Wear evolution and stress distribution of single CBN superabrasive grain in high-speed grinding

dc.contributor.author Wang, Jingwei
dc.contributor.author Yu, Tianyu
dc.contributor.author Ding, Wenfeng
dc.contributor.author Fu, Yucan
dc.contributor.author Bastawros, Ashraf
dc.contributor.department Aerospace Engineering
dc.contributor.department Mechanical Engineering
dc.contributor.department Materials Science and Engineering
dc.date 2018-05-26T20:53:55.000
dc.date.accessioned 2020-06-29T22:45:23Z
dc.date.available 2020-06-29T22:45:23Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 2018
dc.date.embargo 2019-05-18
dc.date.issued 2018-01-01
dc.description.abstract <p>In this study, both finite element analysis (FEA) and experimental observations were used to investigate the single CBN grain wear in high-speed grinding of Inconel 718 superalloy. The wear characteristics for each grinding pass were numerically assessed utilizing the tensile and compressive strength limits of the cutting grain. Additionally, stress distribution within the grain, chip formation and grinding force evolution during multiple passes were investigated. The combined experimental and numerical results show that the CBN grain wear has two major modes: the macro fracture on the grain top surface propagating from the rake surface, and the micro fracture near the cutting edges. The resultant tensile stress is the main factor inducing grain wear. The cutting edges will be under self-sharpening due to the grain wear. With multiple micro cutting edges engaged in grinding process, the limited material removal region was divided into different sliding, ploughing and cutting dominant regions. Overall, the ratio of material elements removed by a cutting process ranges from 80% to 20%, and continue to decrease during the grinding process. With a stronger effect of the cutting process, larger fluctuation of the grinding force will commence, however its average value remains below that with stronger sliding and ploughing process characteristics.</p>
dc.description.comments <p>This is the accepted manuscript of the article Wang, Jingwei, Tianyu Yu, Wenfeng Ding, Yucan Fu, and Ashraf F. Bastawros. "Wear evolution and stress distribution of single CBN superabrasive grain in high-speed grinding." <em>Precision Engineering</em> (2018). DOI: <a href="http://dx.doi.org/10.1016/j.precisioneng.2018.05.003" target="_blank">10.1016/j.precisioneng.2018.05.003</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/aere_pubs/121/
dc.identifier.articleid 1122
dc.identifier.contextkey 12194554
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath aere_pubs/121
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1965
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/aere_pubs/121/2018_Bastawros_WearEvolution.pdf|||Fri Jan 14 19:12:59 UTC 2022
dc.source.uri 10.1016/j.precisioneng.2018.05.003
dc.subject.disciplines Aerospace Engineering
dc.subject.disciplines Materials Science and Engineering
dc.subject.disciplines Mechanical Engineering
dc.subject.disciplines Mechanics of Materials
dc.subject.disciplines Structures and Materials
dc.subject.keywords Cubic boron nitride
dc.subject.keywords Single grain grinding
dc.subject.keywords Grain wear evolution
dc.subject.keywords Material removal process
dc.subject.keywords Finite element analysis
dc.title Wear evolution and stress distribution of single CBN superabrasive grain in high-speed grinding
dc.type article
dc.type.genre article
dspace.entity.type Publication
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