solar air heater technology

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