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Research on chip shear angle and built-up edge of slow-rate machining EN C45 and EN 16MnCr5 steels

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dc.title Research on chip shear angle and built-up edge of slow-rate machining EN C45 and EN 16MnCr5 steels en
dc.contributor.author Monková, Katarína
dc.contributor.author Monka, Peter Pavol
dc.contributor.author Sekeráková, Adriana
dc.contributor.author Tkáč, Jozef
dc.contributor.author Bednařík, Martin
dc.contributor.author Kováč, Juraj
dc.contributor.author Jahnátek, Andrej
dc.relation.ispartof Metals
dc.identifier.issn 2075-4701 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2019
utb.relation.volume 9
utb.relation.issue 9
dc.type article
dc.language.iso en
dc.publisher MDPI AG
dc.identifier.doi 10.3390/met9090956
dc.relation.uri https://www.mdpi.com/2075-4701/9/9/956
dc.subject shear angle en
dc.subject chip root en
dc.subject shape en
dc.subject built-up edge en
dc.subject slow-rate machining en
dc.description.abstract One of the phenomena that accompanies metal cutting is extensive plastic deformation and fracture. The excess material is plastically deformed, fractured, and removed from the workpiece in the form of chips, the formation of which depends on the type of crack and their propagation. Even in case of the so-called ‘continuous’ chip formation there still has to be a fracture, as the cutting process involves the separation of a chip from the workpiece. Controlling the chip separation and its patterning in a suitable form is the most important problem of the current industrial processes, which should be highly automated to achieve maximal production efficiency. The article deals with the chip root evaluation of two EN C45 and EN 16MnCr5 steels, focusing on the shear angle measuring and built-up edge observation as important factors influencing the machining process, because a repeated formation and dislodgement of built-up edge unfavorably affects changes in the rake angle, causing fluctuation in cutting forces, and thus inducing vibration, which is harmful to the cutting tool. Consequently, this leads to surface finish deterioration. The planing was selected as a slow-rate machining operation, within which orthogonal and oblique cutting has been used for the comparative chips’ root study. The planned experiment was implemented at three levels (lower, basic, and upper) for the test preparation and the statistical method, and regression function was used for the data evaluation. The mutual connections among the four considered factors (cutting speed, cutting depth, tool cutting edge inclination, and rake angle) and investigated by the shear angle were plotted in the form of graphical dependencies. Finally, chips obtained from both steels types and within both cutting methods were systematically processed from the microscopic (chip root) and macroscopic (chip pattern) points of view. © 2019 by the authors. Licensee MDPI, Basel, Switzerland. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1009230
utb.identifier.obdid 43880616
utb.identifier.scopus 2-s2.0-85073332843
utb.identifier.wok 000489129800042
utb.source j-scopus
dc.date.accessioned 2019-11-20T10:30:31Z
dc.date.available 2019-11-20T10:30:31Z
dc.description.sponsorship Ministry of Education of the Slovak Republic [KEGA 007TUKE-4/2018]
dc.rights Attribution 4.0 International
dc.rights.uri http://creativecommons.org/licenses/by/4.0/
dc.rights.access openAccess
utb.contributor.internalauthor Monková, Katarína
utb.fulltext.sponsorship The article was prepared thanks to the direct support of the Ministry of Education of the Slovak Republic by grant KEGA 007TUKE-4/2018.
utb.wos.affiliation [Monkova, Katarina; Monka, Peter Pavol; Sekerakova, Adriana; Tkac, Jozef] Tech Univ Kosice, Fac Mfg Technol Seat Presov, Sturova 31, Presov 08001, Slovakia; [Monkova, Katarina; Bednarik, Martin] UTB Tomas Bata Univ Zlin, Fac Technol, Vavreckova 275, Zlin 76001, Czech Republic; [Kovac, Juraj] Tech Univ Kosice, Fac Mech Engn, Letna 9, Kosice 04200, Slovakia; [Jahnatek, Andrej] Jadrova Energet Spolocnost Slovenska As, Tomasikova 22, Bratislava 82102, Slovakia
utb.scopus.affiliation Faculty of Manufacturing Technologies with the Seat in Presov, Technical University of Kosice, Sturova 31, Presov, 08001, Slovakia; Faculty of Technology, UTB Tomas Bata University in Zlin, Vavreckova 275, Zlin, 76001, Czech Republic; Faculty of Mechanical Engineering, Technical University of Kosice, Letna 9, Kosice, 04200, Slovakia; Jadrová Energetická Spoločnosť Slovenska a s, Tomasikova 22, Bratislava, 82102, Slovakia
utb.fulltext.projects KEGA 007TUKE-4/2018
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