SKIN PANEL PPT

1. SUBMITTED BY:-
Nishant Kumar (13162028)
Pawan Beniwal (13162037)

3. Raw material used
STEEL, produced from mined iron ore, the base raw
material, is perhaps the most widely used component
in auto manufacturing.

4. What is SKIN PANEL ?
SKIN PANEL is a visual outer
body of a vehicle majorly
CABIN parts……
Proper metal finished
skin panels are very important
for good ASTHETIC LOOK of
a vehicle…….

5. DOST

6. Manufacturing of Skin Panel
Skin panels are manufactured with the help of stamping dies.
. The dies can be for manual loading press, tandem press
lines with robots, transfer lines or coil feed high speed
blanking lines.But in Ashok leyland tandem press lines with
robots is used.
The machine
used in this
press line if of
FAGOR
company. It
presses the
skin panel at
670 KN .

8.  Basically DOST model has 14 SKIN
PANELS.
 Each panel is identified by a Part
No.
 All panels are stamped(pressed) in
ASHOK LEYLAND press shop.
 Sheet metal thickness ranges from
0.7mm to 1.6mm.
INTRODUCTION

9. The 14 skin panels of DOST are
1) Door outer RH
2) Door outer LH
3) Door inner RH
4) Door inner LH
5) Roof
6) Floor
7) Front Panel
8) Sill outer RH
9) Sill outer LH
10) Corner Panel RH
11) Corner Panel LH
12) Back Panel
13) B Pillar RH
14) B Pillar LH

10. Front panel of DOST

11. Left hand door of DOST

12. INSPECTION OF SKIN PANEL
1. Visual inspection is popular way of inspecting skin panels.
2. Manually inspecting by wearing inspection Gloves
3. CMM is used in some critical areas
4. Oil stoning the panel with Oil stone.
MAJOR DEFECTS ON SKIN PANEL
1. DENTS : Dent refers to
shallow deformation on
the surface of a panel or
object.
Reason :
1. Due to some dust &
foreign particles on die
surface.
2. Rarely during loading
and unloading of
panel.
DENTS MARK

13. 2. PEAKS : Peak refers
to a high point on the
surface of a panel or
object.
Reason :
1. Dust & foreign
particles on die
surface.
2. During loading &
unloading of panel. PEAKS MARK

14. 3.WRINKLE :
• Wrinkle refers to waviness
formed on surface of panel.
• Wrinkle can also be known
as high and low areas.
Reason :
1. Low cushion pressure.
2. Varying Cylinder forces.
4.WELDING DAMAGE :
Welding damage means spot damage.
which may damage the channel, flange.
Reason :
1. Due to mislocation.
2. Urgency.
3. Due to Child part defect.
4. Weld burning, blackening.

15. 5. CRACKS :Crack is a
thin & narrow opening in
a flat,
solid material.
Before crack THINNING
occurs.
Reason :
1. Due to more
holding, blanking
pressure.
2. Slug mark.

16. Tools used for inspection
1. HanThe most important tool for inspection is OIL STONE.
2. d Gloves.
3. Taper Scale.
4. Pin point micrometer.
5. Vernier Caliper.
6. CMM(Coordinate Measuring Machine).
7. Flash light.
OIL STONE VERNIER CALIPER TAPER SCALE