interniship PRESENTATION 2.pptx

8/14/2019 interniship PRESENTATION 2.pptx

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ACKNOWLEDGEMENTThis report would not have been possible without the support of many

people. I wish to express my sincere gratitude to my supervisor instructor Dawit

Kebedewho was abundantly help full and offered valuable assistance, support

and guidance as well.

Deepest gratitude also due to the members of DDFCS staffs, without whose

knowledge and assistance this report would not have been successful.

Our departments staff members like instructor Samsonwho guided me

through the process of internship are also have to be appreciated. I thank them

all.


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EXECUTIVE SUMMERY This report documents the work done during the internship better time at Image understandingthe overall process of Dire Dawa Food Complex S.C & the rank of technology the company used,

maintenance work performed under the supervision of my mentor, supervisor and manager of

maintenance Department.

From my first day in the company on wards I could honestly say that I was trying to see

everything from my heart. I did that all because I made up my Mind before I got there to learn what

so ever I came across during these four Month of internship practice. I believe that I met my goal.

Fortunately, from my first day of entrance of factory I got my friend who I learned together

during high school level which are now the member of the company workers and he invite me as I

visit all part of factory with explaining for me about machine one by one and next day after themanager of maintenance section told me advisor also my advisor visiting me same as yesterday.

Also He told me how to communicate industrial community. So, I was not troubled to communicate

with staff members even more they are easy going community.


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SHORT PROFILE OF DIRE

DAWA FOOD COMPLEX S .CDire Dawa Food Complex S.C is located in Dire Dawa town in the eastern part ofthe country which is around 515kms from Addis Ababa. The company stated its

operation in 1995 GC and it is one of the modern Food processing plants in East

Africa. The company had played a leading role in the food processing industry of

Ethiopia with respect to introducing new system of production and packaging as well

as it is the pioneer in having international systems certificates like FSMS (Food Safety

Management System) and ISO 22000:2005 ISO 14001:2004 (Environment

Management System) certification.

Its High quality standard products have got a good reputation among ourcustomers all over the country.


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cont.

DIRE DAWA FOOD COMPLEX AS A PROJECT:The Dire Dawa

Food Complex Project was conceived as an expansion program of

the ex-Dire Dawa flour mill located at Dire Dawa town in the

Eastern region of the country. The feasibility study of the project

was finalized in 1972 GC with the main objective of establishing a

food complex consisting of a wheat flour mill with 120 tons/day

grinding capacity, long and short cut past plant lines with total

production capacity of 44 tons/day and biscuit production lines

with a capacity of 10 tons/day.


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Cont.

According to the feasibility study, the project costwas estimated to be 34.5 Birr million. The sourceof finance was planned to be: Foreign loan for 21 Million Birr

Government equity for 7.4 Million Birr and Domestic bank loan for 6.1 MillionBut to complete the project cost has been reached

53.21 Million Birr due to the following majorreasons;


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cont.Expansion

After the above mentioned main machinery erecting time oneadditional Galleta (high energy biscuit) line with a capacity of 100quintals/day is erected in the first half-year of 1988 GC and entered into operation. The investment cost of this line was 1.6 Million Birr.

And in December 1989 GC flour line milling capacity is expanded

from 1200 quintals to 2000 quintals per day and finalized with 9.2Million Birr.The pasta and macaroni production lines expansion erection arefinalized in March 1990 GC with about 55 Million Birr cost and theirproduction capacity are about290 quintals and 380 quintals per day

respectively.The bread production line is also installed with about 4.9 Million andstart operation in October 1991 GC. It has production capacity of 80quintals per day.


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CONT.Vision

The vision of the company is to be a famous pasta producer

with the known brand VERA in East Africa and COMESA

member countries, fulfilling the internationally accepted

standards.

Mission

The organization mission of the company is to produce

quality flour and flour based products to the best satisfaction

of the customers based on FOOD SAFETYMANAGEMENT SYSTEM (FSMS), ISO 22000:2005 and

ISO 14001:2000 Environment system requirements.


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CONT.

