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Innovative powder based manufacturing of high performance gears
RISE, Swerea, KIMAB.
KTH Royal Institute of Technology, Sweden.
RISE, Swerea, KIMAB.
Höganäs AB, Sweden.
Show others and affiliations
2016 (English)In: World PM 2016 Congress and Exhibition, European Powder Metallurgy Association (EPMA) , 2016Conference paper, Published paper (Refereed)
Abstract [en]

There are strong driving forces towards high-performance gear wheels which can handle higher engine outputs, or allow more compact designs of transmissions. Today the performance and life of conventionally manufactured gear wheels are limited by factors such as inhomogeneous microstructure and distribution of inclusions. Powder metallurgy (PM) can solve some of these problems but has so far had limitations caused by porosity. In this paper a cost effective way to eliminate porosity by HIP-ing without canister has been evaluated with encouraging results. Parameters such as powder particle size, lubricant and double pressing have been evaluated in the PM route in order to get a gas tight surface enabling effective post HIP-ing. So far double pressing has given promising results. Challenges such as open porosity, surface porosity and inclusions are addressed in the paper.

Place, publisher, year, edition, pages
European Powder Metallurgy Association (EPMA) , 2016.
Keywords [en]
Cost effectiveness, Gear manufacture, Gears, Metallurgy, Particle size, Porosity, Wheels, Compact designs, Cost effective, Driving forces, Engine output, Inhomogeneous microstructure, Open porosity, Powder particles, Surface porosity, Powder metallurgy
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-42179Scopus ID: 2-s2.0-85035359470ISBN: 9781899072484 (print)OAI: oai:DiVA.org:ri-42179DiVA, id: diva2:1384199
Conference
World Powder Metallurgy 2016 Congress and Exhibition, World PM 2016, 9 October 2016 through 13 October 2016
Note

Funding details: Fellowships Fund Incorporated; Funding details: VINNOVA, 2013-05594; Funding text 1: This work was financed by the national agency VINNOVA under contract 2013-05594 within the Programme FFI.

Available from: 2020-01-09 Created: 2020-01-09 Last updated: 2020-01-09Bibliographically approved

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CiteExportLink to record
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