Study on micro-interacting mechanism modeling in grinding process and ground surface roughness prediction

Surface roughness and thermo-mechanical force modeling for grinding operations with regular and circumferentially grooved wheels

“…As Jiang et al ( 2013) claimed there should be a cut-off height to determine these active grits. Cut-off height is identified as 69 m by volume density and Jiang's height analysis on wheel surface.…”

“…3a, dashed area represents the bond material and h cuz,max is the maximum penetration depth of a grain and h cu,max is the maximum penetration depth from all over the grains. By using the h cuz,max − h cu,max − (d max − y) equation presented by Jiang and Ge (2008) and Jiang et al (2013), cut-off distance can be identified to determine number of active abrasive grains per 1 mm 2 .…”

Elucidating Grinding Mechanism by Theoretical and Experimental Investigations

“…This model is useful for investigating the influences of process parameters and the grinding wheel topography on the material removal process. Jiang et al [21] developed a numerical model of grinding mechanism that describes the micro-interaction situations in the contact zone between abrasive grains and workpiece surface where the contact zone was divided into four categories, namely, no-contact, sliding, plowing, and cutting grains. In this model, interaction between grain and workpiece surface was determined by two parameters, namely the grain penetration depth and the grain diameter.…”

Quantitative impacts of regenerative vibration and abrasive wheel eccentricity on surface grinding dynamic performance

“…In addition, the orientation of the abrasive grit (e.g. grit shape orthogonal to the feed direction) has an influence on chip formation behaviour [2,3,9,12]. During forced-excited grinding, the dynamic influence of eccentrically rotated grinding wheel is significant in the abrasive grit-material contact zone and cannot be neglected in the analytical model of grinding force.…”

“…So far, geometries of abrasive grits are always assumed to be either pyramid cones with designated angles or simple sphere or ellipsoid [4,9,13]. While they are not same as aforementioned ideal standard geometries in actual grinding process, effective grits penetrating-in material can be measured with the development of test technology and be dimensioned accurately as geometries of pyramid or truncated tetrahedron with defined angle in different interaction interfaces between abrasive grits and workpiece, including depicted top opening angle, apex angle in feed direction, negative rake angle, wedge angle etc [17,18,19].…”