Transition from ploughing to cutting during machining with blunt tools

Analytical modeling and experimental validation of micro end-milling cutting forces considering edge radius and material strengthening effects

“…where θ f is the separation angle which is considered as 37.6° [22], ς is constant ranging from 1-2 [23], which is taken as 2 in the present work. r e is the edge radius of cutter.…”

Mechanical load distribution along the main cutting edges in drilling

“…The forces acting on the relief face have been modeled in a similar manner to Rubenstein (1990) and Connolly and Rubenstein (1968), which estimates the contact area (A c ) in orthogonal cutting to be a function of the relief angle ( ), the cutting edge radius (R e [mm]) and a critical rake angle (˛c) over which value plowing is believed to occur instead of cutting, according to Basuray et al (1977). For oblique cutting the influence of the inclination angle (i) on the contact length is also considered.…”

Numerical and experimental study of contact behavior in the tool-based micromachining of steel

“…18 With the ALE model, δ s under various machining conditions is determined from the spatial velocity analysis, δ sv and the frictional shear analysis, δ sf are equivalent to 58.5° which is close to previous findings elsewhere. [19][20][21] …”