HALCROME

Nanostructured aluminum and chromium coating made with AAI (High Ionization Arc) technology

The HALCROME coating is a monoblock aluminum and chromium nitride coating, created with a modulated density structure.

We also produce a LT (Low Temperature) version with a reduced deposition temperature of up to 250°C, for special applications.

Technical features of the coating

Coating colour	Hardness	Elastic modulus E	Oxidation temp.	Coeff. of friction on 100Cr6	Deposition temp.	Typical thickness
Grey blue	4000 ± 50 HV	550 ± 10 GPa	>1100°C	0,30	480° C	1-3 µm

HALCROME PVD structure

Surface with reduced droplet count

The process produces a smooth surface that is resistant to high temperatures.

Density-Modulated Layers

AAI technology allows the coating density to be modulated by affecting the size of individual crystals. This creates unique mechanical and wear-resistant properties, such as a crack diffusion barrier.

Adhesion

Plasma surface preparation and AAI technology produce a base layer with a low number of defects. The coating perfectly conforms to the morphology of the cutting edge.

Microscopic structure of the Halcrome coating

When to use the HALCROME coating

High-end coating for carbide (HM) and HSS tools;
High-speed machining, dry or under minimal lubrication conditions;
Superalloys and abrasive-filled polymers;

machining of high-performance structural steels;
blanking punches;
thanks to AAI technology, it can also be used for microtools.