This laboratory is a laboratory related to casting. One of the main research themes is research on the lost model casting method, which is one of the technologies that can greatly reduce machining with near net shape. We are also studying the magic mirror phenomenon.
Basic Information
Faculty name/Affiliation
Sadatoshi Koroyasu / Department of Mechanical and Precision Systems Faculty of Science and Engineering
Specialized Fields
Foundry engineering
Research theme
Study on hot water flow in lost model casting method of aluminum alloy
Study on hot water flow in lost model casting method of aluminum alloy Lost-foam casting is a method in which a foamed styrol model is buried in dry sand, molten metal is injected as it is, and molten metal flows into the cavity due to thermal decomposition of the model to obtain a casting. It is one of the technologies that can be done. We are experimentally and theoretically investigating the mechanism of molten metal flow in this method.
Research on the magic mirror phenomenon The magic mirror phenomenon reproduces the pattern on the back surface in the reflected image of the mirror surface, and in this research, it is possible that the mirror surface becomes uneven due to external shrinkage due to solidification shrinkage during casting of the copper mirror and cooling shrinkage after solidification. Thinking about it, we actually made a small copper mirror and experimentally verified it by actually measuring the unevenness of the mirror surface. Furthermore, we perform hot water flow / solidification analysis and thermal deformation analysis and consider them numerically.
Papers and Conferences Presentation
Paper presentation
Title
Journal title
Laboratory
Contents
Effect of Melt Velocity on Density of Aluminum Alloy Castings in Expendable Pattern Casting Process
MATERIALS TRANSACTIONS, Vol.63, pp.629 635, (2022) DOI : doi.org/10.2320/matertrans.F M2021857
Effects of Reduced Pressure, Casting Design and Heat Transfer Resistance of Liquid Resin on Mold Filling in Expendable Pattern Casting Process of Aluminum Alloy
Effect of reduced pressure and casting plan and heat transfer resistance of liquid resin on the hot water flow of aluminum alloy loss model casting method
Journal of Japan Foundry Engineering Society, Vol.91, pp.737-742, (2019) DOI: 10.11279 / jfes.91.737
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