2000 Quintal/day Wheat Flour

450 Quintal/Day Pasta

620 Quintal/Day Macaroni

130 Quintal/Day Biscuit

130 Quintal/Day Bread


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Cont.

OBJECTIVES IN GENERALThe objective of the company is to produce & sell flour &flour related products profitably.The company has been already playing the role ofsubstituting the import and this will be kept in the planning

year.The company strives to produce quality products and keep itsreputation by maintaining the implemented managementsystems.

The company tries to stabilize the food price escalation bydistributing products to the government institutes, marketcorporatizes and to the public at large with reasonable price.


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CONT.Major Products Of The Company

Wheat Flour

Vera Spaghetti

Vera Tegletelli

Vera Bucatini

Vera Macaroni(Various Shapes)

Vera Pastini

High Energy Zebib Biscuit

Fruit Biscuit Bread

Animal Feed


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How I get in to the company

According to Jimma university Jimma institute of Technology MechanicalEngineering curriculum in our four year mechanical engineeringexperience we began to realize that this world is only can go far ininnovation and creating things that uses to provide for humans best needto achieve their needs energy is must. Especially, mechanical energy.In the study of mechanical engineering many problems are solved

and if the study widens its horizon students are able to solve manyproblems related to industries in the future. In our world food is the firstneed of human being. So, I decided to practice in food factory which isDire Dawa Food Complex SC and tell to JUIL. The letters that asks forinternees to do my internship program in the DDFCSC is given to me

from JUIL. The latter is accepted by the company managers and theyallow me as joining the DDFCSC staffs and Workers after 6 month ofapplication and after that on 4th year 2ndsemester I went to DDFCSCstart practice.


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T H E S E C T I O N I H AV E B E E N WO R K I N G

There are many section of factory which I have beenworking in the following

Flour mill section

Pasta production section

Macaroni production section

Biscuit production section

Animal feed section

Garage section


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H O W D O E S T H E W O R K F L O W I N T H E S E C T I O N I

W O R K L O O K S L I K E ?


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T H E T H I N G S I H AV E A C C O M P L I S H E D I N

D D F C S C

I have engaged myself in a lot of duties just not to sit and watch the four months

gone by in idle and in vain. I do not under estimate rather I have been taking my

hands to help the workers. Some of the works I have been undertaking were the

following:-

I have been substituting the worned bearing of flour mill machine I have helped in disengaging motors which are prone for random damages.

I have Searching a problem in factory

I have designed and made load cart for pasta transportation.

I gave them suggestion for different problem.

I have helped them during repair of screw conveyor.

I have saw all over part and mechanism of CNC machine also manual.


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REPLACING OF BEARING


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PROJECTLoad Cart Design

Specification

Load capacity 30 packet each 10Kg = 300Kg

Height 730mm

Length 1000mm

Width 820mm

Weld construction

Wheeel is bolted with chases of cart.

This a single cart can reduces the human labour power with is working daily

labour of loading & unloading section by 14.00% of 107 workers.


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CONT.The time consumed by one worker to take two packets of pasta from

production size to store is takes an average time of 3 minutes. This implies, when a

single worker goes 15 round the consumption of time reach 45 minutes. Whereas

this design cart reduce the time that the worker rounds once at a time.

To make the packet Safe the packed past must be setted as up Side.This Cart Is:-

MaintainableReliableAppropriateMinimizes costMinimizes WorkersHave & long LifeNon environmental pollution


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D E S I G N C O N S T R U C T I O N

Designing a part for expected life of the Cart.

For rolling surface.

Factors of safety & allowable stress.

Selecting bolt diameter

Design of welding part in each joint.

Design of load carrying capacity.

Design of load carrying capacity.

Material selection.

Cart analysis


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W H A T M A K E S T H I S C A R T D I F F E R E N T ?

From all structure of the cart the two size of the cart can be disassembled to

simplify the loading and unloading press from to the cart easy. In the same

procedure this can be applied and we can carry motors or other parts of

machine with are below 300kg from one place to another.

The size of the cart is filled with size of pasta packet to make the

transportation of pasta safe.

It is only design for DDFCS.C.

