WAY OF FINISHING ABRASIVE MACHINING OF HOLE WITH ELLIPTICAL SURFACE Russian patent published in 2003 - IPC

FIELD: machining of metals, grinding of parts with holes having curvilinear elliptical cross-sections. SUBSTANCE: machined part and grinding spindle with wheel are given rotation and relative longitudinal feed. Rotation axis of grinding spindle is set at angle α with rotation axis of machined part to secure template-free machining. Value of angle is established depending on major and minor semi-axes of machined elliptical surface of hole. Wheel with peripheral cutting surface is divided during dressing into two parts equal in height. Machining is carried out with circular feed of cutting-in around cross point of axes of part and wheel. EFFECT: widened technological capabilities of way, increased precision and quality of machining. 3 cl, 4 dwg