Mitsubishi's Challenge to the Limit of High Speed Steel Cutting! - "Super Dry III Coating" (Super Dry III hob): Machine Tool

Oil fumes from cutting fluid are not only a source of oil dirt buildup and bad odor on the factory floor but also a cause of sore throat pain and skin problems, and moreover, can be seen as a cause of a cancer. In addition, the cutting fluid itself can be a cause of fire and also raises an issue of dioxin contamination and acid rain associated with the incineration of chlorine-based waste oil. Because of these factors, people's attention is now on dry cutting in which no cutting fluid is used. Moreover, regarding high-performance dry cutting, strong requests have been received from customers saying that "we need a tool that withstands a higher cutting speed than conventional 200 m/min to reduce the cycle time," "we want to prolong the tool life to reduce the tooling cost," and so on.

Mitsubishi Heavy Industries' precision cutting tool "Super Dry III" offers the following advantages:

• Use of this coated cutting tool realizes completely oil-free dry cutting.
• Higher oxidation-resistance temperature of the coating prevents degradation of the film hardness at high temperatures, improving the wear resistance.
• Improvements in the film structure provide increased film strength and enhanced bonding force.

Oxidation-resistant coating

Excellent oxidation resistance at high temperatures

Comparison of MHI's dry coating tools

Cross-sectional photographs of coating film (SEM)

Enhanced bonding force through improvements in the density of the film structure

Comparison of dry coating tools

MHI's "Super Dry III" cutting tools help improve your working environment and significantly enhance your productivity and the prolonged tool life contributes to the reduction of your tooling cost.