DETECTION OF UNCUT REGIONS IN POCKET MACHINING

ABSTRACT Upon realization of the fact that uncut regions exist if there is an intersection between a previous tool envelope and a current tool envelope, this study is initiated. As a key concept, the Tool envelope Loop Entity (TLE) is devised to treat every trajectory made by the tool radius as an ordinary offset loop. The TLE concept enables the offset curve generation method to be extended further as a distinctive method in which uncut region detection is done through an identical way of offsetting. To ensure the method works, a prototype system is implemented and evaluated with the tool path generation obviating uncut regions. The result verifies that the proposed method fulfils technological requirements for uncut free pocketing.