METHOD OF DRILLING OPENINGS IN WORKPIECE OF CURVILINEAR SURFACE Russian patent published in 2002 - IPC

FIELD: mechanical engineering, machining, drilling openings for riveted joints when assembling panels of airplane units. SUBSTANCE: method includes imparting of relative motion to workpiece and tool providing position of the tool perpendicular to the workpiece surface in the center of the working opening. Subsequently the tool is imparted in rotary motion around its axis and fed along the axis. To provide drilling the openings in the surface of second rate of curvilinear the tool when mounting is imparted into rotation motion relative two additional axis located at an acute angle to each other and to the tool axis. All axis are crossed in the center of the working opening on the workpiece surface. EFFECT: improved method. 1 dwg