1. Diesel Locomotive Works (DLW) in India manufactures diesel-electric locomotives and diesel generator sets for Indian Railways and other customers. It was established in 1961 through collaboration with the American Locomotive Company.
2. DLW's facilities include locomotive frame, paint, and engine assembly shops. The locomotive frame shop constructs frames from steel plates or bars. The paint shop prepares and paints locomotive bodies. The engine assembly shop installs components like pistons, cylinders, and generators.
3. DLW also has a light machine shop that manufactures small engine parts using lathes, mills, and other machine tools. Products include gears, camshafts, connectors rods
4 weeks at internship - DLW VARANASI (U.P.) By Parvind GuptaParvind Gupta
About the industry:
Diesel Locomotive Works [DLW] is production unit under the ministry of railways. DLW is only manufacture of diesel electric locomotive with ALCO & General Motors [GM] based technologies in the words.
4 weeks at internship - DLW VARANASI (U.P.) By Parvind GuptaParvind Gupta
About the industry:
Diesel Locomotive Works [DLW] is production unit under the ministry of railways. DLW is only manufacture of diesel electric locomotive with ALCO & General Motors [GM] based technologies in the words.
The slides will provide an overview of some of the shops in diesel locomotive works, Varanasi. I tried to cover maximum content in this ppt. Still you can add some of yours :)
seminar presentation for topic engine block with engine parts and casting of blocks and schematic diagram with brief description about different parts and also with moualding process of the different parts
Analysis of Power Generation Plant at Pakistan Steel MillsDanial Sohail
Industrial visit report of Power Generation Plant at PSM, include stats about power generation, boiler and turbine capacities, water treatment plant for feed water. contains interactive schematics and charts for ease of understanding. briefly discuss all components of power generation plants. gives an insight about processes in boiler from preheating to super heating. Recommendation for PSM's power plant to enhance their efficiency and making it cost benefit.
Summer Training Report,DIESEL LOCOMOTIVE WORKS,VARANASI(DLW)Vivek Yadav
Summer Training Report,
Locomotive Manufacturing Workshops(EES,LTS,LFS,HMS)
DIESEL LOCOMOTIVE WORKS, VARANASI(DLW),
MECHANICAL ENGINEERING,
Diesel locomotive works (DLW) is production unit under the ministry of railways. This was set up in collaboration with American Locomotive Company (ALCO) USA in 1961 and the first locomotive was rolled out in 1964. This unit produces diesel electronic locomotives and DG sets for Indian railways and other customers in India and abroad.
The slides will provide an overview of some of the shops in diesel locomotive works, Varanasi. I tried to cover maximum content in this ppt. Still you can add some of yours :)
seminar presentation for topic engine block with engine parts and casting of blocks and schematic diagram with brief description about different parts and also with moualding process of the different parts
Analysis of Power Generation Plant at Pakistan Steel MillsDanial Sohail
Industrial visit report of Power Generation Plant at PSM, include stats about power generation, boiler and turbine capacities, water treatment plant for feed water. contains interactive schematics and charts for ease of understanding. briefly discuss all components of power generation plants. gives an insight about processes in boiler from preheating to super heating. Recommendation for PSM's power plant to enhance their efficiency and making it cost benefit.
Summer Training Report,DIESEL LOCOMOTIVE WORKS,VARANASI(DLW)Vivek Yadav
Summer Training Report,
Locomotive Manufacturing Workshops(EES,LTS,LFS,HMS)
DIESEL LOCOMOTIVE WORKS, VARANASI(DLW),
MECHANICAL ENGINEERING,
Diesel locomotive works (DLW) is production unit under the ministry of railways. This was set up in collaboration with American Locomotive Company (ALCO) USA in 1961 and the first locomotive was rolled out in 1964. This unit produces diesel electronic locomotives and DG sets for Indian railways and other customers in India and abroad.
This is training report of chittaranjan locomotives works. This is useful for those student who want to give presentation in collage which is held in 7th semester. In this report , you will find brief introduction of clw, locomotives parts , about electric engines and manufacturing shops in clw.
Presentation on Remanufacturing of Engine Block of a locomotive at DMW, PatialaArjun Gaur
The presentation is related to my Internship at D.M.W, Patiala, one of the primate manufacturers for Indian Railways. The project assigned to me was to study the rehabilitation and remanufacturing of the Engine Block of a locomotive. Although there might be some minute loop holes in the presentation as it has been 2 years since I left that very place, but more or less everything is same. In fact, it was during my training that the Ministry of Railways decided to manufacture and roll out Multi- Genset loco called WDM 2G. So for any basic queries regarding the presentation feel free to contact.
