| 摘要 |
The object of the invention consists of a process through which containing metal structures are built and shaped, in one case using steel sheets pre-protected by paints, and made to be electrically conductive by adding aluminium powder, or other equivalent conductive metals having a fusion temperature which is equivalent to the one fusing the sheets to be welded, and whose boiling temperature is higher than their fusion one; in a second case using sheets pre-protected by a thin layer of zinc plating followed by an external film of acrylic resin; it also consists in resorting to the aid of anthropomorphic welding robots, at the end of whose mobile arm is placed the laser beam out put unit connected to the laser source by an optical fibre cable, and also in the fact that the welding is carried out on the internal not visible sides of the containing structures that are being built. |
