Effect of lubricant particle size distribution on the processing and properties of P/M ferrous parts

AuthorSearch for: ; Search for: ; Search for: ; Search for:
TypeArticle
Proceedings titleInternational Powder Metallurgy Congress and Exhibition, Euro PM 2013
ConferenceInternational Powder Metallurgy Congress and Exhibition, September 15-18 2013, Gothenburg, Sweden
ISBN9781899072408
AbstractThe role of lubricants during compaction is crucial and nowadays even more important, due to the increased number of PM parts with higher densities and/or challenging ejection conditions. The development of new lubricants for single compaction requires however an excellent understanding of the lubrication mechanisms and the behaviour of these new compounds. In this paper, the effect of the lubricant particle size distribution on the compaction and ejection behaviour, but also on the static and dynamic properties of ferrous powder metallurgy parts is studied. Indeed, as parts reach higher densities, the influence of the size and shape of pores become dominant on the mechanical performance and particularly fatigue resistance of the parts. Water atomized powder mixes containing different particles sizes of ethylene-bis-stearamide (EBS) lubricant were compacted both on a laboratory press and on an industrial mechanical press at higher speed rates. In addition to compressibility curves and static sintered mechanical properties, complete ejection curves and fatigue tests results are presented.
Publication date
PublisherEuropean Powder Metallurgy Association
LanguageEnglish
AffiliationNational Research Council Canada; Automotive and Surface Transportation
Peer reviewedYes
NPARC number23000516
Export citationExport as RIS
Report a correctionReport a correction
Record identifierdd4c1ddf-3048-4b04-b2ed-21d55d4c9557
Record created2016-07-27
Record modified2016-07-27
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)