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Investigation of surface integrity in the laser-assisted turning of AISI 4340 hardened steel

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dc.contributor.author Khatir, Farzad Ahmadi
dc.contributor.author Sadeghi, Mohammad Hossein
dc.contributor.author Akar, Samet
dc.date.accessioned 2022-05-27T12:51:58Z
dc.date.available 2022-05-27T12:51:58Z
dc.date.issued 2021-01
dc.identifier.citation Khatir, Farzad Ahmadi; Sadeghi, Mohammad Hossein; Akar, Samet (2021). "Investigation of surface integrity in the laser-assisted turning of AISI 4340 hardened steel", Journal of Manufacturing Processes, Vol. 61, pp. 173-189. tr_TR
dc.identifier.issn 1526-6125
dc.identifier.uri http://hdl.handle.net/20.500.12416/5596
dc.description.abstract The use of laser-assisted turning (LAT) can improve different aspects of the machinability of high hardness/strength materials. The heat applied in this process reduces the strength of the material and upon a proper selection of laser heat source and machining process parameters, a significant improvement in the machining process can be achieved. This research studies the effect of machining and laser heat source parameters on the surface integrity of the LAT process of AISI 4340 hardened steel with a hardness of 560 HV using Response Surface Methodology (RSM). The effect of machining process parameters (feed rate, depth of cut and cutting speed) and laser power on the surface integrity characteristics of the machined surfaces (white layer thickness, microhardness, surface roughness, and surface chemical composition) are investigated. A detailed finite element simulation of the process has been performed to better understand the physics of the process and to interpret the experimental results. Laser power and feed rate are shown to be the most significant parameters affecting the surface integrity of the machined surfaces. It has been shown that a proper selection of machining and laser heat source parameters makes it possible to minimize the adverse effect of laser heating in the LAT process. This can pave the way for the widespread application of the LAT process by eliminating one of the most important obstacles of this process by controlling the laser heat diffusion into the workpiece. © 2020 tr_TR
dc.language.iso eng tr_TR
dc.relation.isversionof 10.1016/j.jmapro.2020.09.073 tr_TR
dc.rights info:eu-repo/semantics/closedAccess tr_TR
dc.subject Finite Element Analysis tr_TR
dc.subject Hardened Steel tr_TR
dc.subject Laser-Assisted Turning tr_TR
dc.subject Surface Integrity tr_TR
dc.title Investigation of surface integrity in the laser-assisted turning of AISI 4340 hardened steel tr_TR
dc.type article tr_TR
dc.relation.journal Journal of Manufacturing Processes tr_TR
dc.contributor.authorID 315516 tr_TR
dc.identifier.volume 61 tr_TR
dc.identifier.startpage 173 tr_TR
dc.identifier.endpage 189 tr_TR
dc.contributor.department Çankaya Üniversitesi, Mühendislik Fakültesi, Makine Mühendisliği Bölümü tr_TR


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