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

Patent ·
OSTI ID:870160
 [1];  [1];  [2]
  1. Raleigh, NC
  2. Cary, NC
+ Show Author Affiliations

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.

DOE Contract Number:
78Y-XT910C
Assignee:
North Carolina State University (Raleigh, NC)
Patent Number(s):
US 5467675
Application Number:
08/393,890
OSTI ID:
870160
Country of Publication:
United States
Language:
English

References (6)

Design and testing of a fast tool servo for diamond turning journal July 1985
Application of a fast tool servo for diamond turning of nonrotationally symmetric surfaces journal October 1991
Tool Positioning for Noncircular Cutting with Lathe conference June 1986
Theoretical Tool Movement Required To Diamond Turn An Off-Axis Paraboloid On Axis conference December 1976
Description of off-axis conic surfaces for nonaxizymmetric surface generation conference August 1990
A New Micro-Cutting Device with High Stiffness and Resolution journal January 1990

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Related Subjects

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
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