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Surface Improvements & Finishing

A metal surface treatment is any process that affects, alters, or adds to the surface of a metal part. These treatments seek to perform a variety of functions; though corrosion resistance is the most commonly used, each type serves a different purpose.

One of the mechanical process AG Mechanical are able to offer is metal finishing processes. These processes fall into one of three general categories: mechanical finishes, such as grinding and honing; metal heat treatment, which includes processes such as annealing, for strength; and metal surface treatment.

Coating and Plating

Coating and plating processes is either alter the surface of metal parts at a molecular level or to fully cover it. The goal of these processes is to prevent corrosion. Some of the coating and plating services include:

  • Anodizing
  • Galvanizing
  • Phosphatizing
  • Enameling
  • Blackening
  • Electroplating, electropolishing, and electric dip-coat painting
  • Chrome and nickel plating
  • Plasma coating
  • CVD and PVD coating

Additional Surface Treatments

There are a range of mechanical finishing treatments that, when performed in advance of certain metal surface treatments, can also be considered metal surface treatments in and of themselves. For example, certain plating processes lead to better results if the part has a particular surface finish; likewise, paint will not adhere properly to a part that is dirty or greasy from the manufacturing process. Additional surface treatments includes:

  • Sand blasting
  • Roto finishing
  • Barrel finishing
  • Parts cleaning
  • Degreasing
  • Passivation
  • Lapping
  • Build-up welding