Presentation on Remanufacturing of Engine Block of a locomotive at DMW, PatialaArjun Gaur
The presentation is related to my Internship at D.M.W, Patiala, one of the primate manufacturers for Indian Railways. The project assigned to me was to study the rehabilitation and remanufacturing of the Engine Block of a locomotive. Although there may be some minute loop holes in the presentation as it has been 2 years since I left that very place, but more or less everything is same. In fact, it was during my training that the Ministry of Railways decided to manufacture and roll out Multi- Genset loco called WDM 2G. So for any basic queries regarding the presentation feel free to contact.
It is a PPT presentation on Summer Training of 4 weaks in Diesel locomotive Works, varanasi, which contains Introduction of Diesel Locomotive Works, Varanasi and 4 shops
1. SMS (Sheet Metal Shop)
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3. TMS (Truck Machine Shop)
4. LFS (Loco Frame Shop)
Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
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Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
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বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
dlw taining file
1. 1- INTRODUCTION TO DLW
Diesel Locomotive Works (DLW) is a production unit under the ministry of railway. This was
setup in collaboration with American Locomotive Company USA in 1961 and the first
locomotive was rolled out in 1964.This unit produces diesel electronic locomotive and DG sets
for Indian railway and other customer in India and Abroad.
Subsequently a contract for transfer of technology of 4000 HP Microprocessor Controlled
AC/AC Freight (GT 46 MAC) passenger (GT 46 PAC) locomotive family of 710 engine has
been signed with electro motive division of GENERL MOTOR of USA for manufacture in
DLW. The production of these locomotive has now started and thus DLW is the only
manufacturers of Diesel Electric
2. 1.1 Brief History:
Set up in 1961 as a green-field project in technical collaboration with ALCO/USA to
Manufacture Diesel Electric Locomotives.
First locomotive rolled out and dedicated to nation in January, 1964.
Transfer-of-Technology agreement signed with General Motors/ USA in October, 95 to
manufacture state-of-the-art high traction AC-AC diesel locomotives.
A flagship company of Indian Railways offering complete range of flanking products in its
area of operation.
State-of-the art Design and Manufacturing facility to manufacture more than 150 locomotives
per annum with wide range of related products viz. components and sub-assemblies.
Unbeatable trail-blazing track record in providing cost-effective, ecofriendly and reliable
solutions to ever-increasing transportation needs for over three decades.
Fully geared to meet specific transportation needs by putting Price-Value Technology equation
perfectly right.
A large base of delighted customers among many countries viz. Sri Lanka, Malaysia, Vietnam,
Bangladesh, Tanzania to name a few, bearing testimony to product leadership in its category.
1.2 Salient Features:
Annual production capacity 125
Locomotives Annual turn-over (Rs) 5000 million
Total number of staff 7223
Workshop land 89 Hectares Township area 211 Hectares
Covered area in shops 86300 m2
Covered area of other service buildings 73700 m2 Electrical power requirement 3468 KVA
(Average maximum demand)
Electrical energy consumption (units/year) 19.8 million
Standby power generation capacity 3000 KW
3. .1.3 Productof DLW:
DLW is an integrated plant and its manufacturing facilities are flexible in nature. These can be
utilized for manufacture of different design of locomotives of various gauges suiting customer
requirements and other products. The product range available is as under:
WDG4 4000 HP AC/AC Freight Traffic Locomotive
WDP4 4000 HPAC/AC Broad Gauge High Speed Locomotive
WDG3D 3400 HP AC/AC Broad Gauge Mixed Traffic Micro-Processor Controlled
Locomotive.
WDM3C 3300 HP AC/DC Broad Gauge Mixed Traffic Locomotive.
WDM3A 3100 HP AC/DC Broad Gauge Mixed Traffic Locomotive.
WDP3A 3100 HP AC/DC Broad Gauge High Speed Passenger Locomotive.
WDG3A 3100 HP AC/DC Broad Gauge Freight Locomotive.
WDG4 4000 HP AC/AC Freight Traffic Locomotive
WDP4 4000 HPAC/AC Broad Gauge High Speed Locomotive
WDG3D 3400 HP AC/AC Broad Gauge Mixed Traffic Micro-Processor Controlled
Locomotive.
