Structured problem solving: combined approach using 8d and six sigma case study

Sharma Mithun, Sharma Shilpi () and Sahni Sanjeev
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Sharma Mithun: O.P. Jindal Global University, JindalIndia
Sharma Shilpi: O.P. Jindal Global University, JindalIndia
Sahni Sanjeev: O.P. Jindal Global University, JindalIndia

Engineering Management in Production and Services, 2020, vol. 12, issue 1, 57-69

Abstract: The current research study aimed to explore the utility of selected problem-solving tools and techniques in root-cause analysis to demonstrate their practical application. An experimental research design adopting a positivist empirical approach with a deductive strategy was followed to assess the effectiveness of a combined (8D & Six Sigma) problem-solving approach in reducing a high defects rate of a mixer shower assembly line. A novel application of the 8D framework in combination with Six Sigma and other analytical tools was found highly effective in reducing the reject rate from 11.84% to 0.11%. Successful identification of the root cause led to the implementation of permanent corrective action ensuring a long-term stable assembly process. The research study provided a problem-solving framework that was found effective in resolving a complex problem and implementing long-term corrective action in an assembly production line. However, this framework can be used in other industries. The research study provides a solution to a high number of leak rejects in a sub-assembly where "O-seals" are used between mating parts. It also provides analytical tools that were found highly effective during the problem-solving process.

Keywords: 8D; Six Sigma; Structured Problem Solving; customer complaints; defect reduction (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:vrs:ecoman:v:12:y:2020:i:1:p:57-69:n:5

DOI: 10.2478/emj-2020-0005

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