Hot Tears and Shrinkage Prevention in Aluminum Permanent Mold Casting

Based on the literature review, the problem of this research can be defined as the lack of data about chill insert influence on the solidification behavior of permanent mold castings by the computer simulation. Due to insufficient information concerning the methods of chill inserts designing in permanent mold casting using the computer simulation, it was decided to investigate the chill insert capability of prevention of hot tears and shrinkage formation by accelerating the cooling rate in critical parts of castings. Because the hot tearing and shrinkage are the common problem in foundry practice, the development of methods, which enable to avoid the defect formation on the design stage of cast production, will significantly reduce the production and service costs