Hard Metal Production by ERS: Processing Parameter Roles in Final Properties

José  María Gallardo; Iñigo Agote; Raquel Astacio; Thomas Schubert; Jesús Cintas; Juan  Manuel Montes; Yadir Torres; Francisco  G. Cuevas

doi:10.3390/met9020172

Metals (Feb 2019)

Hard Metal Production by ERS: Processing Parameter Roles in Final Properties

José María Gallardo,
Iñigo Agote,
Raquel Astacio,
Thomas Schubert,
Jesús Cintas,
Juan Manuel Montes,
Yadir Torres,
Francisco G. Cuevas

Affiliations

José María Gallardo: Department of Materials and Transportation Engineering and Science, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Sevilla, Spain
Iñigo Agote: Industry and Transport Division, Tecnalia Research & Innovation, Mikeletegi Pasealekua, 2., 20009 San Sebastián, Spain
Raquel Astacio: Department of Materials and Transportation Engineering and Science, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Sevilla, Spain
Thomas Schubert: Branch Lab Dresden, Fraunhofer Institute for Manufacturing Technology and Advanced Materials, Winterbergstrasse, 28., 01277 Dresden, Germany
Jesús Cintas: Department of Materials and Transportation Engineering and Science, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Sevilla, Spain
Juan Manuel Montes: Department of Materials and Transportation Engineering and Science, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Sevilla, Spain
Yadir Torres: Department of Materials and Transportation Engineering and Science, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Sevilla, Spain
Francisco G. Cuevas: Department of Chemical Engineering, Physical Chemistry and Materials Science, Escuela Técnica Superior de Ingeniería, Universidad de Huelva, Campus El Carmen, Avda, Tres de marzo s/n, 21007 Huelva, Spain

DOI: https://doi.org/10.3390/met9020172
Journal volume & issue: Vol. 9, no. 2
p. 172

Abstract

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Cemented carbide is a hard composite material, used widely in a variety of industries. The value of the global tungsten carbide market is expected to grow by 4.4% (compound annual growth rate) from 2017 to 2022. One of the main markets is in metal cutting and wear parts, where small pieces (or inserts), a few grams in weight, are used. Field-assisted sintering technique (FAST) technologies allow for the production of small blanks in a single step from powder, which are near final dimensions. Production cycles are very short. In this paper, one of the FAST processes, the ERS technology, is applied to obtain WC10Co parts. A review of the process variable effects on the final properties of the parts is accomplished. Final properties of a range of conventionally produced inserts are obtained, using 100 MPa compacting pressure, 80 MA/m2 of current density, and processing times of around 800 ms.

Published in Metals

ISSN: 2075-4701 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Mining engineering. Metallurgy
Website: http://www.mdpi.com/journal/metals

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