WDM3C 3300 HP AC/DC Broad Gauge Mixed Traffic Locomotive.
WDM3A 3100 HP AC/DC Broad Gauge Mixed Traffic Locomotive.
WDP3A 3100 HP AC/DC Broad Gauge High Speed Passenger Locomotive.
WDG3A 3100 HP AC/DC Broad Gauge Freight Locomotive.
1.4 DesignOffice:
Prepare diag. of each part and sent to Material Control & inform timely in any change in any
parts to relative department.
4. 2-LOCO FRAME SHOP
A locomotive frame is the structure that forms the backbone of the railway locomotive, giving it
strength and supporting the superstructure element such as a cab, boiler or bodywork. The vast
majority of locomotive have had a frame structure of some kind. The frame may in turn be
supported by axles directly attached to it or it may be mounted on bogies (UK)/trucks (US), or a
combination of two. The bogies in turn will have frames of their own.
2.1 Types of frame:
Plate frames
These used steel plates about 1-2 in (25.4-50.8 mm) thick. They were mainly used in Britain and
continental Europe. On most locomotive the frames would be situated with in the driving wheel
but some classes of early steam locomotive and diesel shunters were constructed with outside
frames some early designs were double frame where the frame consisted of plates both inside
and outside the driving wheels. Others were sandwich frames where the frame was constructed
of wood sandwiched between two metal plates.
5. Bar Frames:
These were made of two steel bars which are usually 4-7 in (101.6-177.8 mm) thick. They were
first used on the Bury Bar Frame locomotive during the 1830s, and were widely used in the USA
throughout the nineteenth century.
6. SteelFrames:
Cast steel locomotive beds were a development of the final years of steam locomotive design in
the United State. They were also exported to Britain and Australia from the USA.
7. Articulated locomotives:
An articulated locomotives with no fixed wheels (i.e. excluding the mallet locomotive but
including other articulated steam locomotives, as well as most diesel and electric locomotives)
may have a separate frame beneath the superstructure or the bodywork internal structure may be
load-bearing. Rarely is a true mono structure used. Diesel and electric locomotive with a
traditional, full width body, known as cab units in North America tend to have their strength in
an internal structure. This style of construction is still popular elsewhere, but North American
locomotive nowadays are overwhelmingly hood unit with a strong frame beneath the
superstructure that carries all the load and bodywork made or removable panels for easy
maintenance. Fully enclosed locomotive are used in some limited application, mostly for
passenger train. These tend to be cowl unit, in which the body is not load-bearing.
8. 3-Loco Paint Shop
The work of this shop is to paint the coaches and bogie. In this shop there are many section and
they are following
1-COACH PAINTING.
2-LETTER SECTION.
3-CORROSION SECTION.
4-POLISH SECTION.
3.1 Purpose of Painting:-
1-FORPROTECTION AGAINST COROSION.
2-FORDECORATION.
3-FORCOVERING.
3.2 MaterialUsed in Painting:-
1-PAINT MATERIALS.
2-ENEMAL MATERIALS.
3-VARNISH MATERIALS.
4-LACQUER MATERIALS.
3.3 Paint Materials:-
1-BASE.
2-BINDER.
3-THINNER.
4-DRIER.
5-PIGMENT.
6-INERT OR FILLER MATERIAL.
3.4 The Main ProcessInvolve in Painting:-
Firstly, Putin is prepared and it gets filled at the places where holes and cracks has been found.
Secondly the primer is put primer is put on the body and then finally painting is done in order to
give the body desire shape.
9. The overhauling of the coaches has been in given time interval it improves the quality of coaches
and it also prevents the coaches from break down. The maintenance of coaches is according to
time being is done as following
1-MAIL EXPRESS 12 MONTHS
2-PASSENGER. 18 MONTHS
3-NEWLY COACHES. 24 MONTHS
3.5 Types of Pant:-
1-Aluminum paint.
2-Anti-corrosive.
3-Asbestos paint.
4-Bituminous paint.
5-Cellule paint.
6-Cement paint.
7-Distemper.
8-Plastic paint
9-Graphite paint.
10-Oil paint.
11-Silicate paint.
12-Luminous paint.
13-Enamel paint.
14-Emulsion paint.
4-Engine Erection Shop (E.E.S):-
This shop deals with different sub assembly and different items of engine. There are six section.
