Modern Methods For Quality Control and

This is a revision of a classic! This text provides a single source for information on both the structure and management of quality systems and the use of statistics to control and improve quality. It incorporates an international flavor and a good balance of services and manufacturing coverage. The goal of the second edition remains the same as the first edition - to promote learning by means of practical, effective applications intended to develop, control, and improve quality systems and processes.

Harrison M. Wadsworth and Kenneth S. Stephens are the authors of Modern Methods For Quality Control and Improvement, 2nd Edition, published by Wiley.

PART 1 INTRODUCTION AND QUALITY MANAGEMENT

History and Evolution of Quality Control

1

(14)

Earliest Developments

3

(2)

Developments in the World War II Era

5

(2)

Modern Developments

7

(2)

Developments in Japan

9

(1)

Recent Developments

10

(2)

Training for Quality

12

(1)

References

13

(2)

Quality and Quality Systems

15

(40)

Quality Concepts and Related Aspects

16

(11)

Quality Control and Quality Assurance

27

(3)

Quality Management Systems

30

(4)

Elements of Quality Systems

34

(18)

References

52

(2)

Problems

54

(1)

The ISO 9000 Quality System

55

(31)

The ISO 9000 Family of Standards

55

(9)

Quality Systems Documentation and Auditing

64

(9)

ISO 9000: Related Aspects

73

(6)

Other Quality Systems

79

(5)

References

84

(1)

Problems

85

(1)

Total Quality Management

86

(39)

Introduction to Total Quality Management

87

(11)

The Evolution of Total Quality

98

(4)

The Impact of National and International Quality Awards on Total Quality Management

102

(8)

The European Quality Award

110

(3)

The Deming Application Prize

113

(2)

Comparison of National/International Quality Awards and International Standards

115

(1)

Six Sigma and Other Extensions of Total Quality Management

115

(8)

References

123

(1)

Problems

124

(1)

PART 2 STATISTICAL PROCESS CONTROL

Review of Fundamental Statistical Concepts

125

(38)

Probability

125

(4)

Frequency Distributions

129

(2)

Measurements of Central Tendency

131

(2)

Measures of Dispersion

133

(3)

Probability Distributions

136

(15)

Statistical Inference

151

(6)

Quality Control as an Area of Statistics

157

(2)

References

159

(1)

Problems

159

(4)

Introduction to Control Charts

163

(33)

Variation and the Control Chart

163

(5)

An Attribute Control Chart

168

(7)

Variables Control Charts

175

(15)

General Principles of Control Charts

190

(2)

Summary

192

(1)

References

193

(1)

Problems

193

(3)

Control Charts for Attributes

196

(25)

Detection of Changes with Attribute Charts

196

(4)

Charts for Number of Pieces Nonconforming

200

(4)

Charts for Percent Nonconforming

204

(6)

Charts for Number of Nonconformities

210

(3)

OC Curves for Attributes Control Charts

213

(3)

Summary

216

(1)

References

216

(1)

Problems

217

(4)

Control Charts for Variables

221

(37)

Detection of Changes with Variables Charts

221

(5)

Rational Subgroups: Design of Data Collection

226

(1)

Range (R) Chart

227

(3)

Standard Deviation Chart

230

(3)

Average (x) Chart

233

(6)

Median (x)

239

(3)

Midrange (M) Chart

242

(1)

Individuals (x) Chart

243

(4)

Other Variables Control Charts

247

(1)

Evaluation of Average Control Charts

248

(3)

Other Evaluations

251

(1)

Economic Design and Evaluation of Control Charts

251

(1)

Conclusions

252

(1)

References

252

(1)

Problems

253

(5)

Special Control Charts

258

(53)

Cumulative Sum Control Charts

258

(25)

The Exponentially Weighted Moving Average Control Chart

283

(3)

Modified or Reject Control Limits for x Charts

286

(9)

Acceptance Control Charts

295

(11)

References

306

(2)

Problems

308

(3)

Specifications Limits and Tolerances

311

(28)

Specification Limits and Tolerances

311

(1)

Relationship to Processes and Control Charts

312

(14)

