This presentation summarizes Heavy Engineering Corporation Ltd (HEC), which has three main manufacturing plants: 1. The Foundry Forge Plant is the largest foundry and forging complex in India. It produces cast and forged iron and steel products weighing up to 70 tons using processes like casting, forging, heat treatment, and machining. 2. The Heavy Machine Building Plant designs and manufactures heavy machinery for industries like steel, mining, cement, and nuclear power. It is equipped with machine tools to produce components through machining processes. 3. The Heavy Machine Tools Plant manufactures medium and heavy-duty CNC and conventional machine tools for sectors like railways, defense, and space.

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Presentation on
Heavy Engineering Corporation Ltd
Ranchi-834004
Submitted by :-
NAME WBUT ROLL NO. CLASS ROLL NO.
SANJU KUMAR SANJAY 14800712126 12/ME/14
RAHUL KUMAR 14800712118 12/ME/03

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INTRODUCTION
 H.E.C was established in the year 1958 as one of the largest
integrated engineering complex in country with excellent
design , engineering and manufacturing .
 H.E.C has three major parts in which products are
manufactured according to the requirements. These three sub
plants are :-
1.FOUNDRY FORGED PLANT
2.HEAVY MACHINE BUILDING PLANT
3.HEAVY MACHINE TOOL PLANT

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FOUNDRY FORGED PLANT
It is the largest foundry and forging complex in India and one of the largest of its kind in the
world.
The area of the Plant is 13,16,930 sq.m accommodating 76,000 tonnes of installed machinery
to cope up with the various operations effectively.
1.Grey Iron Foundry
2.Steel Foundry
3.Forge Shop
4.Rough Machine Shop
5.Pattern Shop
6.Pattern Storage and Repair shop
FFP comprises the following units that enables it to make a variety of products are :-

4. The major processes of FFP
 Grey iron casting.
 Iron casting of piece weight 70 Ton finished weight .
 Centrifugal Casting .
 Cock Oven door bodies , door frames and flash plated for coke
oven up to 7m height.
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Casting
Casting is a manufacturing process in which material is melted and
then poured into mould to get the desired shape.
Casting finds a wide application in manufacturing science and
different types of casting processes are used according to our
convenient . The different casting processes are:-
1.Sand mould casting
2.Shell moulding casting
3.Precision Investment casting
4.Die casting
5.Vacuum die casting
6.Centrifugal casting

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Casting products

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 Forging is a secondary manufacturing process in which
material is heated below recrystallization temperature and
then manual or pneumatic force is applied to obtain the
desired shape.
 Forging is often classified according to the temperature at
which it is performed: cold, warm, hot forging. The major
forging processes are:-
1.Drop forging
2.Press forging
3.Upset forging
4.Roll forging
FORGING PROCESS

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Press Forging
Press forging is a method of forging that involves the slow and
continuous application of pressure on the work piece .
This method differs greatly from the heavy and quick blows used in
drop and hammer forging.
Basic mechanism used in Press forging

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THE FORGING SHOP
6000T Press

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Products of Foundry Forge Shop
Forged Ball (1.35 M diameter)
Rolling Rod

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Forging
Advantages:-
1. Parts produced by forging are
stronger.
2. Reduces internal stress.
3. Internal grain configuration can
be controlled.
4. Better surface finish can be
achieved.
Disadvantages:-
1. Producing forged parts
involves a lot of expenditure
for the machinery, dies, tools
and personnel.
2. Some forging requires metal-
forming dies.
3. Requires very-high
experienced engineers.
4. Relatively involves a lot of
expenditure than casting.

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HEAT TREATMENT
Heat treatment is a process of repeated heating and cooling to add
the desired properties to the finished /semi finished .
The major heat treatment processes are :-
1.Hardening
2.Annealing
3. Normalizing
4.Case Hardening a. Carburizing
b. Nitriding
c. Cyaniding
d. Induction hardening

14. Heavy Machine Building Plant
(HMBP)
 The Plant has a fenced area of 5,70,000 sq.m and a floor area of nearly
2,00,000 sq.m.
 It is well equipped with sophisticated machine tools and handling
equipment to undertake manufacture of heavy machinery and equipment of
top quality.
 It is engaged in design and manufacture of equipment and components for
Steel Plant, Mining, Mineral Processing, Crushers, Material Handling,
Cranes, Power, Cement, Aluminium, Space Research, Nuclear Power etc.
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15. Cont….
Machining Process in Conventional Lathe
Vertical Milling Machine
Radial Drilling Machine 15

16. Cont….
Horizontal Gear Hobbing Machine
Vertical Gear Hobbing Machine
V.T.B. Machine 16

17. Cont….
Double Column Planning Machine
Shearing Machine
Plate bending Machine 17

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HEAVY MACHINE TOOLS PLANT(HMTP)
 HMTP is the most modern and sophisticated of its kind in the
country which produces machine tools in heavier ranges.
 The Plant covers an area of over 2,13,500 sq.m.
 It designs and manufactures medium & heavy duty CNC and
conventional Machine Tools for Railways, Defence, Ordnance
Factories, Space and other strategic sectors.

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vertical turning/boring m/c.
Horizontal Boring Machine Plano Milling Machine
Lathe Machine
Assembled Machine in HMTP

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Welding is a process of joining similar or dissimilar metals by application of heat with
or without application of pressure and addition of filler material.
Types of Welding:
1. Arc Welding
a) Metal Inert Gas Arc (MIG)
b) Tungsten Inert Gas Arc (TIG) etc.
2. Gas Welding
WELDING PROCESS

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ARC WELDING
Two metals are joined by generating an electric arc between a covered metal electrode
and the base metal.
Fig1: Arc Created in Welding Fig2: Arc Welding setup

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Metal Inert Gas Arc (MIG): Tungsten Inert Gas Arc (TIG):
Cont….
Fig. MIG Fig. TIG

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GAS WELDING
Slower and easier to control than electric arc. Uses gas flame over metals until molten
puddle is formed. Most popular fuels used with oxygen include acetylene and
hydrogen.
Fig. Gas welding set

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Cont….
Gas Flame :
1. Neutral Flame
Fig. a
2. Carburising Flame
Fig. b
3.Oxidising Flame
Fig. c

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ACKNOWLEDGEMENT
I express my sincere gratitude to Mr. DEONATH SINGH , Mr. VIVEK
Mr. RAJEEV RANJAN for providing me an opportunity to work on this
project. I would also like to thank Mr. Biswaroop Chatterjee (Training
and Placement Officer) and Mr. Moloy Kumar Bannerjee (Head of the
Department) for giving me this opportunity and permission to be a part
of this winter internship programme. Lastly, I thank my parents, family
members and friends for their constant support in my endeavor.

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BIBLIOGRAPHY
These are some references from where we have taken the above
information are :-
www.google.com
www.yahoo.co.in
www.hecltd.com
MANUFACTURING TECHNOLOGY
WORKSHOP TECHNOLOGY
P N RAO
HAZRA CHOWDHARY

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