| 摘要 |
PROBLEM TO BE SOLVED: To machine even such a long tenon as exceeding a length of a tenon working cutter, under precutting work, without depending on posterior working, in a columnar material-precutting working machine. SOLUTION: A router working data for a lower tenon for cutting out a tenon cross section from a range of distances H0-H1 from a left end of a columnar material, by router working, is generated when a length H1 of the lower tenon exceeds a comparison value H0, so as to set, to the H0, the length of the lower tenon to be worked by a working unit. A range of distances H0-H1 from a distal end is cut in the columnar material by the router working, to bring a state formed with a lower tenon root portion. COPYRIGHT: (C)2010,JPO&INPIT
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