Product Quality Improvement Through Response Surface Methodology: A Case Study

He Zhen, Zhang Xu-tao and Xie Gui-qing
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He Zhen: Tianjin University, China
Zhang Xu-tao: Tianjin University, China
Xie Gui-qing: Tianjin University, China

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Abstract: Purpose – The paper aims to improve the key quality performance of the terminal of earphone in an electronic company. Design/methodology/approach – Sequential experimental designs are employed. Significant input variables are found trough a full factorial design. Then a response surface model is constructed considering curvature in the linear model. Findings – Optimized key input variables’ parameters are found using the response surface model. The key quality performance, coplanarity of the terminal of earphone has been improved. Research limitations/implications – Instead of running a full factorial design in the first stage, a fractional factorial may be used to reduce experimental runs. Originality/value – The methodology used in this case can be easily extended to similar cases.

Keywords: quality improvement; design of experiments; response surface methodology; central composite design; parameter optimization (search for similar items in EconPapers)
Date: 2013
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