ss |
| topic | laser assisted machining surface integrity milling austenitic steel hybrid machining |
| url | http://www.mdpi.com/2504-4494/2/3/45 |
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