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A

Summer Training Report

On

“TATA MOTOR WORKSHOP PVT”

BACHELOR OF TECHNOLOGY

(MECHANICAL ENGINEERING)

BY

DHEERAJ PATIDAR

(Roll no. 2010BT ME002)

Enrolment no. 101301010020

DR. MAN VIJAY SINGH

HEAD OF THE DEPARTMENT

MR. PRAVEEN PATIDAR

SUPERVISOR

Department of mechanical engineering

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DR. K.N MODI UNIVERSITY NEWAI (RAJASTHAN)

SUMMER TRAINING REPORT

COMPANY : TATA MOTOR WORKSHOP LTD.

DISTRICT : TONK

TEHSIL : TONK

PHONE NO : 9983197694

DURATION : ONE MONTH

DATE : 05/07/2013 to 05/08/2013

SECTION : MAINTENANCE DEPARTMENT

REFRENCE : PRAVEEN PATIDAR (maintenance engineer)

: VIRENDRA JAIN (Training officer)

(Mr. PRAVEEN PATIDAR)

GENERAL MANAGER

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CERTIFICATE

This is to certify that summer training report entitled “machining operation as: drilling,

welding, milling & lathe machine.”, being submitted by DHEERAJ PATIDAR

(2010BTME002) for the course of BACHELOR OF TECHNOLOGY in

MECHANICAL ENGINEERING at the DKNMU, Newai, Raj. Embodies the results of

the work carried out by him within the prescribed period under my supervision and guidance

during the academic session 2013-14.

DR.MAN VIJAY SINGH

HOD

Mr. PAWAN KUMAR

Coordinator

Place: - Newai

Date: - 27/12/ 2013

DEPARTMENT OF MECHANICAL

ENGINEERING

DKNMU, Newai, Rajasthan

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CONTENT:-

Introduction of company

Objectives of training

Lathe machine

Drilling machine

Vertical Milling / drilling machine

Welding

My role in company

Feature of company

My work

Conclusion

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LIST OF FIGURE

S.NO. TITLE FIGURE NO. PAGE NO.

1 Company profile 1 7

2 Lathe machine 2 10

3 Drilling machine 3 12

4 Milling machine 4 14

5 Arc welding 5 16

6 Gas welding 6 17

7 Resistance welding 7 17

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LIST OF TABLE:-

S.NO. TITLE TABLE NO. PAGE NO.

1 Vertical milling/ drilling machine table

1 14

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Introduction of company:-

Fig no.1 (company profile)

Tata motors Present chairman is Mr. Cyrus P. Mistry  who’s appointed after the

retirement of Mr. Rattan Tata as a post of director& chairman of Tata motors.

Mr. Mistry

Chairman & director of Tata motors Mr. Mistry was appointed as a director of Tata motors with effect from May 2012, and as a deputy chairman of the company with effect from November 7, 2012 mistry took over as chairman from Mr. Rattan N Tata on his retirement with effect from December 28, 2012 ,

Mr. Mistry is a group of civil engineering from the imperial college London (1990) & has an msc in management from the London

Business school (1997) he was recently bestowed awarded by the London business school.

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INTRODUCTION OF TATA MOTORS:-

Tata is formally known as (TELCO) Tata engineering. & locomotive company

It’s the world eighteenth –largest motor vehicle manufacturing company & fourth- largest truck manufacturer & second largest bus manufacturer by volume

Its products include passenger car, truck, vanes, buses, military vehicles.

The Tata group comprises operating companies in seven business sectors: - material engineering, IT, communication, and energy services.

Tata group was founded in 19th century in 1945 as a manufacturer of locomotive.

The company manufactured its first commercial vehicle in a collaboration with DAIMLER- BENZ which ended in 1969

Tata motors entered the passenger vehicle market in 1991 with the launch of the Tata sierra, & 1998 launched the first fully Indian passenger car with Indica

Tata motors have auto manufacturing & assembly plants in Pune, Pantnager, Jamshedpur, sanand, Lucknow.

