| 摘要 |
PROBLEM TO BE SOLVED: To form a working shape accurately reproduced with a given working shape at a sheet material. SOLUTION: When a working shape is externally given, a controller 36 obtains a moving locus of an axial center of a turning shaft of a working roller based on the working shape and a turning radius of the roller. Then, the controller 36 rotatably drives a working roller turning motor 25, working roller rotary motor 19, working roller feeding motor 28, tool horn rotary motor 12 and a tool horn feeding motor 16 based on the given working shape and obtained locus of the center of the shaft. |
