| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of welding fittings on steel by which the fittings are welded so that the steel especially a wide flange beam is difficult to generate deformation (camber). SOLUTION: This method is a method for performing the resistance welding of the fittings 6 on flange parts 1b of the wide flange beam 1 on which a non-conducting coating film 10 is formed and, by making a through-hole 1c on the flange parts 1b, bringing an electrode 11A on one side into contact with the opening edge 1e on one side of the through-hole 1c, bringing the fittings 6 to which the electrode 11B on the other side is connected into contact with the opening edge 1f on the other side of the through-hole 1c on which the non-conducting coating film is formed and energizing while pressurizing the fittings 6 to the opening edge 1f on the other side of the through-hole 1c, the resistance welding of the fittings 6 on the flange parts 1b of the wide flange beam 1 is performed. Because only spot-like heat is generated instantaneously in the resistance welding, the fittings 6 can be welded so that the wide flange beam 1 is difficult to generate the deformation (camber). COPYRIGHT: (C)2008,JPO&INPIT |
