DiamolithDLC Diamond-Like-Coatings provides a low friction coating with a high surface hardness along with a low friction coefficient under dry or deficient lubrication conditions. It is ideally suited for engines, machines and other mechanical assemblies with sliding and rolling movements. Diamolith provides a perfect surface finish without any post-treatment required. All of this makes it ideal for high precision injection molding tools as well as for decorative purposes, such as jewelry.
Our DLC is a plasma-assisted CVD (Chemical Vapor Deposition) process. Our process was designed to support the need for Green technology with respect to educts, process and products
We provide our Diamolith DLC coating with a thickness of 3 to 5 µm with a treatment temperature between 200 to 300 C. When applied to finished parts it increases surface hardness, decreases mechanical friction, while maintaining original surface finish.
Properties of Diamolith DLC
Composition: Carbon, hydrogen doping elements
Structure: Mixture of sp3 (tetrahedral diamond type) and sp2 (trigonal graphitic)
Coating Thickness: 3.5 – 4.0 µm
Density: 1.8-2.2 g/cm3
Hardness: 3000-3500 HV (30-35 GPa)
Co-efficient of friction: Diamolith® on Steel: 0.10
Adherence: Scratch test: LC=40 N
Thermal conductivity: >400 W/K/m
Coefficient of dilation: 2.10-6/ C
Permeability: Barrier to hydrogen and other gases
Electrical resistivity: 108 ohms cm
Chemical resistance: Bio-compatible, inert in acids, alkalis, solvents, salts and water
Motor / Engine components
The Coating Properties of our Diamolith DLC coating provides the following benefits:
• Better tolerance and surface finish of parts • Extends product life • Reduction of lubricant usage • Anti-wear and Anti-sticking • Decrease maintenance cost • Higher load performance resistances • Chemical resistance
Structure Improvements • Superior wheel housing • Sway bars
Diamolith DLC coating allows the machinist to use higher cutting speeds and feed rates. Our customers also experience longer tool life and time savings due to reduced tool changes. The most common application is for the coating of cutting tools for nonferrous materials, such as Aluminum, Graphite, copper, composites to name a few.
Sharp edges are maintained
Complex tool designs can be coated, including advanced chip breaker designs
Depth of cut is not limited to the length of the diamond segment, as is the case for PCD tools
Diamolith® can be coated on HSS and carbide tools
The tools can be reground, making the best use of expensive cutting tools
Diamolith DLC coating has been instrumental to support the development of next generation semiconductor platforms where maintaining a sealing surface and / or a potential high wear area in a non-lubricated environment is critical to tool performance.
Typical materials used for handheld instruments include the 300 and 400 series and precipitation hardened stainless steels due to their resistance to corrosion. However, their lack hardness, have a tendency to galling when sliding against each other and show limitations in maintaining cutting edges. coatings add the required hardness to the surface, preserving pointy tips and sharp edges for cleaner cuts, which reduces the tendency of cell necrosis. The life time of instruments and tools are extended significantly.
Cutting edge retention
Reduced light reflection of 70%
Low friction, abrasion resistant
Quick Delivery Coating, convenient shipping and part stocking programs are available.