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statistical data reduction

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260233
EISBN: 978-1-62708-336-2
... stabilize the process and reduce the variability. However, it is not satisfactory just to meet requirements; further reduction of variability usually leads to a lower cost of quality and an enhanced competitive position. The design of experiments can be employed in conjunction with statistical process...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440243
EISBN: 978-1-62708-262-4
... rely on the science of statistics: the collection and classification of facts from which conclusions can be drawn with a given degree of certainty. Statistics may be used to analyze such data as obtained in coin tossing, throwing dice, measuring dimensions, or the hardness of parts after heat treating...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060001
EISBN: 978-1-62708-355-3
... and the repeatability of the test. The results of tests on each sample of material may be stored in a database for future use. The database allows a wide range of analyses to be performed using statistical methods to correlate the mechanical-properties data with other information about the material. For example...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200206
EISBN: 978-1-62708-354-6
... process variables ( 2 ) Variation can be measured and characterized in several ways using the methods of descriptive statistics. One of the more useful books available is the “Manual on Presentation of Data and Control Chart Analysis” provided by ASTM ( 7 ). While describing several tabular...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110666
EISBN: 978-1-62708-247-1
... to an experimental design (in a general sense) over parameter variation. In such an experiment, the intent is to observe effects as one or more process variables are changed, DoE is a statistical methodology that efficiently allows planning experiments so that resulting data can be profitably analyzed to yield valid...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.t59380163
EISBN: 978-1-62708-456-7
... In-process inspection and testing Final testing If these factors are incorporated into the heat treating operation, together with proper methods of statistical analysis of evaluation, quality can be ensured. Hardness Tests Hardness is the most widely used test to control heat treatment...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110506
EISBN: 978-1-62708-247-1
... to add a limited amount of cost to production test in order to make yield enhancement more efficient through statistical data collection. Several other areas of data sampling may be added. For example, a limit on the total test time overhead added by the data collection is useful. The data collection...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720293
EISBN: 978-1-62708-305-8
... to microcomputers for data recording and statistical analysis to meet the requirements of statistical process control. Laser methods of measurement using beam displacement or time-lapse techniques are available for use in machine shops where accurate measurement is required for control of automatic machining...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110634
EISBN: 978-1-62708-247-1
...] . Improved coverage can also be achieved by combining N-detect pattern generation with physically adjacent areas [49] . Another ermerging trend is the use of statistical methods to optimized the testing process [21] - [24] , [50] - [52] . For example, parametric data can be collected during wafer test...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940233
EISBN: 978-1-62708-302-7
..., and the pairwise values of E and I ex along the experimental polarization curve, and use mathematical techniques to determine the values of I corr , β ox,M , and β red,X , which provide the best fit of Eq 6.5 to the experimental data. Statistical methods are used to determine the goodness of fit. The corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540383
EISBN: 978-1-62708-309-6
... data requirements and solution times without sacrificing required accuracy. Numerous techniques have been proposed and are available in the literature. The statistic-based root mean square (rms) method, though not a cycle reduction/condensation routine, has proved effective in working with some random...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030360
EISBN: 978-1-62708-282-2
... Abstract This chapter concentrates almost exclusively on inspection techniques related to pressure vessels and pipework. The discussion covers the general aspects associated with inspection and the key factors relevant to it. In addition, the chapter addresses processes involved in data...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250139
EISBN: 978-1-62708-345-4
... production Repeatability and uniformity of part features and dimensions Production of multilevel gears Close control of density or, conversely, porosity to suit a particular application Reduction or elimination of secondary operations Improved surface finishes on gear teeth by reducing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940451
EISBN: 978-1-62708-302-7
... Measurements • G 8, Test Methods for Cathodic Disbonding of Pipeline Coatings • G 15, Terminology Relating to Corrosion and Corrosion Testing • G 16, Guide for Applying Statistics to Analysis of Corrosion Data • G 19, Test Method for Disbonding Characteristics of Pipeline Coating by Direct Soil...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940087
EISBN: 978-1-62708-302-7
... of electrode reactions, η could be expressed in the form: (Eq 3.2) η = A + B log i where A and B are constants ( Ref 1 ). It is shown subsequently that simple electrode-kinetics theory leads to the following equations for the oxidation and reduction half-cell reactions, respectively: (Eq...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170242
EISBN: 978-1-62708-297-6
... with manganese content for austenitic manganese steel containing 1.15% C. Data are for castings weighing 3.6 to 4.5 kg (8 to 10 lb) and about 25 mm (1 in.) in section size that were water quenched from 1040 to 1095 °C (1900 to 2000 °F). Flow under impact is the total reduction in height sustained...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110101
EISBN: 978-1-62708-247-1
... BIST. A typical diagnosis system requires a gate level representation of the design, ATPG test patterns, and fail data from the tester. In addition to scan ATPG tests, functional tests may be used for screening manufacturing defects. A snap-shot of observable scan cells or scan-dump can be captured...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490001
EISBN: 978-1-62708-340-9
..., maintenance procedures, and operating procedures. The data and methodologies needed for life extension are the same as those needed for optimizing these factors. It should therefore be recognized at the outset that development of techniques for life assessment is more enduring in value and broader in purpose...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050281
EISBN: 978-1-62708-311-9
..., with the goal of developing fundamental quality systems that provide for continuous improvement. Defect prevention is emphasized, along with a reduction of variation and waste in the supply chain. Quality System 9000, ISO/TS 16949, or new versions of ISO 9000 define the fundamental QS-expectations. In addition...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240243
EISBN: 978-1-62708-251-8
... in a high-strength steel part As previously mentioned, much of the fatigue data in the literature has been determined for completely reversed bending with σ m = 0. However, the effects of mean stress are important, and an increase in mean stress will always cause a reduction in the fatigue life...