| 摘要 |
PURPOSE:To finely finish the corner radius R of a bent part by bending a groove machined previously through laser beam in cooperation of a punch with a die. CONSTITUTION:One end of a work W to be bent is clamped to a clamp device 39. A bent line W1 to be bent is predetermined on the work W and this bent line W1 is positioned directly below a laser beam machining head 43. When bending is performed along the predetermined bent line W1 of the work W, the bent line WL is irradiated with laser beam LB to be grooved (marked), then, the work is bent along this groove WG in cooperation of the punch 23A with the die 25A. In this way, the bending R at the bent part of the work can be finished finely and bending accuracy can be improved. |
