Manufacturing Technology 2025, 25(3):287-296 | DOI: 10.21062/mft.2025.032

Quality Prediction of Spheroidal Graphite Cast Iron for Machine Tool Parts

Jan Bredl ORCID...
Technical University of Liberec, Faculty of Mechanical Engineering, Department of Mechanical Engineering Technology, Studentská 2, 461 17 Liberec, Czech Republic

Today, considerable attention is paid to the production of solid castings (approx. 2000 kg) from cast iron with spheroidal graphite. The metallurgical preparation of large quantities of melt is very difficult. This difficulty is related not only to the melting and preparation of large quantities of melt, but above all to its metallurgical treatment - inoculation and modification. Melt modification ensures the production of cast iron with spheroidal graphite. Material castings, such as machine tool components, cannot be destroyed to determine the quality of the cast iron produced. Therefore, this paper outlines a methodology to proceed in determining the quality of manufactured castings. It is possible to observe the chemical composition of cast iron, thermal analysis of cast iron using liquidus temperature value, subcooling temperature, eutectic recalescence, primary solidification recalescence, eutectic solidification time. Furthermore, to observe the mechanical values of cast iron (yield strength, ultimate strength and ductility) on fabricated bars of overmolded Y blocks or to observe the micro-structure of cast iron on microscope.

Keywords: Spheroidal graphite cast iron, Rotary drum furnace, Inoculation, Modification, Thermal analysis

Received: January 19, 2025; Revised: April 24, 2025; Accepted: May 2, 2025; Prepublished online: May 5, 2025; Published: July 4, 2025  Show citation

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Bredl J. Quality Prediction of Spheroidal Graphite Cast Iron for Machine Tool Parts. Manufacturing Technology. 2025;25(3):287-296. doi: 10.21062/mft.2025.032.
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