Improving deep drawability of HC300LA sheet metal by warm forming

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dc.contributor.authorSen, Nuri
dc.contributor.authorKurgan, Naci
dc.date.accessioned2024-09-29T15:50:56Z
dc.date.available2024-09-29T15:50:56Z
dc.date.issued2016
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThe formability of high-strength sheet materials is limited at room temperatures. In this study, the first of its kind to be conducted, experimental research was performed on the formability of HC300LA-grade sheet material using the warm deep drawing (WDD) method. Temperature control is among the most important parameters in the WDD method. To increase the limiting drawing ratio (LDR) of HC300LA-grade sheet material, a new warm deep drawing method featuring sensitive temperature control was designed and manufactured. With this new method, the formability of HC300L-grade sheet material was considerably increased by heating the flange zone of the blanks under blank-holder force (BHF). Before the experimental study, unidirectional tensile tests were applied at room temperature (RT), 150 degrees C, and 300 degrees C. At the completion of the test conducted at 300 degrees C, dynamic strain aging (DSA) was seen in the test specimen. As a result of DSA, the HC300LA-grade sheet material became brittle and its formability decreased. Experimental studies were therefore conducted in the temperature range of 170 and 295 degrees C. LDR for a 1.2-mm sheet thickness of HC300LA-grade sheet material, which is 2.14 at RT, increased to 2.61 after applying this method. In experimental studies on LDR involving 1.5-mm sheet thickness, which is 2.15 at RT, the ratio increased to 2.59. The drawing ratio (DR) increased by 21.96 and 20.45 % for 1.2 mm sheet thickness and 1.5 mm sheet thickness, respectively. Moreover, the microstructures of the warm cup's punch corner region, and wall and bottom regions were investigated under an optical microscope. The results showed whether any changes occurred in the microstructures.en_US
dc.description.sponsorshipScientific Research Projects Department of Karabuk University [KBU-BAP-13/2-DR-017]en_US
dc.description.sponsorshipThe authors of this study would like to thank the Metal Forming Center of Excellence for their help in conducting tensile tests at high temperatures using a dilatometer and for the use of the press and the auxiliary equipment in the Manufacturing Engineering Department of the ATILIM University in Ankara, Turkey. The research was supported by the Scientific Research Projects Department of Karabuk University (KBU-BAP-13/2-DR-017).en_US
dc.identifier.doi10.1007/s00170-015-7400-z
dc.identifier.endpage995en_US
dc.identifier.issn0268-3768
dc.identifier.issn1433-3015
dc.identifier.issue5-8en_US
dc.identifier.scopus2-s2.0-84955176657en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage985en_US
dc.identifier.urihttps://doi.org/10.1007/s00170-015-7400-z
dc.identifier.urihttps://hdl.handle.net/20.500.14619/3808
dc.identifier.volume82en_US
dc.identifier.wosWOS:000368996000020en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer London Ltden_US
dc.relation.ispartofInternational Journal of Advanced Manufacturing Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectWarm deep drawingen_US
dc.subjectMicrostructureen_US
dc.subjectLDRen_US
dc.subjectHC300LAen_US
dc.titleImproving deep drawability of HC300LA sheet metal by warm formingen_US
dc.typeArticleen_US

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