Tool design of fin-tube cutting-press shaping

The cutting-press shaping technique is a green technology for manufacturing some functional surfaces such as fin-tubes. The correct selecting and matching of the technological parameters and cutting tool angles are of critical to shape the fins. Based on experiments, design principles of the cutting tool are put forward, the influencing laws of the rake angle, relief angle, main deflection angle, blade obliquity of the major cutting edge and assistant deflection angle, assistant rake angle, assistant relief angle of the minor cutting edge on the fins forming are analyzed, and the reasonable angles selecting ranges are given, which are verified by the experiments.