The process by which a thin layer of metal is deposited by an electromechanical process is called:

The process by which a thin layer of metal is deposited by an electromechanical process is called:

• A. Galvanizing
• B. Electroplating
• C. Electropolishing
• D. Anodizing

Answer: (B)

Electroplating is the process where a thin layer of metal is deposited onto a surface by passing an electric current through an electrolyte. In this setup, the workpiece acts as the cathode and metal ions in the solution are reduced and deposited onto its surface as a coating. The thickness of that coating is controlled by the amount of current and the time the piece spends in the bath, along with the bath composition and temperature. This is different from galvanizing, which specifically coats with zinc, often by hot-dipping or electrogalvanizing; electropolishing, on the other hand, removes a thin layer to smooth the surface; and anodizing forms an oxide layer via oxidation rather than depositing metal.

Electroplating is the process where a thin layer of metal is deposited onto a surface by passing an electric current through an electrolyte. In this setup, the workpiece acts as the cathode and metal ions in the solution are reduced and deposited onto its surface as a coating. The thickness of that coating is controlled by the amount of current and the time the piece spends in the bath, along with the bath composition and temperature. This is different from galvanizing, which specifically coats with zinc, often by hot-dipping or electrogalvanizing; electropolishing, on the other hand, removes a thin layer to smooth the surface; and anodizing forms an oxide layer via oxidation rather than depositing metal.