| 摘要 |
PURPOSE:To obviate complicateness of a teaching operation by preparing an NC program so as to work a joining part, based on each radius of a main pipe and a branch pipe, and an angle formed by center axes of both of them. CONSTITUTION:A radius r1 of a main pipe 6A and a radius r2 of a branch pipe 6B, and an angle alpha formed by center axes of the main pipe 6A and the branch pipe 6B are inputted to an auxiliary computer for preparing an NC program. The computer prepares a cutting NC program of the main pipe 6A and the branch pipe 6B, and a three-dimensional laser beam machine executes prescribed cutting. Complicateness for preparing a working program for a two-dimensional laser beam machine is obviated, and it becomes unnecessary to add an attachment such as a rotary table, etc., to the three-dimensional laser beam machine. |