4.1 Paint section
This section deals with the cleaning debarring of cylinder block.
4.2 Pistoncranks shaft and cylinder erection
a- Open and remove main brag caps.
b- Fitting of liner sleeve.
10. c- Fitting of camshaft and bushing.
d- Fitting of cylinder head studs.
e- Fitting of cylinder liner
4.3 Cylinder head erection
a- Sub assembly of crank shaft crankshaft gear.
b- Sub assembly of piston and connecting rod.
c- Fitting of cylinder head.
d- Fitting of water connection.
e- Fitting of exhaust manifold.
4.4 Generatorcam shaft controlshaft and turbo application
a- Fitting of oil catcher.
b- Fitting of generator mounting block.
c- Fitting of air duet support
d- Fitting of main generator and marking pointer.
e- Fitting of fuel oil header.
f- Fitting of control shaft.
g- Fitting of cam shaft and cam shaft gear.
h- Fitting of os trip
i- Fitting of turbo support.
j- Fitting of after cooler.
k- Fitting of spacer.
l- Fitting of turbo charger with water collector.
m- Fitting of water piping.
4.5 Fuel pump and valve lever
a- Fitting of fuel filter.
b- Fitting of fuel pump support.
c- Fitting of fuel pump.
d- Fitting of governor mounting.
e- Fitting of push rod.
f- Fitting of valve lever
g- Fitting of valve lever clearance.
4.6 Piping and miscellaneous
a- Fitting of all piping
11. b- Fitting of F.P. support.
c- Fitting of lube oil strainer.
d- Fitting of cam shaft gear cover.
e- Fitting of explosion cover.
5-INTRODUCTION TO LIGHT MACHINE SHOP
This shop deals with the matching of various small components required for the power pack unit
such as, cam shaft, connecting rod, liners, gears, levers, F.P. Support, Piston pin, nuts and bolts
bushes, various shafts etc.
5.1 The light machine shop divided into the following section:-
1. Econometric Section
2. Gear section
3. Grinding section
4. Cam shaft section
5. A.T.L. section
6. Belching section
7. Connecting rod section
8. Lathe section
12. 9. Liners section
10. Drilling section
11. Milling section
1-Econometric section:
This section manufacturing various sizes etc.
2- Gearsection:
Econometric machine, do-all machine, belt grinding machine (for control shaft
feed)
This section deals to making various gears impeller such as: cam shaft gear, crank
shaft gear, extension shaft gear, impeller gear (follower & drive) and broaching
Machine Provided:-
Gear hobbling machine
(a) Gear hobbling machine
13. (b) Gear shaving machine
(c) V.T.L. machine
(d) Radial drilling machine
(e) Broaching machine
(f) Centre mill M/C
3- Grinding Section:
In this section the various small components are grinding as per required finishing after
machining operation and each components having grinding allowance (G.A.) main piston pin,
impeller and fuller and follower gear, pin valve guide, various studs. Cam roller, seat (V/C Q ‘X’
head) spider various bushes etc.
Machine provided:
a. Cylindrical grinding machine
b. Internal grinding machine
c. Centre less grinding machine
d. Thread rolling machine
e. Universal grinding machine
f. External grinding machine
4. Camshaftsection:
14. This section making cam shaft (both B.G. & M.G.) with completed machining operation by
various special type of machine. In B.G. 08 no’s per loco and in M.G. 03 per loco.
5. Automatic Turret Lathe (A.T.L) Section:
This section manufacturing various types of small components for Power pack engine such as:
Lock spring seat (V/L & X-Hd) spewing seat. Ball end, cup end ad. Screw (X-HD & V/L) cop
screws L.A.S. retainer, spring lever, F.P. inlet, Porg Bkt. piston pin liner sleeve, body outer ring
spicier etc.
Machine Provided:
1. M.T.L. (Bar type, chuck type)
2. U.T.L.
The A.T.L. section is the vital section of this shop. Maximum small components are
manufacturing in the section.
6. Benching Section:
In this section the benching operation of the entire component which are manufacturing in the
shop are done here. In the benching section, there hawing hand cutter machining and belt
grinding machine, with the half of these machine bar removing from all the components.
7. Connecting rod section:
In this section the connecting rod is made. All the machining operations of the connecting rod,
completed here with the help of various types of machine. The connecting rod has two parts,
one is cap and other is rod. The material of the connecting rod is steep forging. In B.G. 16 per
loco and in M.G. 6 per loco.
