The analysis of strength and fracture morphology of Al-Si compound made from moulding sand formulation with bentonite binding material and Portland cement
Journal Title: Journal of Achievements in Materials and Manufacturing Engineering - Year 2018, Vol 1, Issue 89
Abstract
Purpose: This research aimed to analyse the casting result of Al-Si compound used formulation of moulding sand with bentonite binding material and Portland cement. Design/methodology/approach: Bentonite binding material’s type consisted of swelling (Na-bentonite) and non-swelling (Ca-bentonite). Optimum formulation of the moulding sand was 4% of swelling bentonite and 6% of Portland cement, 6% of non-swelling bentonite and 4% of Portland cement. The optimum formulation result of molding sand with bentonite binding material and Portland cement was used in Al-Si compound casting. The result of Al-Si compound casting strength was examined which in terms of its tensile strength, toughness, and hardness. Besides the three tests, the result was also supported by the fracture shape morphology of tensile test and impact toughness test result. Based on the Al-Si compound tensile test result, it was found that the best value was obtained when using 105.52 MPa of swelling bentonite. Findings: The impact toughness test result presented that the use of non-swelling bentonite produced better toughness value which was 0.00592 J/hour while the mickroVickers hardness test result showed that Al-Si compound result using non-swelling bentonite produced 111.04 HV hardness. Based on the fracture morphology test result using SEM of Al-Si compound casting result using swelling and non-swelling bentonite after being tested its tensile strength and impact toughness showed that the same fracture which was brittle fracture tended to appear. Research limitations/implications: In this casting process, combination which is being used is bentonite (swelling and non-swelling) and Portland cement as mould sand binding material. Practical implications: The combination can be used to find the bentonite type that can produce binding material formula with high binding level which can minimize defects on the resulted casting products. Originality/value: In this study swelling and non-swelling bentonite mixed with certain level of Portland cement combination are used.<br/><br/>
Authors and Affiliations
F Andoko, P. Puspitasari, F. Gapsari
Keywords
Related Articles
- EP ID EP399481
- DOI 10.5604/01.3001.0012.6664
- Views 84
- Downloads 0
Mechanical properties of Easy Fill composites after storage in mouthwashes
Purpose: The aim of the presented work was to investigate the influence of different mouthwashes on the chosen mechanical properties of different dental restorative composites. The null hypothesis was that the mouthwashe...
Situational model of technological operations for secondary metallurgy
Purpose: The aim of this study was development of a computer situational model of heat and power processes and transport operations for secondary steelmaking (SSM) to evaluate the effectiveness of the proposed SSM energy...
Study on nano scale pyrotechnic star chemicals in aerial fireworks manufacturing
Purpose: Firework products are commonly used by people during festival times. Recentlypeople are attracted by aerial display type fireworks because of its mesmeric displayperformance in the sky. Aerial firework compositi...
Investigation and prevention of the residues formed in melting furnaces and transfer ladles used in low-pressure Al-casting technologies
Purpose: Refractory life, in Al-casting processes such as alloy wheel production, is obviously affected by the inclusions formed in the transfer ladles and holding/melting furnaces in which melti...
Design and analysis of salt collector
Purpose: Salt is one of the important cooking ingredients used in our daily life. TamilNadu is the second largest producer of salt in India, next only to Gujarat. The salt iscollected manually by the labours. Since, ther...