Metal cladding

Multilayered composite sheets and plates can be bonded in a single explosion, and cladding of both sides of a backing metal can be achieved simultaneously. When two sides are clad, the two prime or clad metals need not be of the same thickness nor of the same metal or alloy. 

The majority of explosion-clad metals are less expensive than the soHd metals that could be used instead of the clad systems. 

The industrially useful combinations of explosively clad metals that ate available in commercial sizes ate Hsted in Figure 7. The Hst does not include triclads or possible combinations not yet explored. The combinations that explosion cladding can provide ate virtually limidess (24). 

Fig. 7. Commercially available explosion-clad metal combinations.

Table 2. Shear Strengths of Explosively Clad Metals...

Cladding metal on carbon steel backers a b Shear strength, MPa... 

Explosion-bonded metals are produced by several manufacturers in the United States, Europe, and Japan. The chemical industry is the principal consumer of explosion-bonded metals which are used in the constmction of clad reaction vessels and heat-exchanger tube sheets for corrosion-resistant service. The primary market segments for explosion-bonded metals are for corrosion-resistant pressure vessels, tube sheets for heat exchangers, electrical transition joints, and stmctural transition joints. Total world markets for explosion-clad metals are estimated to fluctuate between 30 x 10 to 60 x 10 annually. 

Clad metals are candidates for galvanic corrosion along exposed edges. An example is copper/aluminum clad to aluminum. 

Laminated composite materials consist of layers of at least two different materials that are bonded together. Lamination is used to combine the best aspects of the constituent layers and bonding material in order to achieve a more useful material. The properties that can be emphasized by lamination are strength, stiffness, low weight, corrosion resistance, wear resistance, beauty or attractiveness, thermal insulation, acoustical insulation, etc. Such claims are best represented by the examples in the following paragraphs in which bimetals, clad metals, laminated glass, plastic-based laminates, and laminated fibrous composite materials are described. 

The concept of protection of one layer of material by another as described in the previous category. Clad Metals, has been extended in a rather unique way to automotive safety glass. Ordinary window glass... 

Zwie-licht, n, twilight, -metall, n. bimetal, clad metal. 

When clad metal is used, it is often specified as %-in. or A-in. minimum clad thickness. This is usually sufficient to allow proper weld connections. Care must be used in sealing all internal joints of clad material to prevent exposure of the base metal. 

Fusible Alloys, Clad Metal Industries, http //www.cladmetalindustries.com/Alloys.html... 

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