Our latest generation of the IBF200 is specially designed for industrial series production of workpieces with a diameter of 200mm and a weight of 15kg. Likewise, components up to 300mm, depending on the process up to 350mm, can be machined by direct loading and associated longer pumping times.

Here you´ll find the PDF

A 24/7 operation with cycle times of 2-3 min allows high quantities even with small optics and shorter machining times. The tool change is semi-automatic, so that the process chamber no longer needs to be ventilated. Downtimes are thus reduced to a minimum. Average maintenance intervals of several 100 hours allow for targeted time planning. Furthermore, the processes can be defined to precisely defined target values (PV, RMS). An example is shown below, here the processing time can be halved.

The system is optionally available in a 3-axis or 5-axis configuration. This means that IBE or IBS processes can also be realised.

You can find further information on our homepage: IBF 200

We offer design, manufacturing, assembly and commissioning at customer’s site of machines and complete plants. We are not committed to any particular industry and are happy to listen to our customers’ ideas to examine the feasibility of the projects.

Furthermore, we offer feasibility studies in the area of ion beam processing. Customer-specific issues can be examined on our IBF laboratory facilities and manufacturing processes can be developed or optimized.

We hope this article has aroused your interest and look forward to your feedback. If you have any questions about an area, please feel free to contact us at and we will get back to you. info@ntg.de

NTG develops and manufactures components to complete the Wendelstein 7-X at the Max Planck Institute for Plasma Physics in Greifswald. In this experimental facility for researching nuclear fusion technology, built on the principle of the stellarator, plasmas are enclosed with superconducting coils and heated to 100 million degrees Celsius. All elements coming into thermal contact with the plasma must be cooled with water. This also includes the ports, a significant component group of the stellarator. The ports connect the plasma vessel with the outer vessel; via these accesses, the plasma is observed and supplied. To prevent the ports from heating up inadmissibly due to thermal radiation from the plasma, and thus the cryogenic chamber, they must be protected with water-cooled linings. These linings – a total of 86 so-called “portliners” – were developed, built and tested by NTG.

The technical challenge was the combination of high power input, tight tolerances and use in ultra-high vacuum. The cooling system is designed for a power input of 50 to 100 kW/m2 and operates according to the heat exchanger principle: The cold water runs in four millimeter-thin tubes, which in turn are located in eight millimeter-thick tubes. The water flows back in the space between these two pipes. This design allows the different geometries of the nozzle linings – round, rectangular or oval – to be shaped and manufactured precisely to fit the narrow installation spaces of 15 to 20 millimeters.

Welding:

In the welding area, manual arc welding, TIG, MIG and MAG welding are used to weld unalloyed, low-alloyed and high-alloyed steels, aluminum, high-nickel materials and other special materials.

Single parts and series can be produced according to customer requirements. The welding staff is certified according to ISO 9606 and the testing staff is certified in accordance with EN 473.

Other certificates to which we are authorized to fabricate are DIN 18800-7 Class E, EN 1090-2 EXC4, EN 1090-3 EXC4 and AD 2000 leaflet HP0.

Assembly of components:

On more than 400m2 we assemble smaller sub-assemblies, single parts or series, modules or complete plants, including electrical work and necessary testing.

We hope this article has aroused your interest and look forward to your feedback. If you have any questions about an area, please feel free to contact us and we will get back to you.  

info@ntg.de

Pushing the Limits II

In addition to the new development of small optics ion beam figuring by means of a 40µm ion beam last year (for more Informations click here), we are currently extending the range of our ion beam sources to the processing of large optics.

In addition to our ion beam processing systems for machinable optical diameters from 1mm to 2000mm, which are already in use worldwide, this system opens up the range for machinable diameters above 2000mm with a high volume removal rate.

Our new tool, currently in commissioning, delivers an ion beam width in the range of 120mm to 200mm (half width of the Gaussian shape) at an extraction voltage in the range of 0.6 kV to 1.5kV with the working gas argon. First plasma, beam and material removal tests are planned for the next weeks.

We will keep you informed.

NTG is also active in the service sector of contract manufacturing in the areas of turning, milling, welding, component assembly and special machine construction. The main focus is on stainless steel and aluminum processing. However, other materials such as titanium, tantalum, inconel, zircaloy, ceramics and plastics can also be processed with our modern machinery.

Turning:

In the field of turning, we have multi-functional machines, as well as machines for CNC turning, turning-manual, face turning and center turning, allowing us to machine components up to 2,500 mm in diameter and 3,550 mm in length.

Milling:

In the field of milling, we include CNC controlled and manual boring mills, CNC milling machines with 3, 4 and 5 axes and 5 axis CNC milling machines with rotary option. We can machine components up to 20,000 kg and a size of (X/Y/Z) 7,500 mm x 1,500 mm x 4,000 mm.

If we have aroused your interest with this article, we look forward to your feedback and your contact at: info@ntg.de