Minimizing manufacturing costs for thin injection molded plastic components |
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Authors: | J.K.L. Ho K.F. Chu C.K. Mok |
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Affiliation: | (1) Department of Manufacturing Engineering & Engineering Management, City University of Hong Kong, P.R. China |
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Abstract: | Minimizing the cost of manufacturing a plastic component is very important in the highly competitive plastic injection molding industry. The current approach of R&D work focuses on optimizing the dimensions of the plastic component, particularly in reducing the thickness of the component during product design, the first phase of manufacturing, in order to minimize the manufacturing cost. This approach treats the component dimensions established in the product design phase as the given input, and uses optimization techniques to reduce the manufacturing cost of mold design and molding for producing the component. In most cases, the current approach provides the correct solution for minimizing the manufacturing cost. However, when the approach is applied to a thin component, typically when miniaturizing products, it has problems finding the true minimum manufacturing cost. This paper analyses the shortcomings of the current approach for handling thin plastic components and proposes a method to overcome them. A worked example is used to illustrate the problems and compare the differences when using the current approach and the new method proposed in the paper. |
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Keywords: | Miniaturization of plastic parts Minimization of manufacturing Plastic part design and manufacturing cost |
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