Evaluating Multiple Feature-Based Machining Methods Using an Activity-Based Cost Analysis Model

For a designed part, if different sets of features are used for machining, the manufacturing costs may vary. In this research, the different manufacturing costs for the different feature-based machining methods are analyzed using an activity-based cost model. First, the activities required for machining a set of features are analyzed. Second, the activity-related cost for each activity is evaluated based on a consistent time scale. The summation of costs of the activities equals the manufacturing cost for producing the part. Finally, the different manufacturing costs corresponding to the multiple feature-based machining methods are evaluated. The set of features that can be machined with the lowest manufacturing cost is considered a good way to produce the part. Example parts are tested and discussed.