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OBJECTIVES OF TRAINING:-

TO STUDY THE MANUFACTURING PROCESS IN AUTO MOBILE INDUSTRY

TO STUDY THE CORPORATE WORKING CULTURE

TO SEARCH THE BENFITS & FUTURE SCOPE IN GLOBAL MARKET

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Lathe machine Its mainly use for turning, knurling, centring, grooving, drilling etc. it’s very most important tool ( machine tool) because all the mechanical work performed in it. There are many part of lathe machine.

Lathe Components

Tailstock The tailstock can be used to support the end of the work piece with a centre, or to hold tools for drilling, reaming, threading, or cutting tapers. It can be adjusted in position along the ways to accommodate different length work pieces. The tailstock barrel can be fed along the axis of rotation with the tailstock hand wheel.

Fig no.2 (Lathe machine)

Carriage The carriage controls and supports the cutting tool. It consists of: Saddle that slides along the ways. An apron that controls the feed mechanisms.

HeadstockThe headstock is fixed to the bed and is equipped with motors, pulleys and V-belts that supply power to a spindle at various rotational speeds. BEDThe bed supports all major components of the lathe. Beds have a large mass and are built rigidly, usually manufactured from gray or nodular cast iron.

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Feed Rod and Lead Screw The lead screw will cause the apron and cutting tool to advance quickly. This is used for

cutting threads, and for moving the tool quickly.

The feed rod will move the apron and cutting tool slowly forward. This is largely used for most of the turning operations.

Lathe Types:- There are a number of different lathe designs, and some of the most popular are discussed here.

Engine Lathe It is the basic, simplest and the most versatile lathe. This machine tool is manually operated that is why it requires skilled operators. Suitable for low and medium production and for repair works.

Turret lathes These machines are capable of carrying out multiple cutting operations on the same work piece. Several cutting tools are mounted on a tetra-, or hexagonal turret, which replaces the Tailstock. These tools can be rapidly brought into action against the work piece one by one by indexing the turret

Special Purpose Lathes These lathe machines are used for applications such as railroad wheels, gun barrel and rolling mill rolls. The size of the work piece is usually large in these machines.

Tracer Lathes These lathes have special attachments that are capable of turning parts with various contours. They are also known as duplicating or contouring lathes. The cutting tool follows the path that duplicates the contour of the template.

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Drilling machine

A drilling machine comes in many shapes and sizes, from small hand-held power drills to bench mounted and finally floor-mounted models. They can perform operations other than drilling, such as countersinking,Counter boring, reaming, and tapping large or small holes. Because the drilling machines can perform all of these operations, this chapter will also cover the types of drill bits, took, and shop formulas for setting up each operation. Safety plays a critical part in any operation involving power equipment.

Figure no. 3 (drilling machine)

Uses of drilling machine A drilling machine, called a drill press, is used to cut holes into or through metal, wood, or other materials Drilling machines use a drilling tool that has cutting edges at its point. This cutting tool is held in the drill press by a chucker Morse taper and is rotated and fed into the work at variable speeds. Drilling machines may be used to perform other operations. They can perform countersinking, boring, counterboring, spot facing, reaming, and tapping Drill press operators must know how to set up the work, set speed and feed, and provide for coolant to get an acceptable finished product. For instance, a 15-inch drilling machine cans centre-drill a 30-inch-diameter piece of stock. Other ways to determine the size of the drill press are by the largest hole that can be drilled, the distance between the spindle and column, and the vertical distance between the worktable and spindle.

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TYPES OF DRILLING MACHINES:-

There are two types of drilling machines used by maintenance personnel for repairing and fabricating needed parts: hand-feed or power-feed Other types of drilling machines, such as the radial drill press. Numerically controlled drilling machine. Multiple spindle drilling machine, gang drilling machine, and turret drill press, are all variations of the basic hand and power-feed drilling machines. They are designed for high-speed production and industrial shops.

