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KCI 등재
비정규 분포 특성을 갖는 공정에서 극소 불량률 관리를 위한 BurrZP관리도 설계
On the Design of BurrZP Control Chart for Very Small Fraction of Nonconforming under Non-normal Distribution Process
최성원 ( Seong-won Choi ) , 김창수 ( Chang-soo Kim )
UCI I410-ECN-0102-2021-500-000923814

Along with the development of various engineering technologies, the recent manufacturing technology and statistical quality control technology have made much progress. Statistical quality management technology is being researched to maintain and manage the quality of parts per million (PPM) level to satisfy the needs of customers. Among them, control chart is a technique to monitor the variation of various quality parameters. In particular, the defective rate control chart for monitoring fraction of nonconforming has a problem in that too many samples are required when fraction of nonconforming decreases to the PPM level. To solve this problem, there are various methods such as acceptance control chart, but it also has a limitation that it can be used only when the quality parameter is normally distributed. In this paper, we propose a method to manage the minimum defect rate of PPM level in the process where the quality parameter has non-normal distribution characteristics. First, we apply the ZP statistic that can represent the minimum defect rate with a small number of samples. Also, BurrZP distribution is suggested by using Burr distribution that can fit most single-probability distribution. And BurrZP distribution is used to show the performance of BurrZP control chart using 3 sigma control chart method.

1. 서 론
2. Z<sub>P</sub> 관리도
3. Burr 분포
4. Burr<sub>ZP</sub> 관리도 설계
5. Burr<sub>ZP</sub> 관리도의 수행도 평가
6. 결 론
References
Appendix
[자료제공 : 네이버학술정보]
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