LARSEN & TOUBRO

SUMMER INTERNSHIP REPORT

ON

MACHINE SHOP IN L&T,KANSBAHAL

SUBMITTED BY
NAME = IMRAN MIRZA

SEMESTER = 4TH SEMESTER

REGD N0 = 2302010232

BACHELOR OF TECHONOLOGY

MECHANICAL ENGINEERING

SUBMITTED TO
Ms. HAZIRA KHATOON

GUIDED BY:
Mr. RAJ KISHORE GUPTA

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 Acknowledgment
Iwould like to express my sincere gratitude to Larsen &Toubro (L&T) for
providing me with the opportunity to undertake my internship at their
esteemed organization. The internship has been an invaluable learning
experience, allowing me to gain practical exposure and deepen my
understanding of the industry.

lextend my heartfelt thanks to my internship supervisor, [Supervisor's

Name], for their constant guidance, encouragement, and insightful
feedback throughout the duration of the internship. Their mentorship
played a crucial role in enhancing my technical and professional skills.

lam also thankful tothe entire team at MACHINE SHOP, who welcomed
me warmly and supported me at every step. Their collaborative spirit
and willingness to share knowledge made my
internship both productive and enjoyable.

This internship has been astepping stone in my career, and lam grateful
to all who contributed to making it a successful and enriching
experience.

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 Certificate
This is to certify that Mr.Imran Mirza, a student of Mechanical
Engineering at
DRIEMS University , CUTTACK has
successfully completed a one-month internship in the Machine Shop Department
at Larsen & Toubro Limited, Kansbahal Works, from 2ND June 2025 to 2ND July
2025, under the supervision of Mr. Raj Kishore Gupta.

We wish him all the best for his future endeavors.

Project guide
Mr. RAJ KISHORE GUPTA Signature of the guide
(Head of Praduction in-charge MAS)

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 Contents

PREFACE:

SAFETY PRECAUTIONS: 6

HISTORY: 8

INTRODUCTION TO L&T KANSBAHAL WORK: 10

LARSEN& TOUBRO VISION :-. 12

MACHINE SHOP: 13

TYPES OF MACHINES IN MACHINE SHOP: 14

MEASURING TOOLS AND USES: 38

ABOUT OVERHEAD CRANE: 40

CONCLUSION: 41

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 SAFETY PRECAUTIONS
1. Test
procedures
reader is fully recommended in this manual assume that the
conversant
safety principles, with electrical
and is familiar with
test instruments. the operation of the various
2.. DO NOT
or
attempt to work on live equipment if you are not qualified
tne
experienced in this work.
Before testing the generating set, read
generating set
Installation Manual, and this Fault-Finding
Manual, and become familiar with it and
3. Sare and theequipment.
efficient operation can only be achieved if the
correctly installed, operated, and equipment is
4. Many accidents occur because of maintained.
a failure to follow
rules and precautions. fundamental
5. Electrical shock can
cause severe personal injury or
6. Ensure installation meets all deatn.
applicable safety and local electrical
codes. Have all installations performed by qualified
Installation
technicians.
7. Do not operate the generator with
protective covers, accesS cOvers
or
terminal boX covers removed.
8. Disable engine starting circuits before
carrying out maintenance.
9. Disable closing circuits and/or place warning notices on any
circuit
breakers normally used for connection to the mains or other
generators, to avoid accidental closure. Observe all IMPORTANT.
CAUTION, WARNING, and DANGER notices, defined as: -

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 Important!
Important refers to hazard or unsafe method or, which can result in product
damage or related equipment damage.

Caution!

Caution refers to hazard

or practice, which can result in product damage or personal injury.

Warning!
It refers to a hazard or unsafe method, which can result in severe
personal injury or possible death.

Danger!
It refers to immediate hazards, which will result in severe personal injury or death.

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 LARSEN AND TOUBRO

HISTORY

Lasen &1oubre (L&T)s one of inda's largest and mot respected enineerin.
constrction,manufacturing, and techeolgy services conglomerates

Founded in 1938, by two Danish engineers Henning Holck-Larsen and Seren

Kstian Toubro

Founders of L&T
Henning HolckLarsen
Seren Kriatian Toubro

Origin: The company was originally set up in Mumbai (then Bombay) as a smal
business to represent Danish dairy equipment manufacturers in India.
 Early Years
During World War ll, imports were restricted, and L&T started manufacturing their
Own products, moving gradually into engineering and
construction.
In 1946, L&T was formally incorporated as a company in India.

Post-Independence Growth
After Indian independence in 1947, L&T expanded rapidly to support
industrialization.
The company diversified into various engineering fields: heavy engineering,
construction, switchgear manufacturing, process plant equipment, shipbuilding,
and defense.