Hand –feed drill machine

The hand-feed drilling machines are the simplest and most common type of drilling machines in use today. These are light duty machines that are hand-fed by the operator, using a feed handle. So that the operator is able to “feel” the action of the cutting tool as it cuts through theworkpiece. These drilling machines can be bench or floor mounted. They are driven by an electric motor that turns arrive belt on a motor pulley that connects to the spindle pulley. Hand-feed machines are essentially high-speed machines and are used on small workplaces that require holes 1/2 inch or smaller. Normally, the head can be moved up and down on the column by loosening the locking bolts.

Power feed drill machine

The power-feed drilling machines are usually larger and heavier than the hand-feed. They are equipped with the ability to feed the cutting tool into the work automatically, usually in thousand them of an inch per revolution. These machines are used in maintenance shops for medium duty work, or work that uses large drills that require power feed.

The power-feed capability is needed for drills or cutting took that are over 1/2 inch in diameter, because they require more force to cut than that which can be provided by using hand pressure. The speeds available on power-feed machine can vary from about 50 RPM to about 1,800 RPM. Thus lower speeds allow for special operations, such as counter boring, Countersinking, and reaming.

Vertical mini drilling / milling machine

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This Mini Milling/Drilling Machine is capable of machining metal and non metallic stock by cutting, drilling, and milling. It can cut circular surfaces, both inside and out, cones, mill planes or grooves, and other cutting functions depending on the tools used. The machine consists of the following main components as shown in the photo below.

Fig no. 4(mini vertical drilling / milling machine)

Specification of mini vertical milling / drilling machine table

ITEM DESCRIPTIONMotor 4/5 HPSpeed ranges 0 ~ 1100 low RPM and 0 ~ 2500 high RPMSpindle R-8 TaperChuck JT33 Taper; 7/64 to 1/2 inch capacityEnd mill capacity 1/2 inchFace mill capacity 1 inch Drill capacity 1/2 inchPower consumption 120 VAC, 60 Hz, single phaseWeight 115 lbs.

Table no. (1)

WELDING

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Welding is a fabrication process used to join materials, usually metals or thermoplastics, together. During welding, the pieces to be joined (the work pieces) are melted at the joining interface and usually a filler material is added to form a pool of molten material ( the weld pool) that solidifies to become a strong joint. In contrast, Soldering and Brazing do not involve melting the work piece but rather a lower-melting-point material is melted between the work pieces to bond them together.

Welding Terminology There is some special technical vocabulary (or language) that is used in welding. The basic terms of the welding language include:

Filler Material: When welding two pieces of metal together, we often have to leave space between the joint. The material that is added to fill this space during the welding process is known as the filler material (or filler metal). Two types of filler metals are commonly used in welding are welding rods and welding electrodes.

Welding Rod: The term welding rod refers to a form of filler metal that does not conduct an electric current during the welding process. The only purpose of a welding rod is to supply filler metal to the joint. This type of filler metal is often used for gas welding.

Electrode: In electric-arc welding, the term electrode refers to the component that conducts the current from the electrode holder to the metal being welded. Electrodes are classified into two groups: consumable and non-consumable.

Consumable electrodes not only provide a path for the current but them also supply filler metal to the joint. An example is the electrode used in shielded metal-arc welding.

Non-consumable electrodes are only used as a conductor for the electrical current, such as in gas tungsten arc welding. The filler metal for gas tungsten arc welding is a hand fed consumable welding rod.

Flux: Before performing any welding process, the base metal must be cleaned form

impurities such as oxides (rust). Unless these oxides are removed by using a proper flux, a faulty weld may result. The term flux refers to a material used to dissolve oxides and release trapped gases and slag (impurities) from the base metal such that the filler metal and the base metal can be fused together. Fluxes come in the form of a paste, powder, or liquid. Different types of fluxes are available and the selection of appropriate flux is usually based on the type of welding and the type of the base metal.

