Powder Metallurgy industry recognises VVT technology

August 8, 2010

The Metal Powder Industries Federation (MPIF) has identified variable valve timing (VVT) as a Powder Metallurgy (PM) Industry Landmark technology for its innovative and significant use of PM parts. The recognition was announced at PowderMet2010, International Conference on Powder Metallurgy & Particulate Materials, June 27–30, Ft Lauderdale, Florida, USA.

Originally introduced in the late 1960s, VVT systems began using PM parts in North American internal combustion engines in 2000. The technology assists automakers to meet environmental and fuel-efficiency standards by advancing or retarding the timing of the intake or exhaust valves. VVT allows cam timing to change, which results in improved engine efficiency and power over a wider range of engine RPMs.

The PM industry supplies an estimated 40 million PM steel parts for VVT systems annually in North America alone, which is projected to grow to 70 million parts annually by 2015. Most current VVT systems contain three complex PM parts, a vane rotor, sprocket, and thrust plate, weighing about one pound each. PM’s net-shape, weight-saving, high-volume part-to-part consistency and superior surface finish advantages provide substantial value to OEMs in this application. Making PM parts for VVT systems offers substantial cost savings over machining from wrought steel as well as precision thickness tolerances in the range of 30 microns. This application is one of the most outstanding examples of the PM industry’s innovative strides in the automotive market.

For further details contact James Dale [email protected]  or visit www.mpif.org



Recent issue of Powder Metallurgy review - your go-to resource to stay updated on the world of powder metallurgy and metal powders

In the latest issue of PM Review…

PM Review Spring 2023

Download PDF

Extensive Powder Metallurgy industry news coverage, and the following exclusive deep-dive articles and reports:

  • GKN Powder Metallurgy: A strategic vision for the future of permanent magnets for EVs
  • Building trust in the Powder Metallurgy industry: The role of standardisation and an update on recent work by ISO/TC 119
  • High-volume powder production for Additive Manufacturing: SMS group’s continuous metal powder production process
  • Development of enhanced-performance PM brake pads for high-speed trains by Beijing Tianyishangjia New Material Corp., Ltd.
  • The START project: Creating a sustainable supply chain for green energy harvesting products by Powder Metallurgy
  • World PM2022: Reviewing three innovative methods for metal powder production

The latest news from the world of metal powders, delivered to your inbox

Don't miss any new issue of PM Review, and get the latest industry news. Sign up to our weekly newsletter.

Sign up

Join our community

From the industry…

Discover our magazine archive…

The free-to-access PM Review magazine archive offers unparalleled insight into the world of Powder Metallurgy from a commercial and technological perspective through:

  • Reports on visits to leading PM part manufacturers, metal powder 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 PM production equipment, metal powders, R&D support and more?

Discover suppliers of these and more in our
advertisers’ index and buyer’s guide, available in the back of PM Review magazine.

  • Powders & materials
  • Powder process, classification & analysis
  • PM products
  • Atomisers & powder production technology
  • Compaction presses, tooling & ancillaries
  • Sintering equipment & ancillaries
  • Post-processing
  • Consulting & toll sintering
Download PDF
Share via
Copy link