Results 261 to 270 of about 254,019 (304)

Process Capability Index: A Better Way to Assess Equipment Capability

SMTA International, 2008
ABSTRACT In the world of electronic assembly equipment, determining the true capability of the process equipment can be a daunting task to an average process engineer. While various customers have certain expectations regarding the capability of supplied equipment, there is no specific existing industry standard ...
Rita Mohanty, Daryl Santos
openaire   +1 more source

Fuzzy confidence regions for the Taguchi capability index

International Journal of Systems Science, 2011
Most of the traditional methods for assessing the capability of manufacturing processes are dealing with crisp quality. In quality control, such as other statistical problems, we may confront imprecise concepts. One case is a situation in which specification limits (SLs) are imprecise.
Zeinab Ramezani, Abbas Parchami, Mashaallah Mashinchi   +2 more
openaire   +1 more source

Distributions of the Estimated Process Capability Index Cpk

Economic Quality Control, 2003
Summary: Process capability indices \(C_{p}\) and \(C_{pk}\) have been widely used to provide numerical measures on process potential and process performance. While \(C_{p}\) measures process variation relative to the specification tolerance, which only reflects process potential, \(C_{pk}\) considers process variation as well as process centering ...
Lin, G. H., Pearn, W. L.
openaire   +1 more source

The Locomotor Capability Index in Diagram Form

Prosthetics & Orthotics International, 2006
The Stanmore-Kingston Splat is a graphical display of the goals and achievements of amputee rehabilitation patients using the Locomotor Capability Index. The chart is in a radial polygram form with the sectors coloured and shaded. Three scores can be shown: The patient's capability at delivery of the prosthesis, the goals set for rehabilitation, and ...
Tom, Geake, Rajiv, Hanspal, David, Wertheim, Jennifer, Fulton   +3 more
openaire   +2 more sources

Robust Estimation of Capability Index

2016
The process capability indices (PCI) have been popular in the manufacturing environment to quantify the capability of an industrial process. In this paper, a robust estimator of the \(C_p\) index, based on the Gini mean difference statistic, is proposed.
Syed Ejaz Ahmed, Abdulkadir Hussein, R. Ghori   +2 more
openaire   +1 more source

The process-oriented multivariate capability index

International Journal of Production Research, 2005
Recent literature has proposed multivariate capability indices, but does not suggest a method for measuring quality characteristics in a way that links production irregularities directly to their causes. Our objective is to present a new approach to multivariate capability indices that uses process-oriented basis representation (POBREP) which allows ...
E.J. Foster *, R.R. Barton, N. Gautam, L.T. Truss, J.D. Tew   +4 more
openaire   +1 more source

Structured Indexing of Process Capability Data

Volume 3: 7th Design for Manufacturing Conference, 2002
Process capability data can aid a design through ensuring the part tolerances are achievable with the current manufacturing capability. Many companies want to store process capability data in databases to make it available to all engineers. The success of a process capability database is highly dependent on the design of its structure and a method to ...
Daniel Kern, Anna Thornton
openaire   +1 more source

A fraction defective based capability index

Quality and Reliability Engineering International, 2001
AbstractTwo problems greatly affect the use of capability indices such as $C_p$, $C_{pk}$ and $C_{pkm}$: the lack of affinity with the process fraction defective π and the difficulty of dealing with the sampling distributions of their natural estimators.
Wagner de Souza Borges, Linda Lee Ho
openaire   +1 more source

A Bayesian estimator of process capability index

Journal of Statistics and Management Systems, 2006
Abstract Process capability and process performance index studies are to assess a process relative to specification criteria. Quantification of this measurement is often reported using various indices. One such index namely Cp has been considered in this paper.
Sharad Saxena, Housila P. Singh
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On Developing Optimal Process Capability Index

International Journal of Quality & Reliability Management, 1992
The process capability indices are used to assess the ability of a process to meet the present specification limits. These indices provide an easily understood qualification of a process performance. A fixed value for an ongoing process capability index is generally used. Minimization of statistical process control costs can be achieved by selecting an
Abdul Raouf, Zulfiqar Ali
openaire   +1 more source