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Micro Parts Manufacturing By Powder Metallurgy (Micro PM)

  • : Bernd Kieback1, Martin Dressler2, Marie Jurisch2, Kay Reuter2, Sebastian Riecker2, Thomas Studnitzky2
  • : 1TU Dresden/Fraunhofer IFAM, 2Fraunhofer IFAM
  • : PDF Download
  • : 2016

Abstract

Precision parts in PM traditionally are manufactured by press and sinter operations followed by sizing. The paper presents a new concept for small precision parts by a forming operation without die compaction. Fine metal powders are used, that enable part dimensions and geometrical complexity much less than 1 mm. The micro-parts produced in this innovative route are characterized by high density, strength and precision. The technique enables nearly the same complexity of shapes as the traditional powder metallurgy approach and is characterized by high productivity. The results with stainless steel and titanium powders will be presented. All processes from the metal powder to the precision micro-parts will be described in detail. Finally the paper will discuss the properties, dimensional tolerances, limits in part dimensions and the economy of this production route. This powder metallurgy approach has a great potential to expand the limits of powder metallurgy towards micro-parts manufacturing.

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