Patent ID: 8255076

Claim:
A computer aided manufacturing system for converting design data designed by a computer aided design apparatus to manufacturing data used in a working machine for machining a workpiece, the computer aided manufacturing system comprising a processor to: load the design data; extract geometrical shapes and attribute information of features based on the loaded design data, the features being one of hole elements included in one of machining features, the attribute information including at least information which indicates whether each of opening directions of the geometrical shapes is reversible or not; obtain dependence relationships among the features from the extracted geometrical shapes and attribute information of the features; obtain each of the machining features into which the features corresponding to each of the machining features are integrated based on the dependence relationships among the features; and obtain each of machining procedures corresponding to the integrated machining features, wherein the design data is converted to the manufacturing data in accordance with each of the obtained machining procedures, the manufacturing data being used for machining the workpiece.