Gateway to Metal Casting Resources
HomeResearch Results to Improve Ca Ferrous Casting    

Foundry Map
Die Casting Map
Research Results to Improve Casting Productivity
Apply for Research Funding
Case Studies and Technology Demonstrations
Reduce Energy Consumption
Training & Workshops
Learn More About the Metal Casting Program




Home | Contact Us

Prevention of Porosity in Iron Casting

ABSTRACT
The goal of this project is to develop a model to help foundries learn the mechanisms of porosity formation and other effects of gases in their iron castings. It will establish a quantitative relationship among the factors affecting porosity formation and better enable foundry operator to reduce/eliminate porosity formation in a production environment. For most foundries, porosity problems occur sporadically, but even occasional outbreaks can be costly. Even a small amount of porosity can significantly reduce the mechanical properties of the castings; as a result, the casting will have to be scrapped. In general, to of the all-scrap castings are lost to factors related, directly or indirectly, to porosity. Despite the obvious importance of the problem, there is no consensus on how to deal with it. Most porosity in iron castings is believed to be a result of the combination of solidification shrinkage and a decrease in the solubility of gases during solidification. Unfortunately, there are insufficient data to support this theory. Therefore, it is essential for the foundries to learn the mechanisms of porosity formation and other effects of gases in their iron castings. It is also essential to establish a quantitative relationship among the factors affecting porosity formation, in a form that can be used to predict its formation in a production environment.
RELATED REPORTS
PERFORMING ORGANIZATION
Climax Research Services
CONTACT INFORMATION
Thomas Prucha
American Foundry Society
1695 Penny Lane
Schaumburg, IL  60173
website: www.afsinc.org

phone: (800) 537-4237
fax: (847) 824-7848
email: Research@afsinc.org

EERE logoMetal Casting logo