Texturization of engine components with shaped ultrashort laser pulses

dc.creatorROSSI, WAGNER de
dc.creatorVIEIRA, ALEXANDRE
dc.date2019
dc.date2019-12-20T13:08:37Z
dc.date2019-12-20T13:08:37Z
dc.date.accessioned2023-09-28T14:12:57Z
dc.date.available2023-09-28T14:12:57Z
dc.identifier1880-0688
dc.identifierhttp://repositorio.ipen.br/handle/123456789/30482
dc.identifier2
dc.identifier14
dc.identifier10.2961/jlmn.2019.02.0005
dc.identifier0000-0003-1371-7521
dc.identifier11.799
dc.identifier40.33
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9000711
dc.descriptionThe aim of this work was to texturize surfaces of steel engine components to reduce the coefficient of dynamic friction and wear between two surfaces. The elements of the texture had the shape of a spherical half-shell and were produced by the overlap of femtosecond laser pulses with donut shape. The incubation effect was estimated using the D-scan method to relate the ablation threshold to the number of overlapping pulses. Thus, the control of the focal position of the laser beam and the number of overlapped pulses, taking into account the effects of incubation, made it possible to obtain this type of dimple with controlled shape and size. A distribution of dimples with density of 11% caused an 18% reduction in the coefficient of friction in a tribological pair DIN 16MnCr5 and SAE 52100 steel sphere.
dc.descriptionFunda????o de Amparo ?? Pesquisa do Estado de S??o Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Cient??fico e Tecnol??gico (CNPq)
dc.descriptionFAPESP: 13/26113-6
dc.descriptionCNPq: 307063/2016-0
dc.format142-146
dc.relationJournal of Laser Micro Nanoengineering
dc.rightsopenAccess
dc.subjecttexture
dc.subjectlasers
dc.subjectmachining
dc.subjectmicrostructure
dc.subjectlaser radiation
dc.subjectlaser beam machining
dc.subjectsteels
dc.subjectbeam shaping
dc.subjectfriction
dc.titleTexturization of engine components with shaped ultrashort laser pulses
dc.typeArtigo de peri??dico
dc.coverageI


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