Quality control chart design under jidoka
Date
2009Source Title
Naval Research Logistics
Print ISSN
0894-069X
Publisher
John Wiley & Sons, Inc.
Volume
56
Issue
5
Pages
465 - 477
Language
English
Type
ArticleItem Usage Stats
160
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views
282
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downloads
Abstract
We consider design of control charts in the presence of machine stoppages that are exogenously imposed (as under jidoka practices). Each stoppage creates an opportunity for inspection/repair at reduced cost. We first model a single machine facing opportunities arriving according to a Poisson process, develop the expressions for its operating characteristics and construct the optimization problem for economic design of a control chart. We, then, consider the multiple machine setting where individual machine stoppages may create inspection/repair opportunities for other machines. We develop exact expressions for the cases when all machines are either opportunity-takers or not. On the basis of an approximation for the all-taker case, we then propose an approximate model for the mixed case. In a numerical study, we examine the opportunity taking behavior of machines in both single and multiple machine settings and the impact of such practices on the design of an X̄ - Q C chart. Our findings indicate that incorporating inspection/repair opportunities into QC chart design may provide considerable cost savings.
Keywords
Control chart designJidoka process control
Opportunistic inspection
Statistical process control
Approximate model
C chart
Control chart design
Control charts
Cost saving
Economic design
Jidoka process control
Multiple machine
Numerical studies
Operating characteristics
Opportunistic inspection
Optimization problems
Poisson process
Quality control charts
Reduced cost
Single machines
Flowcharting
Machine design
Poisson distribution
Quality assurance
Quality control
Quality function deployment
Surface treatment
Total quality management
Statistical process control
Permalink
http://hdl.handle.net/11693/22673Published Version (Please cite this version)
http://dx.doi.org/10.1002/nav.20357Collections
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