| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem in which a conventional CAM device cannot automatically set a processing area and a tool axis angle minimizing a processing time for a product in a curved surface shape.SOLUTION: A quadrangular pattern of a processing area is generated using coordinate information on a product shape and a raw material shape, and a triangular processing area is generated for an uneven surface of a product. For a processing area generated through a difference operation between the raw material shape and a removal shape calculated through a difference operation on the product shape, a tool axis angle is so set that a tool does not interfere and a maximum plane is obtained. For other areas, a tool axis is so set that remainder margin standard is satisfied and the shortest tool path length is obtained, a processing time is calculated from the length of a tool path and processing conditions of the tool, and a combination of processing areas having the shortest processing time is calculated among combinations of processing areas determined by the raw material shape and product shape. |
