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Always the optimal coating for your tool application

Businesses in the cutting tool market are well aware of the benefits of coatings to increase tool lifetime, performance and quality. But determining which coating offers the best protection for your specific application is not easy. Cutting tools are used many different market segments, including automotive, aerospace, medical and electronics. In each of these markets, specific materials need to be machined, such as low-carbon and stainless steel, hardened steel, aluminium, titanium and nickel alloys. Then there is the wide variety of tool types, such as drills, mills, taps, hobs and inserts for milling and turning. When you are considering the purchase of coating equipment, the combination of the material and tool type is critical to determine which coating technology to go with.

Selecting the Right Technology Base

Physical vapour deposition (PVD) and chemical vapour deposition (CVD) are the two most important coating types for cutting tool applications. For certain applications, both coating technologies offer equally impressive results. For the majority of applications, though, one of the two technologies is strictly superior.

CVD coatings typically outperform PVD coatings in turning applications, where thick coating layers offer the extremely high wear resistance that can increase the lifetime of inserts. The thinner, harder PVD coatings, in contrast, perform better on other applications: for instance, tools with a complex, strongly curved geometry such as shaft tools (taps and drills) or tools where a sharper cutting edge is needed.

 

Finding the Right Technology Partner

Many equipment manufacturers only specialise in one of the two technologies, PVD (and the closely related technology of plasma-assisted chemical vapour deposition, or PACVD) or CVD. Bernex and Hauzer, both part of the IHI Group, together offer the complete portfolio. This means you can be assured that we can offer you the optimal solution for your cutting tool application, whether that is a CVD or a PVD coating. That means you do not have to make the choice between technologies before coming to speak with us about your application.

Both companies are experts in their field. Bernex has been the leading supplier of CVD technology since 1973, whereas Hauzer has been serving the tool coating industry with PVD coating systems since 1983. Both companies have long-standing expertise building coating machines for tool manufacturers, OEMs and coating service providers, and have a detailed understanding of the different business models and the pressures involved.

 

Proven Technology for Conventional Tool Applications

When you are looking to increase tool performance and lifetime for general machining applications, both Bernex and Hauzer machines offer a variety of options. Tool manufacturers and OEMs value the fact that the equipment can be set up to fit their exact business needs. Customers in the coating services industry benefit from the robustness of our industrial equipment, the optimized cost of ownership and worldwide support on a daily basis.

Both Bernex and Hauzer equipment can be set up with a wide range of technologies that have proven themselves in hundreds of machines in the field – many of which are several decades old and are still performing at a quality level that meets the best in class today.

 

Experts in Joint Development for Special Applications

For the highly specific applications, too, Bernex and Hauzer are the go-to suppliers of coating equipment. With a combined 85 years’ experience, we are leading innovators and experts in developing specific or even proprietary coatings with CVD and PVD technologies.

Their joint development approach is a strength for both companies. Louis Tegelaers, Product Manager Tool at Hauzer, says: “When we discuss coatings with our customers, we will not stop until we truly understand their requirements and can build the right machine for their business needs. With a mindset as flexible as our system configurations, Bernex and Hauzer engineers enjoy developing special solutions that will help our customers distinguish themselves in the market. Over the years, this has led to proprietary coatings, special lay-outs, custom-made tables, additional software features and much more.”

 

A Long-term Commitment to Your Success

Bernex and Hauzer are both proud of the lasting relationships they have with many customers. “We’ve been number 1 in CVD since 1973,” says Philippe Ricklin, Bernex Sales & Marketing Director. “Around 70% of all CVD-coated cutting inserts worldwide are coated on Bernex machines. Like Hauzer, Bernex specialises in high-tech upgrades and fast, reliable support – because investing in a coating system is a long-term commitment.”

In the complex, high-pressure cutting tool market, it pays to have a technology partner that can help determine the right technology base without ulterior motives. With Bernex and Hauzer as that partner, you can also rest assured that we will be happy to keep up with the developments in your business in the future, making sure you get the most out of your tool coating system even if your customers, applications or technology requirements change.  

 

Bernex: Highly Tunable Multilayer Coatings

Bernex machines produce thin-film CVD coatings on a wide variety of substrates such as graphite, ceramics, tungsten carbides, tool steels and high- temperature nickel alloys. With their technology, it is even possible to coat the inside surfaces of complex shapes or create complex multilayer coatings that consist of many different elements.

Available technologies

  • LP  & VLP CVD (low and very low pressure)
  • MT & HT CVD (mid and high temperature)
  • Gas precursors (H2, H2S, HCl, BCl3, NH3)
  • Liquid precursors (TiCl4, CH3CH, SiCl4)
  • Solid precursors (Al, Hf, Zr, Cr, Ta)
  • Full range of coatings:
    • TiC/TiN, TiCN (MT, HT), aAl2O3, κAl2O3, HfN, ZrN, ZrC, Ta, Zr(CN), TiZr(CN), ZrO2, Ti(CBN), TiB2, TIAlN

CVD coatings typically outperform PVD coatings in turning applications, where thick coating layers offer the extremely high wear resistance that can increase the lifetime of inserts. The thinner, harder PVD coatings, in contrast, perform better on other applications: for instance, tools with a complex, strongly curved geometry such as shaft tools (taps and drills) or tools where a sharper cutting edge is needed.

 

Hauzer: Highly Flexible Configurations

Hauzer has a very broad range of mature PVD and PACVD technologies, which can be configured and combined freely on our modular equipment. The result: a system configured for your specific business need. All this technology is available in the Hauzer competence centres, which allows us to do joint development and work toward the optimal coating solution.

Available technologies

  • CARC+ Flex
  • Pulsed Arc
  • HiPIMS
  • DMS/T-mode
  • Magnetron Sputtering
  • PACVD
  • Plasma Etching
  • Plasma Cleaning
  • Focused Ion Rapid Etch
  • Plasma Nitriding