|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Frontiers in Solidification Science and Engineering
||The Elimination of a Surface Defect in Traditional Open Sand Casting of Lead
||Arun Prabhakar, Konstantinos Salonitis, Mark R Jolly
|On-Site Speaker (Planned)
Open sand casting of lead sheets is a traditional process for producing sheets that are used for architectural applications. Due to the development of more cost-efficient techniques like the ‘Direct Method’ and ‘Rolling’, nowadays this process is only used to manufacture lead sheets for premium applications in the heritage industry. The manufacturing process and appearance of the cast sheets makes it a unique product and has high demand in the heritage industry. The process faces many issues relating to quality of the sheets produced, mainly surface defects. This paper focusses on identification of the root cause of a particular type of surface defect on sand cast lead sheets, which appear like grooves, and remedies for its elimination. The defects were characterised using SEM with an Energy-Dispersive X-Ray Analyser and experiments with different molding mixtures were conducted. The defects were caused due to expansion and poor green strength of the mould.
||Planned: Supplemental Proceedings volume