Winter 2017 issue of Powder Metallurgy Review now available for free download

December 22, 2017

 

The Winter 2017 issue of Powder Metallurgy Review has been released and is available to read for free as a digital download, or in print through the purchase of a magazine subscription.

The 100-page issue features more than 45 pages of the latest industry news, plus exclusive articles including a history of the development of rare earth magnets and research into alternative magnetic materials, the optimisation of iron-based PM self-lubricating bearings, the Japan Powder Metallurgy Association’s 2017 awards and a selection of papers from Euro PM and POWDERMET 2017.

 

High-performance permanent magnets: The influence of rare earths and the development of alternative materials

Rare earth permanent magnets have, for the past forty years dominated the higher performance magnetic devices market. However, the availability of raw materials globally is proving a risk to market stability for this important class of magnet.

Material scientists have the opportunity to address this issue and the use of elements such as nitrogen, nanostructured materials and metastable materials, is now being explored. Dr Sim Narasimhan reviews the developments and the challenges facing these alternative materials.

Optimising iron-based PM self-lubricating bearings: The influence of graphite

Sintered self-lubricating bearings are typically made from bronze alloys, however, for less demanding applications, iron-copper combinations offer a low-cost alternative. As a relatively high level of final porosity is required, a careful design of base powders and processing is necessary to achieve desirable properties in both the green and sintered states.

In this experimental study, Matteo Zanon of Pometon SpA presents existing and newly developed iron-copper PM solutions to address issues arising from the addition of graphite, with a special focus on the influence of natural graphite granulometry.

Innovation drives success in the Japan Powder Metallurgy Association’s 2017 awards

The winners of this year’s Japan Powder Metallurgy Association (JPMA) PM component awards highlight the continuing developments being made to further expand the range of applications for our technology.

The number of components recognised for their innovation suggests that there continues to be the potential for new applications in the automotive sector, particularly in the latest generation of highly efficient international combustion engines and automatic gearboxes.

Euro PM2017: Hot Isostatic Pressing for enhanced performance and demanding applications

A technical session at the Euro PM2017 congress, held in Milan, Italy, October 1-5, 2017, identified a number of process developments in Hot Isostatic Pressing (HIP) that address the need for high performance components in demanding applications.

In this report, Dr David Whittaker reviews three papers from the session which highlight the processing of the superalloy Astroloy, study the influence of isostatic pressure on phase transformations and suggest the use of glass container encapsulation to improve density distribution in stainless steel components.

POWDERMET2017: Improved dimensional control in PM iron-copper-carbon materials

Iron-copper-carbon is one of the most widely used materials in Powder Metallurgy component production thanks to its low cost and high mechanical and metallurgical properties. However, there are a number of issues which can result in the need for additional sizing and machining operations.

Papers presented at the POWDERMET2017 Conference, Las Vegas, June 13-16, 2017, discussed options to improve dimensional control and limit post-processing operations. Dr David Whittaker reviews a selection of these papers.

 

PM Review magazine can be downloaded for free online or purchased in print with a year’s magazine subscription.

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Powder Injection Moulding International magazine

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

  • Frank Petzoldt on the past, present and future of MIM
  • Saturation in metal Binder Jetting
  • Insights from the 2022 International Conference on Injection Molding of Metals, Ceramics and Carbides
  • Additive Manufacturing at CeramTec
  • The carbon footprint of injection moulding machines
  • Calculating the sintering shrinkage of MIM parts

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