Inventors:
Charles L. Wu - Bloomfield Hills MI
Roger K. Haboush - Lathrup Village MI
Assignee:
Ford Motor Company - Dearborn MI
International Classification:
G06F 1546
G05B 1304
Abstract:
A method of using a mathematical model to adaptively control surface roughness when machining a series of workpieces or segments by: (a) linearizing a geometrical surface roughness model; (b) initializing said model essentially as a function of feed; and (c) subjecting the initialized model to computerized estimation based on roughness and feed values taken from the last machined workpiece, thereby to determine the largest allowable feed for attaining a desired surface roughness in subsequently machined workpieces or segments of the series. The mathematical model is an algorithm of the form R=[1262. 79]f. sup. 2 /r. The model is linearized and initialized to give the form R=. beta. sub. 1 s. sub. R f+. beta. sub. 2 R. sub. max where R is the actual roughness and R. sub. max is desired roughness, f is actual feed,. beta. sub. 1 and. beta. sub.