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INSPECTION AND
QUALITY CONTROL
SUBMITTED TO SUBMITTED BY
MR. ASHWANI SHARMA VINAY SHARMA
B.TECH (M.E) 6TH SEM
DEPT. OF MECHANICAL ENGINEERING
SHOOLINI UNIVERSITY
CONTENTS INTRODUCTION OBJECTIVE KINDS OF INSPECTIONI. FLOOR INSPECTIONII. FIXED INSPECTIONIII. KEY POINT INSPECTIONIV. FINAL INSPECTION METHODS OF INSPECTIO
INTRODUCTIONINSPECTION ACT OF CHECKING WHETHER A COMPONENT
ACTUALLY DOES ITS WORK AS DESIRE……….
CHECKING THE ACCEPTABILIT OF THE MANUFACTURED PRODUCT……
MEASURE THE QUALITY OF PRODUCT WITH PREDECIDED STANDARDS
OBJECTIVE SEPRATE DEFACTIVE COMPONENT AND THUS ENSURE
THE QUALITY OF PRODUCT
PREVENT FURTHER WORK ON SEMI FINISHED PRODUCT ALREADY DETECTED AS SPOILED
MAKES OPERATION SAFE
DETECT SOURCES OF WEAKNESS AND TROUBLE IN FINISHED PRODUCT
BUILTS UP THE REPUTATION
REDUCING NUMBER OF COMPLAINTS
FLOOR INSPECTION FIXED INSPECTION KEY POINT INSPECTION FINAL INSPECTION
KINDS OF INSPECTION
HELPS CATCHING ERRORS DURING PROCESS
SAMPLE OF WORK IS CHECKED OF VARIOUS MACHINE OPERATOR OR WORKERS
CHECKING IS DONE BEFORE THE FINAL PRODUCT IS READY
ELIMINATES CENTRALIZATION
FLOOR INSPECTION
FIXED INSPPECTION• WORK IS BROUGHT TO INSPECTOR TO
CHECK
• DISCOVERS DEFECTS AFTER THE JOB HAS BEEN COMPLETED
• WHEN INSPECTION TOOLS CAN NOT BE BROUGHT TO THE SHOP FLOOR
• SORT OF CENTRALIZED INSPECTION
KEY POINT INSPECTIONo KEY POINT IS A STAGE BEYOND WHICH
IT IS NOT CAPABLE OF REWORK
o EVERY PRODUCT HAS A KEY POINT IN ITS PROCESS OF MANUFACTURE
o IT AVOIDS FURTHER EXPENDITURE ON POOR PARTS
FINAL INSPECTION
IT CHECK ITS APPEARANCE AND PERFORMANCE
DESTRUCTIVE AND NON DESTRUCTIVE INSPECTION METHODS SUCH AS TENSILE, FATIGUE, IMPACT, TENSILE ETC.,ARE AVAILABLE FOR FINAL INSPECTION.
FINAL INSPECTION IS THE CENTRALIZED INSPECTION
METHODS OF INSPECTION Judgment Inspection
Inspection That Discovers Defects Informative Inspection
Inspection That Reduces Defects Source Inspection
Inspection That Eliminates Defects
COMMONLY USED METHODS ARE
Visual Testing
Liquid Penetrant Testing:
Magnetic Particle Testing:
Ultrasonic Testing:
Electromagnetic Testing:
Radiographic Testing:
VISUAL TESTING o inspect the surface of the material for
any indications of a discontinuity or interruption in the normal surface configuration.
Dimensional measuring and optical aid tools may be used.
Advantages: To make the best judgment for the method and technique used.
Limitations: Surface inspection only. Difficult to find small cracks.
LIQUID PENETRANT TESTING: Process: Apply a penetrating liquid to
the test material surface, Remove, Dry, Develop and the Inspect part.
Advantages: A wide variety of materials can be tested. Inspection is simple, fast and relatively economical.
Limitations: Surface flaw detection only. Part surface requires a thorough cleaning or etching.
MAGNETIC PARTICLE TESTING: Process: Magnetize part and apply iron
oxide particles to the part surface. Flaws will attract particles giving an
indication of the location of the flaws. Advantage: Surface and near subsurface
flaw detection potential and linear indication sensitivity.
Limitations: Method is restricted to a select group of ferromagnetic test materials only.
ULTRASONIC TESTING: Process: Transmit high frequency sound
waves vibrations into the test material, Sound reflections caused by flaws
produce displayed signals.
Advantages: Surface and deep subsurface flaw location detection capabilities.
Limitations: Part geometry, flaw orientation.
CONCLUSION INSPECTION IS VERY IMPORTANT
BEFORE OR AFTER MANUFACTURING THE PRODUCT OR SERVICE TO ENHANCE THE QUALITY AND GROWTH OF THAT ORGANISATION .
THANK YOU ALLTHE END