| United States Patent | 5,847,359 |
| Sugahara, et. al. | Dec. 8, 1998 |
Abstract
A laser beam machining system which can select optimum work conditions at a restart point and restart cutting after a temporary emergency stop. In the machining system, a work command section receives a command based on a work program from a program analysis section and outputs a work command for operating a laser oscillator and a laser beam machine. The work command section also receives a restart command for releasing an emergency stop state from a restart command section, and generates and outputs a corrected work command for work restart in conjunction with the restart command section.
| Inventors: | Sugahara; Masayuki (Aichi, JP); Mori; Toshihiro (Aichi, JP). |
| Assignee: | Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP). |
| Appl. No.: | 589,877 |
| Filed: | Jan. 23, 1996 |
| Jan. 31, 1995 [JP] | 7-013809 |
| Intl. Cl. : | B23K 26/00 |
| Current U.S. Cl.: | 219/121.72; 219/121.67; 219/121.78; 364/474.08 |
| Field of Search: | 219/121.6, 121.61, 121.62, 121.67, 121.72, 121.78, 121.84, 121.85; 364/474.08 |
| 5,293,024 | Mar., 1994 | Sugahara et al. | 219/121.67 |
| 5,585,018 | Dec., 1996 | Kanaoka et al. | 219/121.72 |
| 0633092 | Jan., 1995 | EP | |
| 3-106583 | May, 1991 | JP | |
| 3-254380 | Nov., 1991 | JP | |
| 6-202722 | Jul., 1994 | JP |