Study of thresholds to burning in surface grinding process

Electromechanical impedance (EMI) technique as alternative to monitor workpiece surface damages after the grinding operation

“…As previously mentioned, the grinding contact area between the workpiece material and abrasive wheel increases with depth of cut (specific grain cutting depth) and causes the both normal and tangential components cutting forces to be increased, thereby requiring more power to form chip [20]. Also, Aguiar et al [21] reported during their investigation of the threshold to identify workpiece burning in peripheral grinding of a SAE 045 steel conventional aluminum oxide abrasive wheel that once the surface burning occurs, a metallic particle adhesion growth in the abrasive grains of the grinding wheel will be intensified, thereby increasing cutting forces and consequently the grinding power, as well as adversely affecting the surface finish of the machined component. In case of hardened steels, such as SAE 52100 steel grade that is employed in bearing components manufacturing, Malkin and Guo [3] reported that surface burning generated in grinding operation can reduce the workpiece material limit of fatigue strength and consequently its service life.…”

Evaluation of neural models applied to the estimation of tool wear in the grinding of advanced ceramics

“…A system to establish thresholds to burn in surface grinding was proposed by Aguiar, Dotto, and Bianchi (2005). According to the authors, the burn occurrence is related to the increase in the grinding wheel wear, as there is a trend of growth of metallic particle adhesion in the abrasive grains, increasing the grinding forces.…”

The use of cylindrical grinding to produce a martensitic structure on the surface of 4340 Steel

“…Malkin (1989), apud , affirmed that a bluish coloration on the surface of the part characterizes the visible burning in steels: "This coloration generally is removed by the 'sparkout' period at the end of the grinding cycle, but this effect is cosmetic, and the absence of coloration on the ground surface does not mean necessarily that the burning of the part did not occur". Aguiar et al (2005) classified grinding burn in four categories: non-burn, slight burn, medium burn and severe burn, and established that it can be detected visually, according to the set of patterns shown on Fig. 2.…”