Title: Measurement system analysis for implementing design for Six Sigma

Authors: Ashok Sarkar; Arup Ranjan Mukhopadhyay; Sadhan Kumar Ghosh

Addresses: SQC & OR Unit, Indian Statistical Institute, Room No. 320, Old C.G.O. Buildings, 110 Maharshi Karve Road, Mumbai, 400020, India ' SQC & OR Unit, Indian Statistical Institute, 203 B T Road, Kolkata, 700108, India ' Department of Mechanical Engineering, Jadavpur University, Kolkata 700032, India

Abstract: The measurement system is unacceptable, if gage R&R is > 30%. However, when, products that remain under development, the inconsistency that exists is due to 'repeatability' as well as product inconsistency. Secondly, the complete range of the product will not be tested for consistency. To take care of the repeatability problem by separating out the product consistency aspects from the measurement system, it is replaced with a simulated equivalent. This simulated equivalent has excellent consistency and consequently yields dependable results. In this paper, the authors discuss the problem through one case example along with the associated remedial measures.

Keywords: measurement system analysis; MSA; gauge repeatability; gauge reproducibility; gauge R&R; milli-volt test; mould case circuit breaker; MCCB; design for six sigma; Pugh matrix; simulation.

DOI: 10.1504/IJPQM.2014.064811

International Journal of Productivity and Quality Management, 2014 Vol.14 No.3, pp.373 - 386

Available online: 16 Sep 2014 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article