Advances in the interrupted surface manufacturing by applying different lubri-refrigeration techniques in the grinding process
Abstract
The grinding of interrupted geometries presents technical difficulties such as mechanical impacts and higher thermal gradients regarding the continuous process, resulting in decreased workpiece quality, premature tool wear, and increased costs. However, few studies about interrupted grinding are available. In this context, the present research evaluates the plunge cylindrical grinding of workpieces with different geometries (0, 2, 6, and 12 grooves), made of AISI 4340 quenched and tempered steel, using a CBN grinding wheel, conventional and converging nozzle in lubri-refrigeration, and three feed rates (0.25, 0.50, and 0.75 mm/min). The output parameters analyzed were surface roughness, roundness deviation, diametrical wheel wear, G-ratio, grinding power, metallographic analysis, and cost of the grinding wheel. The converging jet lubri-refrigeration method presented better performance than the conventional one in all tested conditions, reducing by up to 25% the surface roughness, 20% the roundness deviation, 11% the diametrical wheel wear, 11% the grinding power, and 23% the grinding wheel cost.
How to cite this document
Keywords
Language
Sponsor
Collections

Related items
Showing items related by title, author, creator and subject.
-
Núcleos de Ensino da Unesp: artigos 2009
Pinho, Sheila Zambello de; Oliveira, José Brás Barreto de
; Gazola, Rodrigo José Cristiano
; Mazotti, Adriano César
; Molero, Camila Schimite
; Mendes, Carolina Borghi
; Mello, Denise Fernandes de
; Marques, Emilia de Mendonça Rosa
; Talamoni, Jandira Liria Biscalquini
; Silva, José Humberto Dias da
et al. (Coleção PROGRAD (UNESP), 2011) [Livro]
-
Núcleos de Ensino da Unesp: artigos 2008
Pinho, Sheila Zambello de; Oliveira, José Brás Barreto de
; Pontes, Sueli Rodrigues
; Almeida, Djanira Soares de Oliveira e
; Godoy, Kathya Maria Ayres de
; Rosa, Claudia de Souza
; Nunes, Julianus Araújo
; Salvador, Sérgio Azevedo
; David, Célia Maria
; Vilche Peña, Angel Fidel
et al. (Coleção PROGRAD (UNESP), 2011) [Livro]
-
Ser e tornar-se professor: práticas educativas no contexto escolar
Pinho, Sheila Zambello de; Spazziani, Maria de Lourdes
; Mendonça, Sueli Guadelupe de Lima
; Rubo, Elisabete Aparecida Andrello
; Villarreal, Dalva Maria de Oliveira
; Duarte, Camila
; Okamoto, Mary Yoko
; Souza, Thais R.
; Garms, Gilza Maria Zauhy
; Marin, Fátima Aparecida Dias Gomes
et al. (Coleção PROGRAD (UNESP), 2012) [Livro]