PVD Hard Nitride Coatings on Industrial Parts
Application:
These coatings can be applied on different types of sub-layers. These items include: types of extrusion molds, deep drawing, rolling, wire drawing, punching, forging, diecasting and plastic injection, drilling tools, gearing, finger milling, punching, internal threading , plastic cutting, paper and plastic shredding, medical cutting and surgery and cutting of wood, piston ring, gauges, pins and other parts under abrasion can be applied. Among the general properties of this category of coatings, we can mention the increase of hardness, reduction of friction coefficient and surface roughness, very good adhesion to the substrate and improvement of corrosion resistance of the coating.
Product Introduction:
Machining has been the main process of shaping engineering parts throughout history. For each machining process, durable and long-lasting, efficient and reliable tools are needed. Cutting tools are one of the main parts in the machining process.
In the competitive environment of the industry, tools should move towards increased life, increased quality and better efficiency, and less need for lubrication. In this regard, there are fundamental challenges: for example, in order to prevent the breakage of a tool and reduce abrasion, it is necessary for the tool to be flexible, while flexibility is the opposite of hardness. Usually, a material is either very hard or has high flexibility, and having these two properties at the same time is a contradictory desire. The solution to this problem is to protect tools made of flexible materials (such as steel) by using hard coatings. As a result, you can have a tool that is resistant to breakage while also taking care of it against abrasion and mild adhesions.
One of the methods of applying coatings with high hardness and in nanometer and micrometer thicknesses is the Arc-PVD method. In this method, the voltage generated by the power supply causes an electric arc between the anode and the cathode.
The arc current is concentrated on a very small surface of the cathode (target) and creates a very high current density, which causes the cathode to evaporate and turn it into ionized vapor. Ionized steam reacts with gases entering the chamber (oxygen, nitrogen, etc.) and deposits a thin ceramic layer on the surface of the target piece.
Technical Specifications:
Due to the low chemical reactivity of these coatings with the work pieces, the tool is protected against welding and creating a sticky surface. The result of all these effects is that cutting with a coated tool increases the cutting speed and increases the life of the cutting parts. Hard protective coatings are usually nitrides of intermediate metals, which have high hardness, high resistance to abrasion and oxidation.
Advantages:
High production number
International Standards or Permission:
* ISO 26443
* ISO 14577
Company | |
---|---|
Type | This product is a final B2B consumer product. |