Process parameter influence on Electro-sinter-forging (ESF) of titanium discs

Emanuele Cannella, Chris Valentin Nielsen, Niels Bay

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Abstract

Electro-sinter-forging (ESF) is a sintering process based on the resistance heating principle, which makes it faster than conventional sintering. The process is investigated as a function of the main process parameters, namely compacting pressure, electrical current density and sintering time. The present work is focused on analysing the influence of these process parameters on the final density of a disc sample made from commercially pure titanium powder. Applying the design of experiments (DoE) approach, the electrical current was seen to be of largest influence. The maximum obtained density was 94% of the bulk density of pure titanium. Density measurements were carried out by measuring the mass and volume separately. The volume was estimated applying two methods, namely the Archimedes’ suspension method and 3D scanning to build and measure the volume mesh of the sample. The density calculations proved to be compatible.
Original languageEnglish
Title of host publicationProceedings of the 18th International Conference of the European Society for Precision Engineering and Nanotechnology
EditorsD. Billington, R. K. Leach, D. Phillips, O. Riemer, E. Savio
PublisherThe European Society for Precision Engineering and Nanotechnology
Publication date2018
Pages315-316
ISBN (Electronic)9780995775121
Publication statusPublished - 2018
Event18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18) - Venice, Italy
Duration: 4 Jun 20188 Jun 2018

Conference

Conference18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18)
CountryItaly
CityVenice
Period04/06/201808/06/2018

Keywords

  • Electro-sinter-forging
  • Titanium powder
  • Design of experiments
  • Density measurements

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