The oblique cutting processes with different tool-chip friction coefficients were simulated by using explicit finite element code. The chip flow characteristics on the tool rake face,the mechanism and the effects of tool-chip friction on the chip flow direction and crimp radius were investigated. It is shown that,in the oblique cutting,the chip outflows with an inclined angle from the cutting edge and bends laterally on the tool rake face,thus,the angle between the chip flow velocity and the normal of cutti...