Explosion welding

Explosive cladding is a busting industrial process, in which, using high explosives, an impression of an object in a plane surface is created or two different types of metals are connected flat to one another. This fine and very fine structures, eg in copper plates feasible or compounds of otherwise difficult displayable material combinations are possible.

Imaging method

The imaged object (eg an oak leaf ) is placed here on a deformable surface ( eg, copper, ferritic steel, bronze, nickel, etc. ). This is followed by a flat, non-deformable support ( such as glass). In the latter the explosive is applied as a uniform, two-dimensional layer. The type of explosive ( detonation velocity, work capacity ) and the degree of confinement depends on the imaging material, the object properties and the accuracy of representation. Most explosives with detonation velocities of 2000 to 5000 m / s are used. The ignition of the explosive charge is carried out either from the center to the object ( dimensionally accurate mapping of the horizontal dimension) or from the edge of at least two pages ( accurate picture of the bottom structure). In addition to some special applications in electron microscopy, this method is only rarely for making jewelry or fitting pieces in mechanical engineering to application.

Sandwich method

The sandwich method is a method for the production of sandwich - metal plates or slightly curved panels with surfaces similar to the image process function. Especially expensive corrosion and / or heat-resistant materials (sheet metal ) are applied to one side or both sides in a thin layer on thicker cheaper carbon steels. Advantage is the physical strength of the bond Plattierungspartner without structural change and strong metallurgical mixing and heat-affected zone, as occurs for example when plating by build. In addition, otherwise difficult to be joined metals, such as aluminum and steel, can be connected safely. Used mainly for the production of raw material for the plant and equipment. The up burst plating resists the chemical attack of corrosion and / or the action of heat, the base material carries the mechanical loads.