Design and analysis of a casting die for the Artivon engine components.
Nakato, Kitimbo Elsie
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Manufacturing sector has played a peripheral role in Uganda’s market-driven growth trajectory. The share of manufacturing in GDP improved from 6.3% in 1982 to 8.4% in 1997. Thereafter, it declined to about 7 percent, this falls below the average of 11% for least developed countries (UNCTAD 2008: 7).Moreover, manufacturing activities are either of the end-product assembling type or food processing both of which are characterized by low value added manufacturing. The sector can be classified by the level of production that is to say primary, secondary, tertiary, and quaternary and quinary sector. The primary industrial sector of the economy extracts products from nature inclusive of raw materials such as food and cash crops, fish, timber and mineral ores. Secondary sector encompasses value addition in line with manufacturing, processing, and construction. Metal works and smelting, automobile production, energy utilities, engineering construction among others dominate the secondary sector (Manufacturing, n.d.). Tertiary sector largely conforms to provision of services like banking, media, and law together with Quaternary sector that executes intellectually dependent activities, libraries, scientific research, education, and information technology. Although growing, the Secondary sector is faced by a number of challenges such as high costs of electricity, strong competition from imported products and relatively high poverty levels that directly impact on the purchasing power of the domestic market. (Spate & Lear month, 2019) Metal casting processes today have become integral to manufacturing industry and can be used to create complex geometric parts with comparative ease, irrespective of the part sizing. Cast metal products are found in 90% of manufactured goods and equipment ranging from critical components for the aviation and automobile industry to home appliances and surgical equipment. The major forms of casting employed include Sand casting (use of green sand to make moulds into which the molten metal is poured and solidifies), investment casting (entails the coating of a wax pattern with refractory material, thereafter the wax is melted out forming a mould) and die casting. Die casting is one of the most economical casting processes for the 2 manufacturing of precision shaped parts facilitating mass production with premium quality, low cost and low weight (M.Sowmya1, 2014)