ACCESSIBILITY IN 5-AXIS MILLING ENVIRONMENT

Using algorithms from computer graphics, i.e. hidden line and surface removal algorithms, techniques have been constructed to derive the 3-a xis visible or millable set of a computer model from a given orientati on, or simulate and verify machining toolpaths. In the paper, an appro ach that reduces the accessibility problem of 5-axis milling using a f lat end tool to a 3-axis accessibility problem is discussed. Using thi s approach, global detection of possible gouging of other parts while a 5-axis flat endmill is in use is made feasible, and collisions can b e avoided.