In this presentation, you will read different types of Manufacturing methods. Advantages, disadvantages, applications are included in this presentation. Kindly have a look and like, comment for any further improvement & query.

1. UNIT-01 MANUFACTURING METHODS
Manufacturing - It is a process of
converting raw materials or parts
into finished products that fulfill our
expectations.
Prepared by:
Sandeep Bagri
M.E. department

2. UNIT-01 MANUFACTURING METHODS
There are several methods of manufacturing,
some of them are:-
 Casting
 Forming
 Machining
 Joining
 Advanced Manufacturing Methods Prepared by:
Sandeep Bagri
M.E. department

3. UNIT-01 MANUFACTURING METHODS
 Casting
• In this process, a liquid
material is poured into a mold
(having a hollow cavity of
desired shape), and then
allowed to solidify.
• Solidified part is ejected out
of the mold and it is also
known as casting.
Prepared by:
Sandeep Bagri
M.E. department

4. UNIT-01 MANUFACTURING METHODS
 Advantages of Casting process
• The size of object doesn't matter for casting.
• Casting objects have high compressive strength.
• All materials can be cast.
• Cheapest among all manufacturing processes.
Prepared by:
Sandeep Bagri
M.E. department

5. UNIT-01 MANUFACTURING METHODS
 Disadvantages of Casting process
• This process gives poor surface finish and mostly
requires surface finish operation.
• Not economical for mass production.
• Casting defects like blow holes, pinholes, hot
tear or hot crack, cold shut etc.
• Low material strength of the product.
Prepared by:
Sandeep Bagri
M.E. department

6. UNIT-01 MANUFACTURING METHODS
 Applications of Casting
• In transport – Automobile, aerospace, railways
and shipping.
• Machine tools – Plastics molding, machining etc.
• Defense –Vehicles, artillery etc.
• Municipal casting – Joints, valves, fittings etc.
• Art objects – Sculptures, idols, decorative items.
Prepared by:
Sandeep Bagri
M.E. department

7. UNIT-01 MANUFACTURING METHODS
 Forming
• This process creates plastic
deformation of the materials
to produce desired shapes.
• Compressive stress, Tensile
stress or shearing stress is
used in this process.
• Mass remains constant
because of neither removal nor
addition of the material.
Prepared by:
Sandeep Bagri
M.E. department

8. UNIT-01 MANUFACTURING METHODS
 Advantages of Forming process
• The amount of metal waste during metal
forming is negligible.
• Sometimes the strength and hardness of
work material is increased.
Prepared by:
Sandeep Bagri
M.E. department

9. UNIT-01 MANUFACTURING METHODS
 Disadvantages of Forming process
• Higher amount of force and energy required
for this.
• Brittle work pieces cannot be processed in
this process.
Prepared by:
Sandeep Bagri
M.E. department

10. UNIT-01 MANUFACTURING METHODS
 Applications of Forming
• Sheet Metal forming is used in Automobile and
truck bodies, airplane fuselages & wings etc.
• Roofs of buildings (architecture).
• Window and door frames.
Prepared by:
Sandeep Bagri
M.E. department

11. UNIT-01 MANUFACTURING METHODS
 Machining
• This process have many other
processes in which a piece of
raw material is cut into a
required final size and shape by
a controlled material-removal
process.
Prepared by:
Sandeep Bagri
M.E. department

12. UNIT-01 MANUFACTURING METHODS
 Advantages of Machining process
• It has closer dimensional accuracy.
• Parts are heat treated for improving
hardness.
• Special texture can be produced which is
not done by any other method discussed
before.
• Any type of material can be machined.
Prepared by:
Sandeep Bagri
M.E. department

13. UNIT-01 MANUFACTURING METHODS
 Disadvantages of Machining process
• Operation time is longer.
• Maximum machining processes required
skilled labors.
• This is an expensive process.
• In some machining process, there is rough
machining operation.
Prepared by:
Sandeep Bagri
M.E. department

14. UNIT-01 MANUFACTURING METHODS
 Applications of Machining
• In making automotive parts.
• Making parts of custom specifications.
• Making of gears, shafts and other
mechanical parts.
Prepared by:
Sandeep Bagri
M.E. department

15. UNIT-01 MANUFACTURING METHODS
 Joining
• It is a process in which two parts
are connected at their contacting
surfaces by suitable temperature
and pressure.
• This process is temporary or
permanent.
• Example: Riveting, Bolting,
Welding etc.
Prepared by:
Sandeep Bagri
M.E. department

16. UNIT-01 MANUFACTURING METHODS
 Advantages of Joining process
• Joining process such as welding is more
economical.
• No noise is produced during welding
process.
• 100 % strength is there in welding process.
• Various shapes can be joined.
Prepared by:
Sandeep Bagri
M.E. department

17. UNIT-01 MANUFACTURING METHODS
 Disadvantages of Machining process
• Inspection is difficult in welding joining
process.
• Plates become weak due to holes in riveted
joints.
• They have more weight (riveted joints).
• Residual gas is generated during welding
process. Prepared by:
Sandeep Bagri
M.E. department

18. UNIT-01 MANUFACTURING METHODS
 Applications of Joining
• In gas welding, for joining thin metals.
• Gas welding, for joining most ferrous and
non-ferrous metals like Al, Cu, Ni, Mg and
their alloys.
• Shielded Metal ArcWelding (SMAW), used
for steels, stainless steels, cast irons etc.
Prepared by:
Sandeep Bagri
M.E. department

19. UNIT-01 MANUFACTURING METHODS
 Advanced Manufacturing Methods
• These are the insertion of new technologies.
• It includes improved processes and management
methods to improve products’ manufacturing.
• Advanced Manufacturing is needed because of,
 Rapid improvement in material properties.
 High production with low cost.
Some of the advanced manufacturing methods
are: CNC Machining, Ultrasonic Welding
machine etc.
Prepared by:
Sandeep Bagri
M.E. department

20. UNIT-01 MANUFACTURING METHODS
 Advanced Manufacturing Methods
CNC LATHE FOR PLASTIC PRODUCTS CNC LATHE FOR METALLIC PRODUCTS
Prepared by:
Sandeep Bagri
M.E. department