Ultra-precision machining

High-precision parts are being used more and more frequently in the manufacture of optics, laser system components, in medical technology and in tool making. Ultra-precision machining technologies are crucial to the successful production of high precision optical and mechanical components in a wide range of different materials. 

Overview of the entire process

At Fraunhofer IPT we draw on many years of experience in the field of ultra-precision machining to produce parts with the highest levels of form accuracy and surface quality. We always take a holistic view, encompassing the entire production process: We analyze the part geometry and design the processes accordingly. We develop new processes and establish these processes in industrial applications. 

For each application its own production technology 

We machine numerous different materials including ceramics, tungsten carbides, non-ferrous metals, steels, plastics and glass. At Fraunhofer IPT, we are fully equipped with state-of-the-art machinery for ultra-precision grinding and ultra-precision turning with monocrystalline diamond tools including ultrasonic assisted diamond turning. The manufacturing processes are capable of producing a wide range of geometries including rotationally and non-rotationally symmetrical parts such as spheres, aspheres, freeform surfaces and structured surfaces. Using special-purpose ultra-precision machines and air bearing spindles in conjunction with suitable process strategies, we can achieve form accuracies of P-V < 250 nm and surface roughness of Ra < 5 nm. 


  • Feasibility studies and prototyping
  • Developing and qualifying machining processes
  • Machining new materials
  • Engineering consulting

Would you like to know more?