| 摘要 |
The laser light wavelength is 1.6-2.4 mu m. An Independent claim is included for the corresponding welding equipment. Preferred features: The wavelength is preferably 1.8-2.2 mu m. Two plastic workpieces are welded flatly together, laser light being directed at right angles to the interface. Workpieces are butt-jointed and welded together, laser light being directed towards the joint on both workpieces. The workpieces are clamped during welding, near the joint; at least one jaw transmitting laser light. The workpieces are alternatively unconfined during welding. The laser light is brought to the workpiece through an optical conductor (4), for spot welding. The light can be beamed over a larger, flat area where the weld is to be made. |