Established strong partnerships with Indian government and industries.

Global Expansion
Over the decades, L&T expanded globally with projects in Middle East, Africa,
South East Asia, Europe, and the USA.
The company grew into a multinational organization with subsidiaries, joint
ventures, and offices worldwide.

Present Day
L&T operates in engineering, construction, manufacturing, technology, financial
services, and IT.

Known for executing some of the largest infrastructure projects in India and
abroad (metros, highways, power plants, oil platforms, etc.).
Strong commitment to innovation, sustainability, and "Make in India" initiatives.
Headquartered in Mumbai, with a global presence.
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 INTRODUCTION TO L&T KANSBAHAL WORKS

L&T's Kansbahal Works is located near Rourkela (Orissa) and is the state's largest
heavy engineering unit in the private sector. It is a world-class Integrated Machine
Building Centre with facilities for Casting, Fabrication, Machining and Assembly,
complemented by excellent design, engineering, quality control and logistics
support.

Set up in 1962 as an Indo-German Venture, it merged with L&T in 1982. The

facility produces Crushing and Screening systems, Pulp &Paper machinery,
Windmill components, cast products, Mining equipment and various other
specialised industrial products.
The Kansbahal Works R&D wing is equipped to carry out process engineering,
mechanical design / analysis, 3D modelling, Finite Element Analysis,and basic and
detailed engineering.

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 11.PAMA CNC TABLE BORER:
MACHINENAME PAMA CNCTABLE BORER
MACHINE NUMBER- 141

OPERATION USED:- 1. Boring [roughing and finishing)

2. Facing

3. Keyway

4. Drilling
5. Chamfering

6. Slotting

7. Threading

8. Grooving

PARTS OF MACHINE:- 1. Head stock

2. Spindel
3. table

4. Control panel
5. ATC Automatic tool changer
6. Pocket 60 tools

7. Scale checking for depth machine

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MACHINE SPECIFICATION

SPINDLE DIAMETER 130 mm

SPINDLE MOTOR POWER 37 KW

CROSS TRAVERSE OF TABLE X- AXIS 3600 mm

VERTICAL TRAVEL OF HEAD STOCKY 2000 mm

AXIS

LONGITUDINAL TRAVEL OF COLOUM W 1600 mm

- AXIS

SPINDLE TRAVEL 750 mm

TABLE CLAMPING SURFACE AREA 1400×1600 mm

MAXIMUM WEIGHT OF JOB 10 Ton

12.BOEHRINGER PLANER:
MACHINE NAME: BOEHRINGER PLANOMILLER MACHINE
MACHINE NUMBER: 091

OPERATIONS USED:
1. Angular surface cuting
2. Side surface machining
3. Machining of T-slots

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 4. Contouring or shaping irregular surfaces
5. Squaring of components
6. Slotting and keyway cutting
7. Flat surface machining

TOOLS USED:
1. Single point cutting tool
2. Grooving/ slotting tool
3. Form tool

4. Side cutting tool

5. HSS and carbide inserts

MACHINE SPECIFICATIONS:

Machine Components specifications

Planning length 6000mm

Planning width 2000mm
Planning height 1600mm
Infinitely variable cross feeds Infinitely 2-20mm
variable vertical feeds 1-10mm
Max. swing of head 60 degrees
Max. swing of tool lifter 20 degrees
Min. distance between center 370mm

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 13.HEYLIGENSTAEDT AND COMP. GMBH FACING
LATHE:
MACHINE NAME: HEYLIGENSTAEDT AND COMP. GMBH FACING LATHE
MACHINE NUMBER: 091

OPERATIONS USED:

1. facing
2. Turning

3. Boring

4. Thread Cutting (Metric and Whitworth)

TOOLS USED:

1. Boring Tool
2. Facing Tool
3. Turning Tool
4. Thread Cutting Tool
5. Tool Holder

6. Live Center

MACHINE SPECIFICATIONS
Machine components Specification
Sindle bore 185mm
Centre distance 6000mm
Turning diameter 1600mm
Turning diameter in a pit 3500mm

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 Width of pit covering plate 2*500mm

Thread that can be cut Metric-1to 192mm

Whitworth 20 to 1/8tpi
Attachment Boring attachment

Feed of boring tool 350mm/hr

Boring diameter 900mm-1600mm

Maximum boring lenth 5000mm

14.GMC MILLING MACHINE

MACHINE NAME-GMC MILLING MACHINE
MACHINE NUMBER - 092

OPERATION DONE :
1. Facing

2. Turning

3. Drilling
4. Boring [roughing and finishing]
5. Slotting

6. Key way cutting

7. Chamfering

PARTS OF MACHINE :
1. Table

2. Bed

3. Spindle

4. Tool head

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 MEASURING TOOLS AND USES
" Outside micrometer -Used to measure the outer surfaces of any component.

