A steady state control algorithm has been developed. The algorithm is based on steady-state process models, established and used to provide algebraic control models. The control model can be applied for on-line computation of new levels of aluminium turning process control variables required to compensate for detected errors in the controlled variables. Workability of the developed control algorithm and its performance are evaluated by computer simulation. Although the control methodology is developed for an aluminium turning process, it is general and can be applied to any machining process.