Influence of process parameters on quality of Al7SiMg alloy casting using statistical techniques. (2016)

• Record Type: Journal Article
• Authors: Viquar Mohiuddin, M.; Krishnaiah, A.; Ferhathullah Hussainy, S.; Laxminarayana, P.
• Is Part Of: Materials today. Volume 3:Number 9(2016)Part B
• Page Start: 3726
• Page End: 3733
• Publication Date: 2016
• Subjects: Sand moulds -- Al7SiMg alloy -- Quality -- Taguchi technique -- ANOVA analysis; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2016.11.020
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Manufacturing industry is considered to be the backbone of the economy of a country. As a result of globalization, there is a stiff competition in the industry for producing quality products with reduced cost. The key element for achieving high quality and low cost product is parameter design. Through parameter design, optimum level of process parameters are obtained and controlled to improve the quality of both the process and the product. Sand mould casting process is considered to be the most unpredictable manufacturing process as it is associated with huge number of inter-dependant process parameters. In this study Taguchi's method of design of experiments is applied to investigate the effect of process parameters on Al7SiMg alloy casting. The influence of three types of sand mould viz. dry sand, sodium silicate sand and air set sand along with pouring temperature, amount of degasser and holding time are studied. Experimental result revealed that amount of degasser is the most significant factor for improving density and quality index in Al7SiMg alloy castings. Based on the experimental results recommendations are made to help producing low cost quality castings.