ANALYSIS OF ROUGHNESS IN SYNTHETIC DIAMONDS USED IN THE SINGLE POINT DRESSING OF ALUMINUM OXIDE GRINDING WHEELS

Arminio Frech Junior¹; Paulo Roberto de Aguiar¹; Hamilton José de Mello¹; Eduardo Carlos Bianchi¹

¹ UNESP- Faculty of Engineering Bauru -FEB

doi:10.20906/CPS/COB-2015-0123

Resumo

The dressing can be defined as the operation of the grinding tool grinding, the grinding wheel. In this study, we attempted to observe the performance of synthetic diamonds used in dressing single point with different dressing overlap ratio (Ud) to determine which one provides major and minor roughness. The methodology employed was to dress a grinding wheel aluminum oxide to 20, 70, and 120 paces and grind a piece of steel. The initial Ud was equal to 1. After this, the roughness of the steel was calculated. Finishing this circle, a new test was made, but with a different Ud = 5. The roughness was higher for the ratio equal to 1, with presenting bigger roughness for 20 paces: 0.49um for Ud = 1 and 0.44um for Ud = 5; and less roughness for 120 paces: 0.27um for Ud = 1 and 0.18um for Ud = 5. Thus, using the dressing overlap ratio of 5 provides better roughness.

Palavras-chave: grinding; dressing; wear dresser