CUSUM Charts and Specification Limits

326

(1)

Some Miscellaneous Procedures

327

(2)

Statistical Addition to Tolerances

329

(7)

References

336

(1)

Problems

337

(2)

PART 3 METHODS FOR QULAITY IMPROVEMENT

Process Control and Improvement Techniques

339

(77)

Principles, Methodologies, and Techniques

339

(5)

Quality (Process) Improvement

344

(38)

Control of Quality

382

(12)

Further Graphical Methods for Quality Improvement and Control

394

(16)

Conclusions

410

(1)

References

410

(1)

Problems

411

(5)

Industrial Experimentation

416

(35)

One-Time Experiments

417

(11)

Evolutionary Operations

428

(9)

Analysis of Means

437

(11)

Summary

448

(1)

References

448

(1)

Problems

449

(2)

Robust Design

451

(25)

The Concept of Robust Design

451

(2)

Measurement

453

(2)

Loss Functions

455

(2)

Control Variables

457

(1)

Noise Variables

457

(1)

Planned Experimentation

457

(3)

Robust Designs with Dynamic Characteristics

460

(4)

A Special Case Study

464

(9)

Summary

473

(1)

References

474

(1)

Problems

475

(1)

Reliability

476

(41)

Basic Concepts of Reliability

476

(3)

Distributions Useful in Reliability

479

(4)

Reliability Predictions

483

(6)

Reliability Estimation

489

(13)

Accelerated Life Testing

502

(3)

Reliability Monitoring and Design Considerations

505

(4)

The Body of Knowledge for Reliability Engineering

509

(5)

References

514

(1)

Problems

515

(2)

PART 4 ACCEPTANCE SAMPLING

Acceptance Sampling for Attributes

517

(37)

Sampling Risks

517

(2)

Types of Sampling Plans

519

(1)

Single Sampling

519

(13)

Double Sampling Plans

532

(7)

Sequential Sampling Plans

539

(9)

Group Sequential Plans

548

(1)

Derivation of Matched Plans

548

(3)

Summary

551

(1)

References

551

(1)

Problems

552

(2)

Attribute Sampling Tables

554

(33)

ISO 2859-1: 1999

556

(13)

The Dodge-Romig System

569

(12)

An LQL Indexed System

581

(3)

Other Attribute Acceptance Sampling Plans

584

(1)

References

584

(2)

Problems

586

(1)

Acceptance Sampling by Variables

587

(31)

Estimating Fraction Nonconforming with the Normal Distribution

588

(2)

Estimating Fraction Nonconforming When the Standard Deviation Is Known

590

(4)

Acceptance Sampling by Variables Using ANSI/ASQ Z1.9-1993 (MIL-STD 414)

594

(17)

The Graphical Method--ISO 3951

611

(4)

Testing Normality

615

(1)

Summary

615

(1)

References

616

(1)

Problems

616

(2)

Special Attribute Sampling Procedures

618

(29)

Continuous Sampling Plans---CSP

618

(13)

Skip-Lot Sampling Plans---SkSP

631

(6)

Chain Sampling Plans---ChSP

637

(6)

References

643

(2)

Problems

645

(2)

APPENDIX TABLES

647

(26)

A Areas Under the Normal Curve

648

(2)

B Percentage Points of the Chi Square (Χ2) Distribution

650

(1)

C Percentage Points of the t Distribution

651

(1)

D Percentage Points of the F Distribution

652

(5)

E Cumulative Binomial Distribution

657

(2)

F Summation of Terms of the Poisson Distribution

659

(5)

G Control Chart Factors for Central Tendency

664

(1)

H Control Chart Factors for Dispersion

665

(3)

I One-Sided Statistical Tolerance Interval, μ, σ Unknown

668

(1)

J Two-Sided Statistical Tolerance Interval, μ, σ Unknown

669

(1)

K Exact Critical Values for the Analysis of Means

670

(2)

L Factors for Acceptance Control Charts

672

(1)

Index

673

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Modern Methods For Quality Control and Improvement

Summary

Author Biography

Table of Contents

Supplemental Materials