Types of Welding

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There are many different types of welding processes and in general they can be categorized as:

Arc Welding: A welding power supply is used to create and maintain an electric arc

between an electrode and the base material to melt metals at the welding point. In such welding processes the power supply could be AC or DC, the electrode could be consumable or non-consumable and a filler material may or may not be added.

The most common types of arc welding are:

Shielded Metal Arc Welding (SMAW):

A process that uses a coated consumable electrode to lay the weld. As the electrode melts, the (flux) coating disintegrates, giving off shielding gases that protect the weld area from atmospheric gases and provides molten slag which covers the filler metal as it travels from the electrode to the weld pool. Once part of the weld pool, the slag floats to the surface and protects the weld from contamination as it solidifies. Once hardened, the slag must be chipped away to reveal the finished weld.

Fig no. 5 (shielded metal arc welding)

Gas Metal Arc Welding (GMAW): A process in which a continuous and consumable wire electrode and a shielding gas (usually an argon and carbon dioxide mixture) are fed through a welding gun.

Gas Tungsten Arc Welding (GTAW): A process that uses a no consumable

tungsten electrode to produce the weld. The weld area is protected from atmospheric contamination by a shielding gas, and a filler metal that is fed manually is usually used.

Gas Welding:

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In this method a focused high temperature flame generated by gas combustion is used to melt the work pieces (and filler) together. The most common type of gas welding is Oxy-fuel welding where acetylene is combusted in oxygen

Fig no. 6 (gas welding)

Resistance Welding: Resistance welding involves the generation of heat by passing a high current (1000–100,000 A) through the resistance caused by the contact between two or more metal surfaces where that causes pools of molten metal to be formedAt the weld area.

Fig no. 7 (resistance welding)

Solid-State Welding: In contrast to other welding methods, solid-state welding processes do not involve the melting of the materials being joined. Common types of solid-state welding include; ultrasonic welding, explosion welding, etc.

MY ROLL IN COMPANY:

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Record the no. of machine open

Find out region to opening the machine

To find out the solution of problem by help of supervisor Record the tools used in the dissemble the machine

Record the equipment change the machine

Help the machine assembling process

To check gear teeth, oiling level grease

Clean the different internal part of machine

To check the fault of machine with group work

Basic cleaning the machine

Keep knowledge of opened machine etc.

REASION FOR TRAINING:

To apply theoretical knowledge in industries

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To improve the technical skills

To improve the knowledge about different machine

To take the information of industry working method

Taking the idea about group working

To improve the knowledge about tools used in the maintenance section

To changing the theoretical knowledge into industry practically work

Improvement of personal skills

FEATURE OF COMPANY The good marketing demand of the machine parts which making this company

Improvement the size of company

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Making market value and position of this company

MY WORK

I have keep record about all machine operation

Component used in the machine

Cleaning the machine

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To help the assembling and dissembling the machine

Changing the component of machine

Record the machine Para meter

Keep the name of internal machine parts

Check the strength of machine parts

Keep the production record etc.

CONCLUSION

Hence I have completed my summer training, so I am satisfying my complete working method. In the treading period I am taking lot of information about practically in my related field. Very large improvement of knowledge about machine which are used in the company, cleared the practically problems. In the training period uses tools which different types.

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The obtained results show good for me it’s so helpful for me & my career.

I have studied & worked in these all the machining operation that’s so important for me.

REFERENCE

All figure are taking www.google.com All theoretical data are taking by company manuals All tables are taking by hand file of production department of this company. www.wikipedia.com

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STUDENT DETAILS

Name : Dheeraj patidar

Branch : Mechanical

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Semester : 7th

Roll no. : 2010BT me 002

Enrolment no : 101301010020

Course : B.TECH