Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Experimental and finite element simulation study of capsule-free hot isostatic pressing of sintered gears
Chalmers University of Technology, Sweden.
KTH Royal Institute of Technology, Sweden.
Höganäs AB, Sweden.
Chalmers University of Technology, Sweden.
Show others and affiliations
2018 (English)In: The International Journal of Advanced Manufacturing Technology, ISSN 0268-3768, E-ISSN 1433-3015, Vol. 99, no 5-8, p. 1725-1733Article in journal (Refereed) Published
Abstract [en]

A novel approach to reach full density in powder metallurgy (PM) components is demonstrated in this work. Water-atomised Mo-prealloyed steel powder is utilised for manufacturing cylindrical and gear samples through double pressing and double sintering (DPDS) process route. The effect of sample geometry and powder size fraction on densification is investigated and it is found that the DPDS route enables a density level of > 95% which is sufficient to eliminate the surface open pores. Reaching such high density is necessary, in order to perform capsule-free hot isostatic pressing (HIP). After HIP, full densification is achieved for the cylindrical samples and only near full density is realised for the gears resulting in neutral zone formation due to the density gradient. In order to predict the densification behaviour during the compaction, FEM simulations considering the gear geometry are performed for both the pressing stages and HIP. The simulation predicted a similar densification behaviour with the formation of the neutral zone. The proposed DPDS route with capsule-free HIP in combination with FEM simulation is demonstrated as a potential route for manufacturing full-density PM steel components, e.g. gears, suitable for high-performance applications.

Place, publisher, year, edition, pages
2018. Vol. 99, no 5-8, p. 1725-1733
Keywords [en]
PM steels, Gears, Pressing, Capsule-free HIP, Density, Finite element simulations
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-35151DOI: 10.1007/s00170-018-2623-4Scopus ID: 2-s2.0-85052611724OAI: oai:DiVA.org:ri-35151DiVA, id: diva2:1247204
Available from: 2018-09-11 Created: 2018-09-11 Last updated: 2019-01-08Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopushttps://doi.org/10.1007/s00170-018-2623-4
By organisation
Swerea KIMAB
In the same journal
The International Journal of Advanced Manufacturing Technology
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 15 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.8