Plating, a manufacturing process that coats a
substrate with a thin layer of metal, has become an increasingly popular trend in
the metal industry due to its various benefits. The plating process changes the
physical, mechanical and chemical properties of a metallic device to help
strengthen the plated component.
The primary purpose of plating is to extend a metal’s lifetime by protecting it from the elements of nature that could lead to to corrosion. Ultimately, without plating, a metal device could fail due to its affliction from natural elements.
There are multiple plating techniques, including electro-plating and electro-less plating. One can gather that electro-plating requires an electric current in its process, whereas electro-less plating does not.
During electro-plating, a current is applied to the component, resulting in a shift of the chemical composition, which provides a firm and resistant coating to the surface. Electro-plating sometimes requires multiple applications depending on desired thickness of the coat, and must be carefully conducted in clean conditions.
Electro-less plating is a simpler autocatalytic chemical process, in which the component is treated with chemicals to remove oils and other corrosive elements and is then activated with a proprietary solution.
Regardless of the technique used, the benefits of plating are abundant. They include:
- Forming a protective barrier
- Enhancing resistance to corrosion over time
- Creating appearance and decorative appeal
- Increasing magnetism and superior solderability
- Enhancing strength
- Conducting electricity
- Promoting adhesion
- Reducing friction
- Altering conductivity
- Enhancing paint adhesion
- Absorbing excess hydrogen
- Resisting heat
- Preventing tarnishing
