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dc.contributor.authorBuj Corral, Irene
dc.contributor.authorZayas Figueras, Enrique Ernesto
dc.contributor.authorMontaña Faiget, Àngels
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Mecànica
dc.identifier.citationBuj-Corral, I.; Zayas F, E.E.; Montaña-Faiget, À. Comparative study of flank cams manufactured by WEDM and willing processes. "Metals", 27 Agost 2020, vol. 10, núm. 9, p. 1158:1-1158:18.
dc.description.abstractCam-follower mechanisms are usually employed in different machines, like combustion engines, sewing machines, machine tools, etc. In the present paper, the option to manufacture cams utilizing wire electrical discharge machining (WEDM) has been considered. For this, surface roughness and shape error of cam profiles manufactured by the processes of milling and wire electrical discharge machining (WEDM) are presented. The methodology used covers dfferent stages: design, prototyping, manufacturing, and measurement of the cams. As a reference, a cam-follower mechanism from a motorcycle internal combustion engine has been used. A reverse engineering process has been performed to determine the geometrical parameters of the mechanism, which are used for the synthesis of the profile of the cam and its subsequent design. The manufacturing process of the cams has been assisted by CAD-CAM (Computer Assisted Drawing-Computer Assisted Manufacturing) software. Using fused filament fabrication (FFF), a physical prototype of the cam has been manufactured, in order to validate the goodness of the design. Finally, the roughness and shape parameters have been measured on the contour surface of the cams. The arithmetical mean roughness Ra value of the milled cam was 0.269 µm, below the requirement of 0.4 µm, and shape error was 18 µm, below 50 µm. Shape error of the WEDM cam of 48 µm meets the requirements for cams. However, the Ra value of 1.212 µm, exceeded the limit. For this reason, a finish operation is recommended in this case. Some advantages of WEDM cams over milled cams are that diferent conductive materials can be employed, more complex shapes can be obtained, and that, in rough operations, the amount of material to be removed in subsequent operations is considerably reduced.
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)
dc.rightsAttribution-BY 4.0 International
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica::Processos de fabricació mecànica
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica::Processos de fabricació mecànica::Màquines i mecanismes
dc.subject.lcshMechanical movements
dc.subject.otherCam profile design
dc.subject.otherSurface roughness
dc.subject.otherShape error
dc.titleComparative study of flank cams manufactured by WEDM and willing processes
dc.subject.lemacMoviments mecànics
dc.contributor.groupUniversitat Politècnica de Catalunya. TECNOFAB - Grup de Recerca en Tecnologies de Fabricació
dc.contributor.groupUniversitat Politècnica de Catalunya. CDEI-DM - Centre de Disseny d'Equips Industrials-Dinàmica de Màquines
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorBuj-Corral, I.; Zayas F, E.E.; Montaña-Faiget, À.

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