Development of tool selection process for milling of pocket features

Abstract

In modern production, three-dimensional modeling of workpieces has become a logical stage in the development of the technological process. Engineering analysis, process design, CNC mill tool path design, final inspection of products and other aspects are done basing on 3D models and have become the norm in the manufacturing industry. This research aimed at deriving mathematical tools which could be used in the process of CAM software development and modernization. Structural and process related elements can be automatically recognized on the basis of a 3D model. English literature refers to such elements as features. A set of parameters necessary for the description of a pocket design feature characteristics was reviewed. Available process solutions for CNC machining of said feature were analyzed. Special attention was given to selection of the roughing and finishing mills, as well as roughing and finishing cut strategy development. A tool parameter selection algorithm was developed for CNC milling of a pocket feature.