Reliability-oriented product manufacturing quality improvement approach based on R-KQC and DMAIC

ABSTRACT

Reliability-oriented product quality improvement is of great significance to assurance the fitness of quality control and management activities in the manufacturing process. A novel reliability-oriented product manufacturing quality improvement approach based on DMAIC (i.e. define, measure, analysis, improvement, control) and driven by reliability-oriented key quality characteristic (R-KQC) is proposed to prevent reliability degradation and improve product fitness quality in the manufacturing process. First, with the manufacturing reliability based on RQR chain taken into consideration, the connotation of R-KQC is defined. Second, a reliability-oriented DMAIC process driven by R-KQC is proposed. The R-KQC identification method based on feature selection and Shaply additive explanations (SHAP) is proposed. In order to improve the quality of manufacturing process effectively, R-KQC improvement method of response surface and R-KQC control method based on time-between-events (TBE) control chart are proposed. Finally, an illustrated example of an insulating base is provided to verify the effectiveness of the proposed approach, the average failure rate of the latest batch is reduced by 37.8%.

KEYWORDS:

• Manufacturing process
• quality improvement
• reliability assurance
• DMAIC
• key quality characteristics

Acknowledgements

This study was supported by the National Natural Science Foundation of China (Grant Nos. 72071007).

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [72071007].

Notes on contributors

Jishan Zhang

Jishan Zhang is a postgraduate student at the School of Reliability and Systems Engineering, Beihang University in People’s Republic of China. His main research interests are quality and reliability assurance in production.

Yihai He

Yihai He is a professor at the School of Reliability and Systems Engineering, Beihang University in People’s Republic of China, he received his PH.D degree from Beihang University in 2006. His main research interests are reliability in manufacturing, advanced quality engineering techniques and production systems engineering, he has published over 100 papers on international journals and conferences including Quality and Reliability Engineering International, Total Quality Management & Business Excellence, International Journal of Production Research and etc. His homepage is: http://qpr.buaa.edu.cn.

Xin Zheng

Xin Zheng is a postgraduate student at the School of Reliability and Systems Engineering, Beihang University in People’s Republic of China. His main research interests are build-in-quality technology for production.