PASSIVATION
Passivation, to render chemically passive, is the last step in the finishing process of precision stainless machined parts. It maximizes the ability of stainless steel parts to resist corrosion. Passivation removes surface contamination from particles of free irons that may have adhered to the part during the machining process. If these iron contaminants aren’t removed, they may cause discoloration, rusting, or pitting.
Passivation also forms a protective, non-reactive oxide layer that makes the material rust resistant. The formation of the oxide layer on stainless steel is a natural process; however, the passivation of stainless steel speeds up this natural process and helps the oxide layer to develop faster and thicker than if left to occur naturally.
SWISS PRECISION MACHINING CASE STUDIES

CNC Screw Machining Plastic Flush Plug

CNC Swiss Screw Machining Stainless Steel Adapter

Stainless Steel Gimbal Lock Plate

Stainless Steel Rotation Disk