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Research on product reliability improvement by using DMAIC process A case study of cold cathode fluorescent lamp

Research on product reliability improvement by using DMAIC process A case study of cold cathode... Purpose – Define, measure, analyze, improve and control (DMAIC) and define, measure, analyze, design and verify (DMADV) are two Six Sigma methodologies that improve quality in a process or product. In general, if the product design improvement in reliability cannot satisfy the failure‐free performance of Six Sigma, the DMADV process is used to create or redesign new product designs. However, the original function may be affected, and the product development cycle time may be enhanced due to a redesigned process. This paper aims to propose a new procedure to combine the reliability parameter and critical to quality (CTQ) to improve a product's reliability and to reduce the number of engineering changes without redesigning. Design/methodology/approach – The study influences the failure parameter to find out the mean time to failure (MTTF) tree and utilizes the DMAIC process for improvement. It is important to maintain the function while improving time. This study looks at a cold cathode fluorescent lamp (CCFL) case. Findings – The CCFL case uses the DMAIC process finds that important root cause improvement can increase MTTF twofold. Originality/value – The paper provides useful information on product reliability improvement using the DMAIC process. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Asian Journal on Quality Emerald Publishing

Research on product reliability improvement by using DMAIC process A case study of cold cathode fluorescent lamp

Asian Journal on Quality , Volume 13 (1): 10 – Jun 15, 2012

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Publisher
Emerald Publishing
Copyright
Copyright © 2012 Emerald Group Publishing Limited. All rights reserved.
ISSN
1598-2688
DOI
10.1108/15982681211237833
Publisher site
See Article on Publisher Site

Abstract

Purpose – Define, measure, analyze, improve and control (DMAIC) and define, measure, analyze, design and verify (DMADV) are two Six Sigma methodologies that improve quality in a process or product. In general, if the product design improvement in reliability cannot satisfy the failure‐free performance of Six Sigma, the DMADV process is used to create or redesign new product designs. However, the original function may be affected, and the product development cycle time may be enhanced due to a redesigned process. This paper aims to propose a new procedure to combine the reliability parameter and critical to quality (CTQ) to improve a product's reliability and to reduce the number of engineering changes without redesigning. Design/methodology/approach – The study influences the failure parameter to find out the mean time to failure (MTTF) tree and utilizes the DMAIC process for improvement. It is important to maintain the function while improving time. This study looks at a cold cathode fluorescent lamp (CCFL) case. Findings – The CCFL case uses the DMAIC process finds that important root cause improvement can increase MTTF twofold. Originality/value – The paper provides useful information on product reliability improvement using the DMAIC process.

Journal

Asian Journal on QualityEmerald Publishing

Published: Jun 15, 2012

Keywords: Reliability improvement; Product reliability; Reliability management; DMADV; DMAIC; MTTF; Six Sigma; Cold‐cathode tubes

References