3. PDCA cycle
Quality Assurance
Quality Control
Operational Considerations
Quality Assessment
Unit Outline
4. Quality Control procedures
Quality Control procedures should also cover:
Instrument calibration,
Participation in interlaboratory-comparison programs,
Computational checks,
Periodic review of procedures, specifications and operating
records,
Observation of operations and evaluation of quality control
data,
7. Micrometer
The scale can be read
directly to 0.01mm, as
shown above, but may
also be estimated to
0.001mm when the
lines are nearly
coincident because the
line thickness is 1/5 of
the spacing between
them
8. Dial Gauge
• Dial gauge or dial indicators are
used for checking flatness of
surfaces and parallelism of bar
and rods.
• They are also used for testing the
machine tools and linear
dimensions of jobs.
• The dial is divided into 100 equal
divisions, each division
represents a spindle movement
of 0.01mm.
10. Feeler Gauge
• Made with hardened
alloy steel.
• It is used to measure the
gap in a part.
11. Slip Gauges
• It is a rectangular block made with hardened
steel, and is also known as gauge block.
• The rectangular blocks are 9mm*30mm in size
upto 10mm length.
• The process of blocks adhere is called wringing.
12. Angle plate
• An angle gauge is a
hardened steel block
approx 75mm long
16mm wide.
• It is largely used in
various industries for
clamping and holding
work in vertical position.
13. Bore Gauge
A dial or vernier bore gauge
measures a bore directly.
The gauge has three symmetrical
anvils that protrude from the
gauge body that are connected to
the dial or micrometer
mechanism.
As the knob is rotated it moves
the anvils in or out with respect
to the measurements. The knob
usually has a slipping mechanism
to take the feel out of the device
and increase reliability between
measurements.
Its least count is 0.01mm
14. Callipers (outside)
• Used to measure
external size of an
object
• Made of high carbon
steel
• Carbon is maximum
upto 2.0 (Acc to Fe-C
Diagram)
15. Callipers (Inside)
• Used to measure
internal size if object
• The upper calliper is
manually adjusted
and the lower one
contains adjusting
screw
17. PROJECT WORK
• BRAKE PEDAL LOCK NOT WORKING
• REAR COVER MOUNTING COVER LOOSE
• WATER SEPARATOR BANJO LEAKAGE
• LEAKAGE FROM THE HYDRAULIC DELIVERY PIPE
ADOPTER
• BRAKE SWITCH SPRING MOUNTING MISSING
• REAR FENDER LIGHT MOUNTING SURFACE ON REAR
FENDER FOUND UNEVEN RESULTING GAP B/W REAR
FENDER LIGHT & FENDER
18. Problem:Brake pedal locknot working
Root Cause:
• One pedal offset after welding.
• Due to arrangement of handling.
Action taken:
• Inspection of welding from supplier end.
• Proper handling starts.
19. Problem:WaterseparatorBanjoleakage.
Root Cause: Water separator Banjo
Torque found less. It is basically
operator fault.
• Required torque: 22-27 Nm
• Observed torque: 11-13 Nm
Action taken:Banjo retightened at
defined torque
• Spot facing starts at HMS ( Heavy
machine shop)
20. Problem:Leakagefrom hydraulicdelivery
pipeadopter.
• Root Cause: Metallic chips
found in O ring groove resting
area, due to chips O ring
damaged and resulting leakage
from adopter face.
• Action taken: Washing starts
inside the company.
22. Problem: Rear fender light mountingsurface on rear fender found
uneven in Baagban DI-30 resultingafter tightening,gap observed
between fender and fender light.Fender surface uneven
• Root Cause: : Rear fender
light mounting surface on rear
fender is uneven
• Action taken: Inspection
starts from supplier end.
23. Problem:Rearcovermountingboltloose.
Root Cause:
• Extra casting near mounting area due to less approach for
tightening nut on stud.
• Mounting hole shifted toward the fillet area, seems to be core
shifted
Action taken:
• Spot facing starts at HMS ( Heavy machine shop)