Abstract

Quality insurance capability refers to the most important factor for quality evaluation of the production system of a certain product. Process capability index of product’s quality characteristics is the most common and effective index used to describe the product’s quality insurance capability. Mature systems have been established on and abroad on researches concerning single quality characteristics process evaluation. However, no unified authoritative theory has been confirmed today with regard to multi-quality characteristic process capability index. Under such circumstance, the paper proposed an improved process capability evaluation model based on multi-volatility multi-quality characteristics. The model adopted check computation based on cost, volatility and other characteristics. In the end, the paper made an example on the comprehensive process capability algorithm and operation with the process with which some diesel oil motor producer produces the connecting rod.

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