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Casting Negotiation (Rainbow Co. – Sunshine Co.)

Author(s): Rong Kang, Nona Jones

Citation: Rong Kang, Nona Jones, (2012) "Casting Negotiation (Rainbow Co. – Sunshine Co.)," Vol. 6, Iss. 1, pp. 108 - 116

Article Type: Research paper

Publisher: North American Business Press


This case focuses on casting, the metal rough part of a machine tool. A casting is made by first pouring
melting liquid metal in moulds. As this liquid is cooling off, it goes through post treatment such as cleanup
and burnishing, after which a casting of a certain shape and size is formed. The casting, in its various
kinds and diversified shapes, represents the largest quantity of parts in terms of usage. As further
evidence of their importance, casting parts account for 60-70% of the total weight of the machine tool.
The quality of a casting may be affected by a number of factors, including the design technique, the
casting technique, the quality of the rough material used in casting, and the process of operation. Any
assessment of the overall quality of a casting has to take into account the exterior and interior quality, as
these both can affect the overall features of the machine tool. For example, the wearing quality and
dimension stability affect the accuracy of machine tool products directly. Hence, it is important to
monitor the quality of a casting production.