PVD COATING / THIN FILM
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Physical Vapor Deposition – also known as PVD Coating or Thin Film – refers to a variety of deposition techniques where solid metal vaporizes in a high vacuum environment. Then it deposits on electrically conductive materials as a pure metal or alloy coating.
Since this is a “line of sight” process that transfers the coating material on a single atom or molecule level, it provides extremely pure and high performance coatings. So for many applications, PVD is much more preferable than electroplating. To this end, PVD coating is great for those products requiring thin film for a mechanical, optical, chemical or electronic function.
Additionally, these thin film finishes are also highly resistant to tarnishing. For this reason, they are perfect for a wide range of applications needing colors that do not fade. When applied to a base metal, PVD coatings provide hard, wear-resistant surfaces that don’t interact with the materials they cover. Therefore, it dramatically reduces friction and prolongs the life of the part.
Similarly, this is an environmentally friendly process that greatly reduces the amount of toxic substances disposed of when compared with more conventional types of coating involving fluid precursors and chemical reactions.
BENEFITS OF PVD COATING
- Reduction of friction
- Improved lubricity
- Abrasion & wear resistance
- Improved speeds & feeds on cutting tools
- Better release of plastic parts
- Less galling & die polishing
- Reduces downtime