" Vernier caliper:-a measuring device that is used for the measurement of linear
dimensions. It is also used for the measurement of diameters of round objects
with the help of the measuring jaws.

" Least count 0.02mm

" Depth gauge:- Measuring the depth of an object, measure the distance from
the plane surface to the projection.
" Least count 0.01mm

" Depth micrometer:- Used to measure the depth of the hole, slot and other
projection.

" Least count 0.01

" Digital depth gauge:- Use a digital display that holes the depth measurement in
a numerical form.

" Inside micrometer:- Used to measure the inside diameter of the cylindrical or
circle object.
" Sleeve gauge:- used to measure the tolerance limit.
" Bore dial gauge:- Measure the inner diameter of bore.
" Reamer - rotary cutting tool of cylindrical or conical shape used for enlarging
and finishing to accurate dimensions holes that have been drilled, bored
" Drill:-. Adrill is a toolor machine that you use for making holes.
" Screw:- A pointed cylindrical piece of metal used for finishing two things.
" For exp fixing two wood together and same in metal.
" Bolt:- A small piece of metal that is used with another piece of metal nut for
facing things together

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The entire setup of L&T Kansbahal Works can be divided into the following groups:

Machine Shop
Fabrication Shop
BMC Shop
Engineering Drawing &Research Centre
Industrial Machinery Planning
Information Technology

LARSEN& TOUBRO

L8T WORIS CAlPUS

KASBAJAL
I KANSBAHAL

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 LARSEN AND TOUBRO VISION

VISION

L&T shall be a professionally-managed

Indian multinational,
committed to total customer satisfaction
and enhancing shareholder value.

L&T-ites shall be an innovative,

entrepreneurial and empowered team
constantly creating value
and attaining global benchmarks.

L&T shall foster a culture of caring,

trust and continuous learning
while meeting expectations of
employees, stakeholders and society.

LARSEN & TOUBRO

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 " (Facing and tolaring things together)
" Chamfer:- used to craze the sharp part
from the job.
" End mill cutter:- Making shape and holes in the
workpiece during slotting,
milling, and drilling.
" Allen key:- Lshaped metal bar with hexagonal head at
each end used to turn
bolt and secures having hexagonal socket.
"Face mill cutter:- used to plane the metal or facing is done in the work piece.
"Bevel protector:- Measuring the angle of an object.
" spritial level:- Indicates how parallel and perpendicular a surface metal is.
" .Measuring Tape:- use for checking the length of job is called
measuring tape.

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 ABOUT OVERHEAD CRANE
CRANE NAME:- OVERHEADCRANE
Weight -50ton

Load of max - 25 ton

Min -5ton

Operation:
Operated fully by remote control (Remote sensing crane)
A crane with a single or multiple girder moveable bridge carrying a moveable or
fixed hoisting mechanism and traveling on an overhead fixed runway structure.
Uses:-In verities of areas to support processing and handling throughout a facility.
Assembly:-Moving product throughout production on process.
Transportation:- Loading finished product on to open trailer.
Staging:- Holding work in process for additional production process.
Parts of overhead crane -
a. Runway

b. Bridges
c. Haints

d. Trolleys

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 CONCLUSION
My one-month internship at Larsen &Toubro, Kansbahal, in the Machine Shop
department under the mentorship of Mr. Raj Kishore Gupta has been an
immensely rewarding and educational experience.

During the course of this internship, I had the opportunity to work on a variety of
machines, including CNC machines, Lathe machines, Borer machines, etc, which
allowed me to gain practical insights into modern and conventional machining
processes. This hands-on experience helped me understand the intricacies of
precision manufacturing and the role of advanced technology in improving
productivity and quality.

lalso developed a better understanding of various shop floor practices, tooling,

component handling, and quality assurance procedures. Exposure to different
types of machining operations broadened my technical knowledge and enhanced
my ability to interpret engineering drawings and manufacturing specifications.

Under the valuable guidance of Mr. Raj Kishore Gupta, I was able to link
theoretical concepts with real-world industrial applications. His mentorship not
only improved my techrnical proficiency but also helped me understand the
importance of safety, process discipline, and teamwork in an industrial
environment.

Overall, this internship has greatly contributed to my professional growth by

sharpening my practical skills, boosting my confidence, and providing a solid
foundation for my future career in the manufacturing and engineering sector. Iam
thankful to Larsen &Toubro, Kansbahal and to Mr. Raj Kishore Gupta for this
valuable opportunity and for their continuous support throughout the internship.
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