Future

Inserting brake

Motor and batter


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MA T E RI A L S E L E C T I ONA range of load cart is constructed from a variety of materials depending

on the industry or the product in which they are being used for. Finest qualitymaterials are used to manufacture load cart for ensuring reliability, ease of

maintenance and long life. The specialty load cart materials undergo vibrationand endurance test to ensure that the end product is of premium quality.

The factors which should be considered while selecting the material for a

machine component are as follows: Availability,

Cost,

Mechanical properties and

Manufacturing considerations

Depending up on above criteria I select the following material for cart construction.

Steel angle

RH steel

Wheel

Wood block


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The ideal bolt length is one in which only one ortwo threads project from the nut after it is tightened. Bolt holes may haveburrs or sharp edges after drilling. These could bite into the fillet and

increase stress concentration. Therefore, washers must always be usedunder the bolt head to prevent this. They should be of hardenedsteel and loaded onto the bolt so that the rounded edge of thestamped hole faces the washer face of the bolt. Sometimes it is necessaryto use washers under the nut too.

The clamping load stretches or elongates the bolt; the load is obtainedby twisting the nut until the bolt has elongated almost to the elasticlimit. If the nut does not loosen, this bolt tension remains as the preloador clamping force.


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We get the dimension of Bolt and Nut from theTable of Limiting

Dimensions of Standard Series Threads for Commercial Screws, Bolts,

and Nuts(1)For Bolt

Nominal size diameter = 5mmPitch P = 0.8

Basic thread designation = M5

Tolerance class = 6gAllowance = 0.024

Major diameter

Maximum = 4.976

Minimum = 4.826Pitch diameter

Maximum = 4.456Minimum = 4.361

Tolerance = 0.095


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Minor diameterMaximum = 3.994

Minimum= 3.841For NutNominal size diameter = 5mmTolerance class = 6HMinor diameter

Maximum = 4.334mm

Minimum = 4.134mmPitch diameter

Minimum = 4.480Maximum = 4.605Tolerance = 0.125

Major diameter

Minimum = 5.000Therefore, the thread length 16Nominal Nut Dia. And Thread Pitch = M5x0.8


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CONT.Width across flats of nut, S

Maximum = 8.00Minimum = 7.78

Width across corner, EMaximum = 9.24

Minimum = 8.79Thickness, M

Maximum = 4.70mmMinimum = 4.40mm

Bearing face dia, Minimum = 7.0mm


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American National Standard Metric Plain Washers ANSI B18.22M-1981,R1990

Washer

Nominal Washer Size = 5mmNominal washer sizes are intended for use withcomparable screw and bolt sizes.Washer Series is narrow.Inside Diameter, A

Max. = 5.78Min. = 5.50

Outside Diameter, BMax. = 11.00Min. = 10.57

Thickness, C Max. = 1.40Min. = 1.00


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CONT. Fastener length: > + 1 6 . 4 0 + 4 . 7 0 2 1 . 1 0 Length of useful unthreaded portion: 2 1 . 1 0 1 6 7.10 Length of threaded portion: 21.107.1014Area of unthreaded portion: () 19.635Area of threaded portion:

14.2from table 8-1 of shigleys

Mechanical Engineering Design

Fastener stiffness: : ..

.:.. 153/Where

= tensile-stress area

= length of threaded portion of grip =major-diameter area of fastener =length of unthreaded portion in grip


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E F F E C T I V E G R I P

+ , < + , 5 , 5Then +10+1. 4011. 40 11.40+ 13.90


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Fastener length:

> + 1.5 11.40 +1.5 5 18.9Length of useful unthreaded portion: 18.9162.90Length of useful threaded portion: 13.902.9011Diameter of the washer face is about 5%greater

than the fastener diameter for standard hexagon-

head bolts & cap screws.


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D E S I G N F O R W E L D I N G P A R T

Assume the column as a cantilever beam which isup side and performing an adequacy assessment

statically loaded cantilever carrying 367.9Ndeflected in the following figure and the cantilever

is made of AISL1018HR steel and weld as shownin figure. AnE6013 electrode was used and designfactor was 1.


