R&D programme launched for Powder Metallurgy helical gears

March 25, 2019

R&D programme launched for Powder Metallurgy helical gears

The prototype PM helical gear produced by mG miniGears (Courtesy EPMA)


mG miniGears Spa, Padova, Italy, a manufacturer of precision parts, drive components, gear kits and complex system solutions and a company of hGears Holding GmbH, has launched a research & development programme to investigate the use of Powder Metallurgy for the production of helical gears. The programme will aim to expand the advantages of PM technology to the most demanding automotive applications, where low Noise Vibration Harshness (NVH) properties are requested.

According to the company, PM helical gears are characterised by elements that must be produced with helical motion movement of the punches, and elements where this movement is not allowed (typically a splined central hole or weight-reducing slots in the gear body). The combination of these requirements means that a new approach must be taken to the design of compaction tooling for the gears’ production.

A first prototype has been produced by the company which reportedly meets these requirements. To increase its knowledge of the stress and strain level of the tool, the company utilised strain gauges on the critical elements. The information gathered by this method will be used for the next generation of the tool, where the helix angle of the gear teeth will be increased to the maximum value currently used in the industry.

The prototype helical gear was entered into the EPMA PM Component Awards 2018 and displayed in the Awards Showcase at the Euro PM2018 Congress & Exhibition in Bilbao, Spain, October 2018. The main outcome of this research programme is expected to be the production of a cheap, light, strong and geometrically complex gear. By drawing on its knowledge and technology for gear manufacturing, mG miniGears expects to be able to to meet the highest quality requirements with its helical gears.


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