Abstract: The invention relates to a machine for butting two metal bands (M1, M2) and a method for implementing such a machine. According to the invention, two successive bands (M1, M2) are welded according to either one of at least two different welding modes, for example flash butt welding and laser welding. To this effect, two clamping jaw assemblies are available, suitable respectively to each welding mode and, when changing welding mode, the first jaw assembly (2, 3, 2′, 3′) used previously for welding is removed from the machine (S) and replaced with the second jaw assembly (20, 30, 20′, 30′) suitable to the second welding mode. During this operation, the jaws remain spaced apart so that replacement can take place as the first band unwinds to an end, before the running has stopped.

Abstract: The invention relates to a machine for butting two metal bands (M1, M2) and a method for implementing such a machine.

Abstract: A splicing machine for connecting metallic bands including at least three toolings determining successively the cutting profile of both edges (m1, m2) to be connected, the welding of both edges on to one another and the flattening of the welded matter in excess. The machine includes a tool carriage (3) mounted to slide parallel to the running direction of the bands (M1, M2) on which are mounted to slide, perpendicular to the running direction, at least two supporting chassis (41, 51), each for one of the connecting toolings (4,5), a motor and a worm (32) for positioning either connecting tooling (4,5) in a common working position, by sliding the tool carriage (3) and apparatus to control the transversal sliding motion of the corresponding tooling for the actuation of the latter.