Effect of high-speed steel screw drill geometry on cutting performance when machining austenitic stainless steel

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dc.contributor.authorSedlák, Josefcs
dc.contributor.authorZouhar, Jancs
dc.contributor.authorKolomý, Štěpáncs
dc.contributor.authorSlaný, Martincs
dc.contributor.authorNečesánek, Emilcs
dc.coverage.issue1cs
dc.coverage.volume13cs
dc.date.accessioned2024-02-15T10:45:14Z
dc.date.available2024-02-15T10:45:14Z
dc.date.issued2023-06-07cs
dc.description.abstractDrilling into the solid material is one of the basic technological operations, which creates a cylindrical hole in an appropriate time with required quality. Drilling operation demands a favourable removal of chips from the cutting area because a creation of an undesirable shape of chips can impart a lower quality of the drilled hole corresponding with the generation of excess heat due to the intense contact of the chip with drill. The solution for a proper machining is a suitable modification of the drill geometry i.e., point and clearance angles as presented in current study. The tested drills are made of M35 high-speed steel characterized by a very thin core at the point of the drill. An interesting feature of the drills is the use of cutting speed higher than 30 m min(-1), with the feed of 0.2 mm per revolution. The surface roughness (Ra and Rz lower than 1 mu m and 6 mu m respectively), cylindricity (0.045 mm), roundness (0.025 mm), perpendicularity of the hole axis (0.025 mm), diameters and position of the individual holes were achieved for a drill with point angle 138.32 degrees and clearance angle 6.92 respectively. The increase of the drill point angle by 6 degrees resulted in the decrease in the feed force of more than 150 N. In addition, an increase of the clearance angle by 1 degrees resulted with a decrease in the feed force of 70 N. The results of the experiment showed that with the correct geometry of the tool the effective machining without using internal cooling can be realised.en
dc.formattextcs
dc.format.extent1-13cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationScientific Reports. 2023, vol. 13, issue 1, p. 1-13.en
dc.identifier.doi10.1038/s41598-023-36448-ycs
dc.identifier.issn2045-2322cs
dc.identifier.orcid0000-0002-9819-8259cs
dc.identifier.orcid0000-0001-8031-8366cs
dc.identifier.orcid0000-0003-3781-692Xcs
dc.identifier.orcid0000-0002-9162-0066cs
dc.identifier.other184246cs
dc.identifier.researcheridE-3732-2018cs
dc.identifier.researcheridC-4924-2015cs
dc.identifier.researcheridABG-6911-2020cs
dc.identifier.scopus37041666300cs
dc.identifier.scopus36939223500cs
dc.identifier.scopus56584112000cs
dc.identifier.urihttps://hdl.handle.net/11012/244972
dc.language.isoencs
dc.publisherSpringer Naturecs
dc.relation.ispartofScientific Reportscs
dc.relation.urihttps://www.nature.com/articles/s41598-023-36448-ycs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2045-2322/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectpoint angleen
dc.subjectclearance angleen
dc.subjectdrillingen
dc.subjectscrew drillen
dc.subjecthigh-speed steelen
dc.subjectstainless steelen
dc.titleEffect of high-speed steel screw drill geometry on cutting performance when machining austenitic stainless steelen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-184246en
sync.item.dbtypeVAVen
sync.item.insts2024.02.15 11:45:14en
sync.item.modts2024.02.15 11:13:21en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. ÚST-odbor technologie obráběnícs
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