Main dimensions:
1. Crank bore (big bore) =6-411” to 6.421”
2. Piston pin bore (small bore) =3.998” to 3.999”
3. Distance Between Two = 20.995” to 21.000” bare Centre
4. Rod Thickness = 3.020” to 3.022”
5. Weight = 32 Kg 950 gram to 32 Kg gram.
6. Pressure Torque = 150 P.S.I.
15. 8. Lathe section:
This section deals various types tropical small components are manufacturing. Centre lath
machines oar provided in this section.
The components are: brass sleeve, wear plate, valve guide, long stud, shaft etc.
In drum type turret lathe M/C manufacturing pin cam roller, cup end, bush washer etc.
9. Cylinder Liner Section:
In this section .cycle liner machine operation have done here by the various type of m/cs. the
material of the cylinder Liner is special Cast iron and the set the per loco is in B.G. 16 and in
M.G. 6 cylinder.
Main Dimension:-
1. Length 21 15/16 + 1/64
2. Inside dia. rough honing -9.010”
3. Inside dia. finish honing – 9.015”
16. 4. outside dia. – 10.00”
5. Dia. of groove – 10.749 to 10.750”
Machine provided:-
1. Shot blast machine.
2. Vertical boring machine
3. Auto lathe machine.
4. Honing machine.
5. Cylindrical grinding machine.
10. Drilling Section:
In this section dials with various Types of drilling, reaming, counter bore spot tracing and
counter sinking operation done of various small components.
The components are, F.P. support, P.R. Lighter, X head, Valve Lever, Spring Lever, Brg,
Bracket, Pin, Ecc Lever, Upper housing etc.
Machine Provided:-
1. Radial drilling Machine,
2. Gang drilling machine of multy spindle drilling machine
3. Drilling Machine
4. Electronic drilling machine.
11. Milling Machine:-
This section manufacturing various types of milling operation of the components in different
types of milling machine-
Machine Provided:-
1. Vertical milling machine
2. Horizontal milling machine
3. Universal milling machine.
6-INTRODUCTION TO MACHIN SHOP
Machine shop work is generally understood to include all cold-metal work by which an operator,
using either power driven equipment or hand tools, removes a portion of the metal and shapes it
to some specified form or size. It does not include sheet metal work and copper smithing. The
function of all machine tools is to produce metal parts by changing the shape, size, or finish of a
piece of material. The shape of a part made with a machine toolis limited by the types
of motion the tool can apply.
Standard machine tools are grouped in six basic classes:
1. LATHES
2. DRILLING MACHINES
3. SHAPERS
4. PLANERS
5. MILLING MACHINES
6. GRINDING MACHINES
6.1 LATHE:
17. The lathe is used for turning various metals against a cutting tool that shapes it to the desired
product. The engine lathe is a machine tool that produces a cutting action by rotating the work
piece against the cutting edge of the tool.
6.2 DRILLING MACHINES:
The drilling machine is a machine tool that produces the necessary cutting action by the rotation
of a multiple edge cutting tool.
6.3 SHAPING AND PLANING MACHINES:
Both of these machines can machine flat surfaces with a single point reciprocating, motion is
applied to both the work piece and tool in these machines.
6.4 MILLING MACHINES:
A milling machine provides cutting action to a rotating tool. The vertical milling machine is used
to cut, shape, and finish metal objects.
6.5 GRINDING MACHINES
A grinder differs from other machines in that it uses a tool made of emery, Carborundum, or
similar materials. The wheel, made up of many tiny cutting points, cuts with the entire surface
area that comes in contact with the material being ground. Grinders cut with a grinding action,
removing material in the form of tiny particles.
6.6 SAFETYRULES FOR MACHINE TOOLS:
1. Gears, pulleys, belts, couplings, ends of shafts having keyways, and other revolving or
reciprocating parts should be guarded to a height of 6 feet above the floor. The guards should be
removed only for repairing or adjusting the machine and must be replaced before operating it.
2. Safety setscrews should be used in collars and on all revolving or reciprocating members of
the machine tool or its equipment.
18. 3. Do not operate any machine tool without proper lighting.
4. Never attempt to operate any machine tool until you fully understand how it works and know
how to stop it quickly.
5. Never wear loose or torn clothing and secure long hair, since these items can become caught
in revolving machine parts. Ties should be removed and shirt sleeves should be rolled up above
the elbow.
