This paper describes a method of adaptive control optimization develop
ed for circular sawing to produce a specified surface finish quality i
n a production environment. It is possible to develop the relationship
between the workpiece feed-rate and acoustic emission (AE) count-rate
, which is used for the automatic control of workpiece feed-rate, by a
single cutting test. This is done for the workpiece immediately befor
e operation by adaptive control optimization, with the workpiece feed-
rate and AE count-rate chosen as control variable and process variable
, respectively. A multiple-regression equation based on AE count-rate
and specific gravity for softwoods is effective for adaptive control o
ptimization of circular sawing in order to produce the required surfac
e finish quality.