Improved method for joining a tube and a plate

Details Improved method for joining a tube and a plate Improved method for joining a tube and a plate

B - Operations, Transporting

21

D

B21D 51/00 (2006.01)

Patent

CA 2204235

A method for joining a tube and a plate includes forming a short connection stub which is integral to the plate. The stub is imperforate and has a cylindrical stub surface around the stub circumference and for engaging the tube. The distal stub edge is spaced from the plate and defines a circle. A cylindrical tube has an interior tube surface, an exterior tube surface and a tube end. The tube end is placed in telescoped relationship to the stub and the stub thereby contacts only one of the tube surfaces, i.e., the interior surface or the exterior surface. The tube and stub overlap at a junction. A substantially uniform force is then applied radially around the stub surface and the stub, the edge and the tube are urged simultaneously radially inwardly or outwardly with respect to the axis.

Cette invention concerne une méthode d'assemblage d'un tube et d'une plaque qui comprend la formation d'un manchon à même la plaque. Le manchon est à paroi pleine et de section circulaire pour recevoir le tube par emboîtement. L'extrémité distale du manchon est éloignée de la plaque et définit un cercle. Le tube cylindrique présente une surface intérieure, une surface extérieure et un bout. Le bout du tube est aligné sur le manchon de manière à coulisser sur une seule des surfaces du manchon, soit la surface extérieure, soit la surface intérieure. Le tube et le manchon se chevauchent au point de jonction. Une force sensiblement uniforme est alors appliquée radialement autour du manchon et, en même temps, le bout du tube et le tube lui-même sont repoussés vers l'intérieur ou l'extérieur par rapport à leur axe longitudinal.

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