MIM parts approved for Eurofighter engine

July 1, 2007

000386MIM components are to go into series production for the EJ200 engine used in the Eurofighter aircraft following successful testing in rigs and engines. MIM is said to have the potential for substantial cost reductions in aero engine applications. Modern aero-engines have to fulfil extreme requirements concerning reliability, minimum weight, high performance, economy and long life. Over the 40 years since the first generation of commercial turbo-jets were introduced, reliability has improved by a factor of 10.

This success was possible thanks to progress in materials, manufacturing and surface technologies, and aero engine producers such as MTU Aero Engines in Munich, Germany, see a maturing of the design and materials in this sector but with competitiveness coming mainly from the ability to cut costs in parallel with continuing to improve engine performance.

Today’s relevant aero engine materials are said to be titanium alloys, Ni-base superalloys and high strength steels. In a report published by MTU, Dr Klaus Steffens and Dr Hans Wilhem state that for many years engine disk alloys with higher temperature properties could only be made by powder metallurgy, e.g Udimet 700, Rene 95 and IN 100. Now it is possible to produce similar alloys by casting plus forging.

Blades and vanes in the turbine are today cast but MTU has been studying MIM to achieve near-net shape HPC blades, vanes, levers and fasteners with tight tolerances and good surface quality (Rt = 1µm).

By optimising MIM processing parameters, nearly full density can be achieved with gt;95% of the strength of forged materials being reported. The remaining lack of properties can be compensated by material selection, states MTU. For example if the strength of forged IN 718 superalloy is need then there is the option to produce the part from MIM using Udimet 720LI.

In the latest issue of PIM International…

Download PDF

Extensive MIM, CIM industry and sinter-based AM industry news, plus the following exclusive deep-dive articles and reports:

  • Calling all product designers: Discover what Metal Injection Moulding could do for you through these award-winning parts
  • Binder Jetting of a dual-phase steel: Process insight and optimisation using the Master Sintering Curve
  • The rise of filament-based metal AM: New materials and machines present opportunities for MIM producers
  • Sinter-based Additive Manufacturing at the 20th Plansee Seminar on Refractory Metals and Hard Materials
  • Ceramitec 2022: Opportunities abound for producers of technical ceramics by CIM and AM

The latest news from the MIM, CIM and sinter-based AM industries

Don't miss any new issue of PIM International, and stay up to date with the latest industry news. Sign up to our fortnightly newsletter.

Sign up

News from the industry…

    Discover our magazine archive…

    The free-to-access PIM International magazine archive offers unparalleled insight into the world of MIM, CIM and sinter-based AM from a commercial and technological perspective through:

    • Reports on visits to leading part manufacturers and industry suppliers
    • Articles on technology and application trends
    • Information on materials developments
    • Reviews of key technical presentations from the international conference circuit
    • International industry news

    All past issues are available to download as free PDFs or view in your browser.

     

    Browse the archive

     

    Looking for suppliers of materials, production equipment and finished MIM, CIM or sinter-based AM parts?

    Discover suppliers of these and more in our advertisers’ index and buyer’s guide, available in the back of PIM International.

    • Metal powders
    • MIM, CIM & AM parts producers
    • Binders & feedstocks
    • Feedstock mixers
    • Furnaces & furnace supplies
    • Atmospheres & gas generation
    • HIP systems & services
    • Injection moulding machines
    • AM technology
    • Debinding systems
    Download PDF
    Share via
    Copy link
    Powered by Social Snap