06ME666-Statistical Quality Control |
PART – A |
UNIT I: |
INTRODUCTION: The Meaning of Quality and Quality Improvement;
Brief History of Quality Methodology; Statistical Methods for Quality
Control and Improvement; Total Quality Management (quality philosophy,
links between quality and productivity, quality costs, legal aspects of quality
implementing, quality improvement).
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UNIT II: |
MODELING PROCESS QUALITY: Mean, Median, Mode, Standard
deviation, Calculating area, The Deming funnel experiment, Normal
distribution tables, Finding the Z score, Central limit theorem.
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UNIT III: |
METHODS AND PHILOSOPHY OF STATISTICAL PROCESSCONTROL: Chance and assignable causes, Statistical Basis of the Control
Charts (basic principles, choices of control limits, significance of control
limits, sample size and sampling frequency, rational subgroups, analysis of
pattern on control charts, warning limits, Average Run Length-ARL)
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UNIT IV: |
CONTROL CHARTS FOR VARIABLES: Control Charts for X-Bar and
R- Charts, Type I and Type II errors, the probability of Type II error. Simple
Numerical Problems
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PART – B |
UNIT V: |
PROCESS CAPABILITY: The foundation of process capability, Natural
Tolerance limits, cp – process capability index, cpk, pp – process performance
index, summary of process measures. Numerical problems
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UNIT VI: |
UNIT 6: Control Charts For Attributes: Binomial distribution, Poisson
distribution (from the point of view of Quality control) Control Chart for
Fraction Nonconforming, Control Chart for number Nonconforming, Control
Charts for Nonconformities or Defects, Control Chart for Number of non
conformities per unit. Numerical problems
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UNIT VII: |
LOT-BY-LOT ACCEPTANCE SAMPLING FOR ATTRIBUTES: The
acceptance sampling problem, single sampling plan for attributes, Double,
Multiple, and Sequential sampling, AOQL, LTPD, OC curves, Military
Standard 105E, the Dodge-Romig sampling plans. Numerical problems
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UNIT VIII: |
CUMULATIVE-SUM (CUSUM) & EXPONENTIALLY WEIGHTEDMOVING AVERAGE (EWMA) CONTROL CHARTS: CUSUM Control
Chart (basic principles of the chart for monitoring the process mean); EWMA
control chart (EWMA control chart for monitoring process mean), design of
an EWMA control chart.
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REFERENCE |
TEXT BOOKS: |
1. Statistical Quality Control: E.L. Grant and R.S. Leavenworth, 7th
edition, McGraw- Hill publisher.
2. Statistical Quality Control: RC Gupta, Khanna Publishers, New
Delhi, 2005
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Reference Books |
1. Statistical Process Control and Quality Improvement: Gerald M.
Smith, Pearson Prentice Hall. ISBN 0 – 13-049036-9.
2. Statistical Quality Control for Manufacturing Managers: W S
Messina, Wiley & Sons, Inc. New York, 1987
3. Statistical Quality Control: Montgomery, Douglas, 5th Edition,
John Wiley & Sons, Inc. 2005, Hoboken, NJ (ISBN 0-471-65631-3).
4. Principles of Quality Control: Jerry Banks, Wiley & Sons, Inc.
New York.
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