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Comparison Of High Performance Premixes In Industrial Compaction Of A Water Pump Pulley

  • : Vincent Paris1, Maryam Moravej1, Philippe Francois2, Vladimir Paserin1, Davide Vitti3
  • : 1Rio Tinto Metal Powders, 2Rio Tinto Iron and Titanium GmbH, 3Metalsinter srl
  • : PDF Download
  • : 2017

Abstract

As powder metallurgy applications expand to more complex applications, there is an increasing need for high performance premixes. These premixes should offer an excellent level of lubrication during compaction/ejection and provide an even fill of the die leading to a stable and robust process. This study explores the serial compaction of a water pump pulley on an industrial hydraulic press. The results highlight the comparison between three premixes, containing two commercially available lubricants and one experimental lubricant. The premixes are benchmarked against a reference material. The focus of this study is given to the compaction stage, looking at part-to-part weight stability and part height consistency. Surface quality after compaction and ejection is also presented. The compaction/ejection properties of the different premixes are also compared using a specially instrumented compaction press.

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