Electroplating processes allow the selective deposition of very thin layers within tight manufacturing tolerances.
The usually high internal hardness and mechanical wear resistance of electroplated layers is advantageous
in many applications. Since even thin layers have mostly a low porosity, these deposits serve also as protection against corrosion.
The type of deposit, its chemical and physical properties as well as layer sequences and thickness are defined by the application’s mechanical and electrical requirements. Electroplated deposits consist mostly of pure gold, hard gold, silver, palladium-nickel, copper, nickel and nickel-phosphorus. Tin and tin-lead can be applied in strip form also by hot-dipping.
Pre-stamped strips are selectively electro-plated using immersion, strip and spot-plating or by the process of brush-plating. Stamping combs or discrete stamped parts are coated completely or selectively by immersion electroplating or all-over in bulk by barrel plating.