Back to results
US 5,181,177 AGranted
Method and apparatus for non-contact machining with dynamic feedback control
AssigneeRaycon Corporation
InventorsRobert D. Bond, Thomas E. Denham
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeRaycon Corporation
InventorsRobert D. Bond, Thomas E. Denham
Estimating the term…
Non-contact machining of workpieces on a mass production basis is accomplished with dynamic and adaptive feedback control to achieve accurate machining of a first and second feature to a specified combined size. The first feature is machined in the workpiece and measured to obtain a value which represents the size. A proces parameter is adjusted in accordance with the measurement value based on a stored transfer function so that the second feature will be machined with an extrapolated size such that the combined size will be within the acceptability limit. Additionally, the combined measurement values of successive workpieces is analyzed to determine the trend of change of the values with respect to the specified size and the parameter is adjusted to machine the first feature and the combined features more accurately.
A method of non-contact machining a workpiece to provide a plurality of features thereof with a specified combined size within predetermined tolerances, the machining being determined by plural parameters at least one of which is adjustable, the method comprising the steps of:
An assembly for non-contact machining to provide a plurality of features with a specified combined size in a workpiece, said assembly comprising:
Dependencies are inferred from the claim text.