Technology

Using Surfaces in the Design Process - Interview with Dr. Tim Hosenfeldt

Dr. Tim Hosenfeldt, Director of the Surface Technology Center

"I believe innovation means market leadership through technological leadership in products and processes, through profitable components and systems that provide added value for our customers by means of functional surfaces."

Dr. Tim Hosenfeldt, Vice President Competence Center Surface Technology

 
 
 

What was the starting point for the development of these innovative coating systems?
Our innovative engine and rolling bearing components are subject to increasingly demanding operating conditions, which was causing more and more surface wear. For this reason, we took the step of optimizing surfaces in the places where friction and wear occurs, and we focused on developing new coating systems that combine minimal friction with maximum resistance to wear and, due to their thickness of only a few microns, make innovative lightweight construction concepts possible without requiring additional space.

Please describe the main features of this innovation and explain the applications it has.
Our innovative adamantine coating systems carry the Triondur® brand name. The good thing about this system, and also the reason why it is so cost-effective, is that only one friction partner needs to be coated. In the case of a rolling bearing, for example, it is usually the rolling element that is coated, as this is simultaneously in tribological contact with the cage and with the inner and outer ring. At the Surface Technology Center, we support our customers and Application Engineering throughout the entire process: From application support and development to sample coatings here at the Surface Technology Center and implementation in the volume production process.

We delivered approximately 75 million components with Triondur® last year, and we are thus able to halve the friction that occurs in vehicle valve trains and thus reduce each vehicle's CO2 emissions by a valuable one to two percent.

What does innovation mean for you personally?
I believe innovation means market leadership through technological leadership in products and processes, through profitable components and systems that provide added value for our customers by means of functional surfaces.