Course Details
Subject {L-T-P / C} : ME3231 : Metrology, Quality Control and Reliability { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Chandan Kumar Biswas
Syllabus
METROLOGY: Line and End Standards, Principles of Measurements, Calibration, Accuracy and Precision Measurement of Surface Roughness, Screw, Thread and Gears Limits, Fits and Gauges, Assembly by full, partial and group interchangeability, geometric tolerances
QUALITY ASSURANCE:
Some useful Probability Distribution, testing of hypothesis, type I and type II errors, control limit theorem. Causes of Variation, standard error of mean, process capability, PCR, RPI, Natural tolerance Limits, Specification Limits, Trial and Revised Control Limits, Rational subgroups, Control charts for variables (X-bar, R, S), Control charts for fraction non-conforming, control charts for non-conformation.
Design of single sampling plan. Double, OC curve, AOQ, AOQL, ATI, AFI, ASN MIL-STD 105D tables, switching rules.
RELIABILITY:
Definition, bath-tub-curve, system reliability, reliability improvement, maintainability and availability, Availability of single repairable system, Life tests, Acceptance sampling plan based on life tests, Sequential acceptance sampling plan based on MTTF.
Course Objectives
- To impart to student’s knowledge of measurement of product dimensional features
- To update the students, the knowledge of statistical process control and its application in industry
- To prepare the students with knowledge necessary to design acceptance control procedure
- To complete the requirement of body of knowledge required for Mechanical Engineers
Course Outcomes
1. Apply Measurement techniques for Surface Roughness, Screw, Thread and Gears <br />2. Design the product dimensional tolerance. <br />3. Design X-bar, R, p and, np charts. <br />4. Select and evaluate SSP and DSP for incoming materials. <br />5. Apply system reliability evaluation methods
Essential Reading
- M. R. Taher, Metrology, Measurement and Measuring Instruments, RNLBP, Allahabad
- A. Mitra, Fundamentals of Quality Control and Improvement, PHI, New Delhi. , 2nd Edn,
Supplementary Reading
- R K Jain, Engineering metrology, Khanna Pub., New Delhi
- S Halpern, An Intro To Quality Control And Reliability, PHI, New Delhi