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26.04.2017 Mikron Tool AG D - Outils-Accessoires-Mécanique

Cr-Co alloys

Exclusively for the highest demands
Chromium-cobalt alloys represent a special group among the  superalloys. Due to their high price and poor machinability they are only used when there are no other more cost-effective alternatives.

Today these alloys are found predominantly in the medical technology because of their corrosion resistance and bio-compatibility. They are also especially suitable for dental equipment where in the mouth's humid environment a property such as "completely corrosion-resistant" is indispensable. Furthermore, since the price for the raw material is high, reliability constitutes an important factor in the decision as to how and with what tools a part is to be machined.

The challenge
The extremely high degree of hardness combined with high elasticity and poor thermal conductivity poses the highest demands on the machining process and tools are exposed to high wear. The surface tends towards strain hardening. With the price for the raw material being high, the process reliability is an important factor in the decision, how and with which tools a part is being machined.

The solution
Just like with iron-based or nickel-based alloys, Mikron Tool developers have also paid special attention to the characteristics of Cr-Co alloys. In particular, this means preventing the occurrence of excessive heat as much as possible either through proper cooling or by reducing the cutting forces.  

To know more

Cr-Co alloys

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