MSA PLANNING - A PROPOSITION OF A METHOD

Jan Rewilak

Abstract

Measurement System Analysis (MSA) is a mandatory element of quality management systems in automotive industry. Suppliers has to comply both with ISO/TS 16949 and meet customer requirements specified in APQP (Advanced Product Quality Planning), PPAP (Production Part Approval Process) and MSA manuals. <BR />Manufacturing companies (not only in automotive industry) perform MSA studies for all measuring instruments specified in Control Plans. There are variety of methods available, with gauge R&R as the most popular, to conduct assessment of capability of a measuring system. However, although the assessment has to be performed periodically, none of the above mentioned standards and manuals suggest any method for MSA planning. The paper describes a few propositions on how the problem can be resolved basing on a risk associated with each measurement system. The first proposed method is based on simple risk analysis, which can be easily run together with developing a Control Plan. It uses process capability index (required orachieved) and characteristics impact on product/process function for making a decision on MSA frequency and scope. <BR />The second method assumes that a process FMEA (Failure Mode and Effects Analysis) is developed. The methoduses performed FMEA to establish priorities for MSA. Basing on the priorities, frequency and scope of MSA can be planned.

Keywords

MSA, GR&R, APQP, FMEA

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IMEKO-TC14-2013-18.pdf

DOI

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IMEKO TC

TC14 - Measurement of Geometrical Quantities

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