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dc.contributor.authorBEKÖZ ÜLLEN, Nuray
dc.date.accessioned2021-03-05T21:27:43Z
dc.date.available2021-03-05T21:27:43Z
dc.identifier.citationBEKÖZ ÜLLEN N., "Characterization of machinability of sintered steel foams having different porosities during drilling operations", MACHINING SCIENCE AND TECHNOLOGY, 2020
dc.identifier.issn1091-0344
dc.identifier.othervv_1032021
dc.identifier.otherav_d8fc6e6b-94fe-42b1-9a5e-8a40521312b4
dc.identifier.urihttp://hdl.handle.net/20.500.12627/143147
dc.identifier.urihttps://doi.org/10.1080/10910344.2020.1815051
dc.description.abstractSteel foams are a new class of engineering materials with exceptional structure and properties. Foams produced by powder metallurgy generally have a near-net shape, however, sometimes machining operations may be required. The presence of porosity in steel foams significantly affects the cutting process and causes poor machinability. This study deals with the evaluation of the machinability of Cu-Ni-Mo-based steel foams having different porosity produced by powder metallurgy. High speed steel and carbide-tipped drills were used for the drilling. All tests were performed in dry condition with drill diameter of 3 mm. The drilling characteristics were evaluated in terms of the surface roughness, chip formation, drilling force, tool wear, microstructure and hardness change after drilling. The machinability was also evaluated by measuring average width of breakout and skewness values of the hole drilled. The results indicated that the increase of porosity negatively affected the drilling quality of high porous steels. Both drills broke the chips in powder form and produced discontinuous chips. High porous parts exhibited higher hardness change as compared to lower ones. The carbide drill showed acceptable drilling forces and surface quality. HSS drill is not suitable for drilling due to poor hole quality and high drill wear.
dc.language.isoeng
dc.subjectZiraat
dc.subjectTarım Makineleri
dc.subjectTarım Alet ve Makineleri
dc.subjectMühendislik ve Teknoloji
dc.subjectMalzeme Bilimi
dc.subjectTarımsal Bilimler
dc.subjectMALZEME BİLİMİ, MULTIDISCIPLINARY
dc.subjectMÜHENDİSLİK, MEKANİK
dc.subjectMühendislik, Bilişim ve Teknoloji (ENG)
dc.subjectMühendislik
dc.subjectMÜHENDİSLİK, ÜRETİM
dc.titleCharacterization of machinability of sintered steel foams having different porosities during drilling operations
dc.typeMakale
dc.relation.journalMACHINING SCIENCE AND TECHNOLOGY
dc.contributor.departmentİstanbul Üniversitesi-Cerrahpaşa , Mühendislik Fakültesi , Metalurji Ve Malzeme Mühendisliği Bölümü
dc.contributor.firstauthorID2286275


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