Abstract: A method of cladding an outer tube (1) with an inner tube (2), wherein the inner tube is made of a corrosion-resistant material, for instance. The inventive is characterized by placing a number of explosive charges (3) in mutually spaced arrangement in the inner tube (2), in contact with or essentially in contact with the inner surface of the inner tube; filling the inner tube with a pressure-transmitting medium (4), preferably water; and detonating all explosive charges (3) simultaneously, so as to obtain a local metallurgical bond (6) at the regions of the explosive charges and so as to cause the inner tube (2) to expand into abutment with the outer tube (1).

Abstract: An explosive composition comprises one or several self-detonating explosives, such as PETN, HMX, TNT or RDX, desensitized by wax or water and one or several inert materials. The invention is characterized in that the inert material or a part thereof consists of a rubber of the type silicone rubber or latex rubber, which inert material constitutes matrix or binding agent. The components after being mixed together constitute a composition, which can be cast, extruded or rolled-out.

Abstract: An explosion welding method in which plating material is explosion welded to a base material with the aid of a reflected percussion wave generated by a detonating charge.

Abstract: When working material with the aid of shock-wave generating energy sources, the problem of tool fatigue occurs.This problem is reduced to a great extent by means of the inventive method, which prevents the occurrence of reflected tensile-force waves. This is achieved by permitting the pressure wave to pass into contact with porous material applied to the tool material, so that wave energy will be consumed by interference and heat generation in the porous material.

Abstract: The invention relates to a method of producing explosion-welded joints between the pipe or pipe lines. By carefully evaluating and testing the configuration of the ends of the pipes to be joined and also the functioning of the charge system, together with a system for encapsulating the charge and for determining the position of the charge during a welding sequence, it has been possible to provide a practical and reproduceable system which escapes the drawbacks of partial and poor weld bonds, cold-work hardening of the pipe material, and surface damage encountered with known systems of this kind. The method has been applied and tested on ferritic stainless material, so-called Duplex material, and on all carbon steel grades used in the production of pipe lines.

Abstract: A method of explosion welding magnesium-alloyed aluminium to high strength material.

Abstract: A charging system for seam welding two or more workpieces by means of explosion welding, comprising an explosive charge and an inert impulse-transmitting body located between the explosive charge and the workpiece nearest the charge. The invention is characterized in that the surface (11) of the inert body (2) facing the workpiece is so configured in a plane extending at right angles to the longitudinal extension of the ultimate weld seam that the angle .alpha. between the surface (11) and the workpiece (3) varies from the center line (C--C) of the inert body (2) perpendicularly to the surface of the workpiece and outwardly from the center line.

Abstract: A method of explosion welding very thin plastic foil to a thicker base material. By fastening a soft material of low acoustic velocity in position on the metal foil prior to carrying out a welding operation, the pressure differences which prevail in the pressure wave incident on the metal foil are equalized in a manner to maintain a uniform pressure wave during the welding sequence. The inventive method enables the explosion welding of thin metal layers having a thickness as low as some few microns.

Abstract: The invention relates to a method for welding different materials. An adapted quantity of additive material in the form of particles (3) is accelerated with the aid of an explosive charge (1) and a propulsion element (2) to a high velocity down into a joint space (8), where the particles collide with the workpieces (4, 5) and bond thereto and to themselves.