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h = 5mm, b = 40mm, d = 60mm

A = 1.44h (b + d) = 1.44*5 (40 + 60) = 720 20 , 30The unit second moment of Area is:-

3 + ()

3 40 + 60 108000

The Second moment of Area is based on weld throat area is:-0.707 0.7075108000381780The nominal throat shear stress is now found to be

Primary shear

4.088


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WELDING SHAPE


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w e l d i n g d i a g r a m Diagram showing the weld geometry; all dimensions in mm. Note that V and

M represent loads applied by the welds to the plate.


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F I N D T H E D I S T A N C E

60/2 + 40/2

36.06The secondary shear stress is

M = 650*2.943N = 1912.95 N.m

.(). 180.68 Factor of safety 0.577 0.40 1.44The minimum weldmetal properties is E6013 which is

427 345 From Table9.3


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c o n t . The stress permitted by the AISC code for weld metal with applied force of load for

shear on fillet permissible stress 0.03 0.034271282 , 1 From the Table A-6

Properties of structural steel Angle:-

ALSI1018HR

400 ,

220

The shear magnitude is the Pythagorean combination + 180.68 + 4.088 180.73


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l o ad f o r c e o n t he bas e o n t he c a r t be am


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c o n t .

.

2648.7

@ 0, . 2.94301324.35 @ /2, . 2.9434500@ , . 2.9439001324.35 The bending momentum on the difference distance is

@ 0, 0 @ /2, . 900 450 595957.5 @ , . 900 900 0


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c o s t an a l y s i s


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3 D D R A W I N G O F L OA D C A R T


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D E T A I L D R AW I N G O F C A R T


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T H E P R O C E D U R E S I H AV E B E E N U S I N G W H I L EI P E R F O R M M Y W O R K

I have list down some of the procedures as follows:-

Visiting all section of factory with the mechanics and technicians.

I ask my supervisor, some mechanics, technicians and my friends about the

ideas I have not understand.

I write down some points while people brief me with new terms.

I have tried to discuss a lot of issues with my friends

Refer manuals

Try to take caution while I work on different machines in the workshop.

Take a heed not to transgress any forbidden laws.


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H O W G O O D I P E R F O R M M Y W O R K I N T H E

C O M P A N Y

I have been in good condition while performing my task since I have covered almost alltheoretical knowledge.so, it becomes suitable for me to upgrade into practical aspect.

All of our team members are hard workers and have good motivations so this makes my task

easy to perform in a good manner.

Beside this most of the workers in the factory are ready to assist me.

Even though there were a lot of challenges and unsuitable conditions, I tried my best to

struggle against those harsh conditions to achieve ultimate goal.

I realize and even begin to think and wonder about the things I have come across in

beating my wishful mind. So, now I am very amused over my understanding of my working

environments which have made me very curious about my prospects.

Finally, as of me I could say that I have measured my performances to be very satisfactory

since they have equipped me with the appropriate knowledge


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C H A L L E N G E S I H A V E B E E N F A C I N G D U R I N G M Y

P R O J E C T W O R K . During my project work there was different challenges exist to decline my

readiness & moral to minimum point, some of these are;

The general manager of company cant understand design project (not

engineer),

The company government system,

The unwillingness of some formance to help me,

Over work of the manager in each department,

guards who those keep the inside & outside entrance gate of the company,

Non voluntary body(department managers)to give data & make an interview,

Lack of library, internet access & some reference about the operation machines.

No office, no pocket money,At least no one mechanical engineer in the technical staff.

The weather condition is very hot and humid temperature.


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C H A P T E R T H R E E


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O B J E C T I V E S

To identify the major benefit that can be gained from an

internship program,

To relate theoretical knowledge with the practical one,

To show to the interns what interface is there when they

conduct in such area after graduation,

To relate the interns with the common obstacles who

those must straggle


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I M P R O V I N G P R A C T I C A L S K I L L S

Over the last four months, I can say that I have improved my previous skills

and I even developed new practical skills. Without a doubt internship program

ideas is the most basic and necessary, because the following critical elements.

