Cladding
Cladding is applying a corrosion- or wear-resistant layer onto a cheaper base metal by pressure, heat, or welding. This improves surface resistance and service life of the material.
Physical-Chemical Mechanism of Action
Plating is the process of applying a thin layer of a hard or corrosion-resistant material onto a cheaper base metal. This is done by pressure (like in cladding), heat (like in diffusion bonding), or welding (like in weld cladding). The process changes the surface properties of the base metal by covering it with a special material.
Metallurgical Relevance & Risks in Welding
Plating improves the service life and chemical resistance of the material. It protects against corrosion and wear, which is especially important in weld cladding. However, incorrect cladding parameters or inadequate preparation can lead to failed processes, such as incomplete layer formation or distortion in the base metal.
Shop Practice & Instructions
For cladding, it is critical that the base metal is clean and free of defects. The pressure, heat, or welding parameters must be precisely followed. In weld cladding, the voltage and time must be chosen correctly to achieve a uniform layer. When in doubt, follow the manufacturer's instructions or consult an experienced cladding operator.