1.BASIC HULL PROCESS OF SHIPS AND QUALITY TESTING AND INSPECTION 2.QUALITY PROCEDURES OF HULL AND ENTIRE SHIP 3.ESPECIALLY PIPES AND ITS PRESSURES USING RADIOGRAPHIC TESTING AND DYE PENETRANT TESTING 4.MACHINES USED IN HULL SHOP 5.CNC CUTTING MACHINES 6.2OOO TON HYDRUALLIC PRESS ETC.....

1. A PRESENTATION ON
PROCESS,
QUALITY AND INSPECTION OF
HULL BODY OF SHIPS
B. Yasoda Kumar.
Regd. No:1210912205

2. HULL SHOP
• “HULL” is the basic body frame of the
ship.
• The whole hull of the ship is divided into
Blocks
• These Blocks consists of Elements such
as Sections, Collars, Plates, Brackets.

4. TYPES OF PLATES, SECTIONS
USED IN HULL OF A SHIP.

5. PLASMA CUTTING MACHINE

6. PLASMA CUTTING MACHINE
• It has the flexibility to cut complicated
shapes.
• It has linear, transverse, rotary and
curvilinear motions
• The software used for writing this
programs is “TURBEN”.

7. PLASMA CUTTING MACHINE
• It is used for cutting plates at desired
shape, Size.
• The plasma is fully automated which runs
on the program that are pre-stored in the
floppy disk/pen drive.
• This machine used for profile marking
and cutting of plates
• It consists dual torch plasma and oxy
acetylene for cutting plates.

8. CNC GAS CUTTING MACHINE
• It is fully automated gas cutting machine.
• The gas used in this machine is oxy-
acetylene(compressed air + LPG gas).
• Skipping of current operation/ work is
possible using a clutch which is operated
manually.
• Coolers and chillers are not used, for
dissipating of heat fins are used.

9. CNC GAS CUTTING MACHINE

10. 2000 TON HYDRAULIC PRESS
• The operations performed by this roller
is plate rolling, curve bending of plates.
• This hydraulic press is used to rolling
of plates at a pressure of 2000 tons.
• To get the desired shapes of the hull.

11. 2000 TON HYDRAULLIC PRESS

12. QUALITY AND INSPECTION
• The standard of something as measured
against other things of a similar kind.
• In this industry they follow quality of
ISO:9001-2008
• It is first ISO 9001 Ship Building
company in INDIA

13. QUALITY PROCEDURES
• Non Destructive Testing (NDT)
• It is also called as Non Destructive
Examination (NDE)
• Its is highly valuable Technique
• It can save both money and time

14. NON DESTRUCTIVE TESTING
• Common NDT methods include :
• ULTRASONIC
• MAGNETIC PARTICLE
• LIQUID/DYE PENETRANT
• REMOTE VISUAL INSPECTION
• EDDY-CURRENT TESTING
• RADIOGRAPHIC TESTING

15. LIQUID PENETRANT INSPECTION
• It is done in six stages.
• It is also called Dye Penetrant Inspection.
• It is widely applied and low cost.
• It is used to locate surface breaking
defects in all porous materials (Metals,
plastic’s, ceramic’s).
• It is used to detect casting, forging and
welding, surface defects.

16. 1.PRE-CLEANING
• The test surface is used to remove oils,
paints, dirt, grease.
• Cleaning methods may include
Solvents, alkaline cleaning steps,
Vapor degreasing, or Media blasting.

17. 2.APPLICATION OF PENETRANT
• It is applied to the surface of the item is
to be tested.
• The penetrant is allowed “dwell time”
• To soak into any flaws.

18. 3. EXCESS PENETRANT REMOVAL
• Solvent remover is used to remove the
excess penetrant.
• Like Water washable liphophilic, post
emulsifiable etc
• They chemically interact with oily
penetrant to make it removable.

19. 4.APPLICATION OF DEVELOPER
• A Developer is applied to the sample
• Several types like Non aqueous wet
developer, Dry powder.
• Choice of developer is governed by
penetrant compatibility.

20. 5.INSPECTION
• He uses a visible light with adequate
intensity(100 foot candles)
• Ultraviolet (UV-A) of adequate intensity
(1000 mw per centimeter square)
• Inspection of test surface takes 10-30
minutes for development time.
• It allows blotting action to occur on the
surface.

21. INSPECTION
• The sample is indication formation
using visible dye.

22. 6.POST CLEANING
• The test surface is often cleaned for
recording of defects.
• If post inspections are scheduled.

23. 2.RADIOGRAPHIC TESTING
• It is also called industrial radiography.
• It is used for inspecting hidden flaws by
using the ability of the short wavelengths
electromagnetic radiation to penetrate
various materials.
• Either an X-ray machine or a Radio
active source, like Ir-192, Co-60.

24. RADIOGRAPHIC TESTING
• Neutron radiographic testing is a variant
of radiographic testing uses neutrons
instead of photons.
• It is different because it cannot pass
through the water, oil, plastic.
• It can pass through the steel, lead.

25. THANK YOU