Analysis of Mechanical Properties and Permeability of Sand Moulding by Using Eggshell in Sand Casting

• Main Authors: Wahyu Kurnianto, Poppy Puspitasari, Wahono Wahono
• Format: Article
• Language: English
• Published: Universitas Negeri Malang 2018-10-01
• Series: Journal of Mechanical Engineering Science and Technology
• Subjects: mechanical properties, permeability, sand moulding, eggshell.
• Online Access: http://journal2.um.ac.id/index.php/jmest/article/view/5381

This study aimed to analyse the usage of Eggshell as mixture material of bentonite in metal casting process which used dried sand moulding. Eggshell variations in this study were 4%, 7%, 10% eggshell, and additional 3% of bentonite on each sample. This study used pre-experimental method and included to One-Shot Case Study model. The highest strength was found on the sample 3 ES 10%. Tensile strength of dried sand moulding reach up to 0.09 kg/cm2, the compressive strength of dried sand moulding reached up to 3.11 kg/cm2, and the shear strength of dried sand moulding reached up to 1.13 kg/cm2. Based on the test result indicated that permeability of sand moulding by heat treatment at 110ºC for 60 minutes at sample of 3 ES 10% was at 178.3 ml / min.