Effect of PCBN tool grade and cutting type on hard turning of high-chromium white cast iron

Oliveira, Adilson José de; Boing, Denis; Schroeter, Rolf Bertrand

Effect of PCBN tool grade and cutting type on hard turning of high-chromium white cast iron

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dc.contributor.author	Oliveira, Adilson José de
dc.contributor.author	Boing, Denis
dc.contributor.author	Schroeter, Rolf Bertrand
dc.date.accessioned	2021-03-23T18:15:26Z
dc.date.available	2021-03-23T18:15:26Z
dc.date.issued	2015-06-24
dc.description.resumo	The turning of mechanical construction and bearing steels is widely carried out using PCBN and oxide ceramic tools, even when materials have high hardness (40 to 60 HRC), reached after quenching and tempering heat treatment. However, mechanical components submitted to severe abrasive loads show, in addition to matrix hardness, the presence of a high-volume fraction of hard particles in the microstructure. Turning materials with a high content of hard particles in the microstructure will result in high rates of abrasive wear or damage to the cutting edges of the tool. Information regarding the turning of materials characterized by a high-volume fraction of carbides in the microstructure is limited in literature. The objective of this study was to determine the performance of two grades of PCBN tools (high CBN and low CBN content with an added ceramic phase) in the turning of high-chromium white cast iron applying continuous and interrupte cutting. Evaluations of tools’ life, wear mechanisms at the tool cutting edges, roughness, and microstructure remaining on the turned surface were carried out. The results show that the grades with low CBN content and the addition of a ceramic phase, the tool life was three times longer than that of the grades with high CBN content. The most interesting result obtained concerns the microstructural modifications in a narrow subsurface layer of the turned material. Carbide fragmentation and alignment in the direction of the cutting shear plane were identified, which may potentiate the use of the material	pt_BR
dc.identifier.citation	OLIVEIRA, Adilson José de; BOING, Denis; SCHROETER, Rolf Bertrand. Effect of PCBN tool grade and cutting type on hard turning of high-chromium white cast iron. The International Journal of Advanced Manufacturing Technology, [S.L.], v. 82, n. 5-8, p. 797-807, 24 jun. 2015. Disponível em: https://link.springer.com/article/10.1007/s00170-015-7426-2. Acesso em: 13 out. 2020. http://dx.doi.org/10.1007/s00170-015-7426-2.	pt_BR
dc.identifier.doi	10.1007/s00170-015-7426-2
dc.identifier.issn	0268-3768
dc.identifier.issn	1433-3015
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/31977
dc.language	en	pt_BR
dc.publisher	Springer Science and Business Media LLC	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Turning	pt_BR
dc.subject	PCBN grades	pt_BR
dc.subject	White cast iron	pt_BR
dc.subject	Microstructural modifications	pt_BR
dc.title	Effect of PCBN tool grade and cutting type on hard turning of high-chromium white cast iron	pt_BR
dc.type	article	pt_BR