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Title: Apparatus and method for forming a workpiece surface into a non-rotationally symmetric shape

A turning machine includes a controller for generating both aspherical and non-symmetrical shape components defining the predetermined shape, and a controller for controlling a spindle and a positionable cutting blade to thereby form a predetermined non-rotationally symmetric shape in a workpiece surface. The apparatus includes a rotatable spindle for rotatably mounting the workpiece about an axis, a spindle encoder for sensing an angular position of the rotating workpiece, the cutting blade, and radial and transverse positioners for relatively positioning the cutting blade and workpiece along respective radial and transverse directions. The controller cooperates with a fast transverse positioner for positioning the cutting blade in predetermined varying transverse positions during a revolution of the workpiece.
 [1];  [1];  [1];  [2]
  1. (Raleigh, NC)
  2. (Cary, NC)
Issue Date:
OSTI Identifier:
North Carolina State University (Raleigh, NC) OSTI
Patent Number(s):
US 5467675
Application Number:
Contract Number:
Country of Publication:
United States
apparatus; method; forming; workpiece; surface; non-rotationally; symmetric; shape; machine; controller; generating; aspherical; non-symmetrical; components; defining; predetermined; controlling; spindle; positionable; cutting; blade; form; rotatable; rotatably; mounting; axis; encoder; sensing; angular; position; rotating; radial; transverse; positioners; relatively; positioning; respective; directions; cooperates; fast; positioner; varying; positions; revolution; workpiece surface; angular position; rotatable spindle; cutting blade; components defining; predetermined shape; rotationally symmetric; shape components; /82/