A GENERALIZED MULTIPASS MACHINING MODEL FOR MACHINING PARAMETER SELECTION IN TURNING

A machining parameter selection model has been developed using multi-pass turning operation as a general type. An approximation optimization solution approach has been defined for this machining model. This model is a constrained model with the objective of achieving minimum cost. Depth-of-cut and number-of-pass are considered as variables in the model. All parameters, including the number-of-passes, cutting speed, feed rate and depth-of-cut for each pass, reach optimal simultaneously in one stage. The performance of this machining parameter optimization model is examined using a example, and the results are compared with current publications that provide same input data.