An economic selective assembly procedure for two mating components

An economic selective assembly procedure for two mating components

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Article ID: iaor20002019
Country: South Korea
Volume: 24
Issue: 1
Start Page Number: 39
End Page Number: 48
Publication Date: Mar 1999
Journal: Journal of the Korean ORMS Society
Authors: ,
Keywords: quality & reliability, engineering
Abstract:

An economic procedure of selective assembly is proposed when a product is composed of two mating components. The major quality characteristic of the product is the clearance between the two components. The components are divided into several classes prior to assembly. The component characteristics are assumed to be independently and normally distributed with equal variance. The procedure is designed so that the proportions of both components in their corresponding classes are the same. A cost model is developed based on a quadratic loss function and methods of obtaining the optimal class limits as well as the optimal number of classes are provided. Formulas for obtaining the proportion of rejection and the unavailability of mating components are also provided. The proposed model is compared with the equal width and the equal area partitioning methods using a numerical example.

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