HOME > Our techinical skill > Surface Treatment Basic Knowledge：What is PVD Processing ?

Basic Knowledge of Surface Treatment

ContentsList

  • Basic Knowledge of Surface Treatment
  • Plating preprocessing
  • Plating
  • Conversion Treatment
  • Conversion Treatment
  • Conversion Treatment
  • Conversion Treatment
  • Resin Plating
  • Technology to Improve Cr Throwing Ability
  • Our techinical skill

Products FAQ

Inquiry

Product Search

PVD Processing is ;

PVD processing is one of the surface treatment techniques and the process creates thin layer made of ceramic on a product surface.

By having thin functional film, a metal material can have functional properties such as anti-abrasion, galling resistance, improving sliding, anti-adhesion, anti-heating, corrosion resistance, and so on.

This technology can be broadly applied to field of cutting instrument, dies, automotive parts, watches, medical instruments and others.

Comparison of Various Surface Treatment Techniques

Process PVD* CVD* TD*
Principle Plasma Reaction Thermo Chemical Reaction Thermo Reactive Deposition and Diffusion
Kinds of Film TiN, TiCN, TiAlN, CrN, DLC and others TiN, TiC, TiCN,
Al2O3 and others		 VC
Process Temp. (℃) 200～600 700～1200 1000～1100
Dimension Accuracy ◎ △ △
Adhesion ○ ◎ ◎
Re-Treatment ◎ △ △
*
PVD：Physical Vapor Deposition
CVD：Chemical Vapor Deposition
TD：Toyota Diffusion Coating Process

Recently die processing is required to have such a accurate production in terms of product dimension. To have fine dimension accuracy, PVD processing with little deformation is the most suitable process to meet market's demands.
Compared to CVD and TD processing, PVD processing has merits below.

① Little dimension change before and after of the processing because temperature is kept low during the process.
② Additional functions can be added by having more complex nitriding as hardening treatment.
③ Re-use of dies can be done several times with the same treatment.