Surface Finishing Tutorial

#143 Industrial Nickel Plating・Nickel Electroforming

Category : Electroplating

December21, 2012

The standards define industrial nickel plating and nickel electroforming for the purposes of corrosion reistance, wear resistance, and overlay build-up on steel and nonferrous metals.

(1) Classification and applications

[Table 1] shows the classification and applications of industrial nickel plating and nickel electroforming.

[Table 1] Classification and applications of industrial Ni plating and Ni electroforming

Classification by machining process	Application examples
As plated	Corrosion resistive purpose, Food production equipment, Glass production rollers, etc.
Post plating machining	Wear resistive purpose, cylinders, shafts, etc.
As electroformed	Foil, Outer blades of electric razors, etc.
Post electroformed machining	Electroformed molds, Build-up plating on shafts, etc.

※	●As plated, as electroformed No machining process applied after plated or electroformed. ●Machined Machining processes by mechanical means are applied on plated surfaces or electroformed surfaces.

(2) Quality

Appearances, surface roughness, thickness, hardness, wear resistance, and other required qualities of plating and electroforming are to be determined by the agreements of the involved parties.

(3) Adhesion characteristics

Tested by grinding test method, chisel driving test method, thermal test method, or tensile test method.

(4) Symbols and names of plating and electroforming

●Ep-Fe*, M/E-Ni, M, 500±10/1G, 2G（1.6 μm Ra）

Industrial nickel plating on steel surface: 500±10μm, base metal and plating are to be ground finished to a surface roughness of 1.6μm Ra.
M: machining on base metal, E-Ni: industrial nickel plating, 1G: machining before plating, 2G: grinding after plating, Ra: Center line average roughness.

※	Carbon steel for mechanical structure S45C This can be abbreviated as follows. Ep-Fe*, /E-Ni, 500±10/G, （1.6μm Ra）

●Ef/Ni, b, 100±10/

Ef: Electroforming, Ni: Nickel, b: Gloss type electroforming

●Ep-AL*/Ni, 100±10, ICr, 10/G, （0.4μmRa）

Ep: Electroplating, AL: Aluminum alloy A5052S, Ni: Nickel plating 100±10μm, ICr,10: 10μm Industrial chrome plating, /G: Grinding finish after plating

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