Gateway to Metal Casting Resources
HomeFoundry MapMold/Core/Mold Finishing    

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

Simulation of Dimensional Changes and Hot Tears During Solidification of Steel Castings

ABSTRACT
Cracks, or “hot tears,” may form in a steel casting during the late stage of solidification and would occur when contractions can no longer be accommodated by residual liquid flow or solid displacement. During the subsequent cooling of the solidified steel, contractions and distortions of the steel known as “dimensional changes” can cause the final product to vary significantly from the original pattern. The occurrence of hot teats and dimensional changes are hard to anticipate and correct using traditional foundry engineering methods. Research conducted by the University of Iowa has shown that hot tears are initiated in the residual liquid which is ruptured by contraction strain. Some successes have been reported in predicting the final dimensions of and residual stresses in castings using stress analysis. This project will combine the stress analysis and feeding flow/porosity models to form a model that predicts dimensional changes and hot tears during the solidification process of steel castings.
RELATED REPORTS
PERFORMING ORGANIZATION
University of Iowa
CONTACT INFORMATION
Malcolm Blair
Steel Founders' Society of America
780 McArdle Drive
Unit G
Crystal Lake, IL  60014
website: www.sfsa.org

phone: (815) 455-8240
fax: (815) 455-8241
email: blairm@sfsa.org

EERE logoMetal Casting logo