6. Gloves should never be worn when operating machinery except when absolutely necessary.
7. Always stop the machine before cleaning it or taking measurements of the work piece.
8. Do not lubricate a machine while it is in motion. Injury to the operator and damage to the
machine may result from this practice.
9. Always wear safety glasses or goggles while operating machine tools. Also, wear respiratory
protection if operation creates hazardous dust. All persons in the area where power tools are
being operated should also wear safety eye protection and respirators as needed.
10. Know where tire extinguishers are located in the shop area and how to use them.
19. 11. Never wear jewelry while working around machine tools. Rings, watches, or bracelets maybe
caught in a revolving part which could result in the hand being pulled into the machine.
12. Avoid horseplay. Tools are very sharp and machines are made of hard steel. An accidental
slip or fall may cause a serious injury.
13. Never use compressed air without a safety nozzle to clean machines or clothing. It will blow
sharp, dangerous metal chips a long distance.
20. 14. Never place tools or other materials on the machine table. Cluttering up a machine with tools
or materials creates unsafe working conditions. Use a bench or table near the machine for this
purpose.
15. Always use a rag when handling sharp cutters such as milling cutters and end mills.
7-INTRODUCTION OF HEAVY WELDING SHOP:
In the DLW there are basically three type of welding used in HWS. The welding quality of DLW
is very high quality. After the machining process we can’t say that this piece is not single piece.
1. Submerged arc welding
2. Manual metal arc welding
3. MIG welding
7.1 SUBMERGED ARC WELDING:
In submerged arc welding the welding process will be covered with the flux so that it will not
react with oxygen and nitrogen. Because of the versatility of the process and the simplicity of its
21. equipment and operation, shielded metal arc welding is one of the world's most popular welding
processes.
It dominates other welding processes in the maintenance and repair industry, and though flux-
cored arc welding is growing in popularity, SMAW continues to be used extensively in the
construction of steel structures and in industrial fabrication. The process is used primarily to
weld iron and steels (including stainless steel) but Aluminum nickel and copper alloys can also
be welded with this method.
7.2 GMAWCOMPONENTS:
1. DC or Direct Current power supply
2. Electrode or wire feed controller
3. Wire drive roller assembly
4. Shielding gas source (cylinder) & regulator
5. Manually held Gun & ground clamps
6. Wire reel
22. 7.3 MIG WELDING:
MIG welding can be used for most types of metals; steel, stainless steel, as well as aluminum.
But welding aluminum is very different from welding mild steel because aluminum is a metal
that is different from steel. So when we weld aluminum, we have to use other parameters, other
settings. Aluminum has a lower melting temperature than mild steel, for example, so you should
expect that we should use a lower heat input but in spite of this. So we have to use a higher local
heat-input but a faster welding speed than with steel to get good fusion and penetration. This
sounds as if aluminum welding is difficult, but it's not. The welding sets that we use adjust the
welding parameters automatically, so the welder can concentrate on the welding operation, the
movement of the welding gun and the weld pool.
23. INDEX
SerialNumber Content
1. Introduction to DLW
1.1 Brief History
1.2 Salient Features
1.3 Product of DLW
1.4 DesignOffice
2. LOCO FRAME SHOP
2.1 Types of frame
3. Loco Paint Shop
3.1 Purpose of Painting
3.2 Material Usedin Painting
3.3 Paint Materials
3.4 The Main Process Involve in Painting
3.5 Types of Pant
4. Engine Erection Shop
4.1 Paint section
4.2 Piston cranks shaft and cylinder erection
4.3 Cylinder head erection
4.4 Generator cam shaft control shaft and
turbo application
4.5 Fuel pump and valve lever
4.6 Piping and miscellaneous
5. INTRODUCTION TO LIGHT MACHINE SHOP
5.1 The light machine shopdivided into the following section
6 INTRODUCTIONTO MACHIN SHOP
6.1 LATHE
6.2 DRILLING MACHINES
6.3 SHAPING AND PLANING MACHINES
6.4 MILLING MACHINES
6.5 GRINDING MACHINES
6.6 SAFETY RULES FOR MACHINETOOLS
7. INTRODUCTION OF HEAVY WELDING SHOP
7.1 SUBMERGED ARC WELDING
7.2 GMAW COMPONENTS
7.3 MIG WELDING
8. Conclusion