Abstract
In the foundry, green sand moulding is an important process having a major influence on the casting process and product quality. In order to clarify the behaviour of sand particles in air-flow press moulding, the sand moulding process model has been built using the distinct element method (DEM) coupled with air flow analysis. In this model, the individual particle is moved by three forces, namely, contact force, drag force and gravitational force. Numerical simulation is performed to predict the behaviour of the sand particles during the air-flow stage, and laboratory experiments are carried out to examine the calculated results. From the simulation, contact force and drag force of individual particles are obtained as the function of time. It is clarified that effective force acting on the particles is changed from drag force to contact force during the process. This study utilizing DEM, gives useful information such as the effective moulding parameters for the optimisation of the air-flow process.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