Broad technical knowledge of mechanical elements.

Outstanding project skills.

I learned how to motor winding is done. A sophisticated appreciation for the flexibility and innovation required in our next

business world and to my final project.

I improved my welding skill.

I know how to cut materials using different kinds of grinders and cutters.

I advanced the talent of working in noisy work shop.

In addition to the above critical elements we understand how many differentmechanical elements are closely connected and work together successfully.

I can develop my skill by participating myself into different part as I had learnedtheoretically in my department course. Among them:


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U P G R A D I N G T H E O R E T I C A L K N O W L E D G E

Today as we are mechanical engineering students and at the future we are a

professional mechanical engineers we need to develop our problem solving skills,

project making ability, creativity and energy to make sure that all of the mechanical

engineering issues should be handled in a way that would support our business

objectives without compromising our strong commitment to our world. This set of

skills made the engineers a critical problem solver in every phase of his progression. Therefore this internship program may develop our theoretical knowledge through

what we call it and also my way of way of writing daily report may also increase of

theoretical knowledge because I interpret what I seen in our real eyes and work

practically into theoretical knowledge to this I am daily worked depending upon the

manuals which was I obtained from the factory this may increase because all the

manuals I had in place was graphically prepared this may increase my way of

visualization.


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I M P R O V I N G I N T E R P E R S O N A L C O M M U N I C A T I O N S K I L L S I was develop the following characteristic

Communication skill.

Problem solving

Motivation

Negotiation & conflict control-to reach an agreementPoliteness

Being openness

Selfconfidence

Honesty

Personal right & obligation


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I M P R OV I N G T E A M P L AY I N G S K I L L S

I can develop very interesting behavior that is neverhappened before. I can improve

How can be patient

Giving respect for other

How can Make Close relation with the community of my

environment

Develop listening skill

Problem solving together.


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I M P R OV I N G L E A D E R S H I P S K I L L SI have got the following progress:

How can establishing direction as a leader of a team

Aligning people

Motivating & inspiring

Focus on team & overall goals

Communication with each people under my control

To be a leader not to be a boss .this slogan looks simplebut it is a backbone to the whole process.

To update oneself if anybody wants to be a leader. This isgone left the Leader with charismatic characteristics.

To built and believe that leadership is dynamic.


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U N D E R S T A N D I N G A B O U T W O R K E T H I C R E L A T E D I S S U E S

The followings are some personal and professional ethics

Personal ethics:

Fairness

Compliant to the law

Benevolence (doing good)

Refusing to take unfair advantage

Professionals ethics

Punctuality

Office disciplines

Impartiality

Transparency. Accountability and openness

Integrity

Due diligences


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E N T R E P R E N E U R S H I P S K I L L S :

As Entrepreneurship is the process of creating something new with value by devoting

the necessary time & effort, assuming the necessary risks, & expecting rewards for undertaking,from this internship

Program I gained different ideas to:

Make myself free from the limit of standardized pay for standardized work(profit)

Freedom from supervision & rules of bureaucratic organizations(independence)

Freedom from routine, boring & unchallenging jobs(satisfying way )

And it makes me interested in:

High need for achievement

Willingness to take risks

A need to exercise leadership

Self-confidence

Creativity


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R E C O M M E N D A T I O N

The company should have to use schedule maintenance to minimized high downtime,

Safety materials for all the welding types, sanding, and grinding such as gloves, goggles

and others are not enough.

The rigidity of the company is not limited but extended to not to provide resource and

facilities such as library, internet access and other reference materials for the staff reference

and for the intern students to progress for any type of intended project for further insight

should be fulfilled.

On the other hand, neither no pocket money is given by the company nor the pocket

money given by the university to the internship students is enough. It may be difficult to

survive for students from poor background. The serious of sense of punctuality and team

working in the company should be admired and promoted for further success.

Lastly, I believe that this internship has to be continued since it has got lot of virtues.


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C O N C L U S I O N

The internship semester makes the new curriculum. So good to give real practical skills

and make the students familiar to the outside world. Generally I get the following

benefits:

Allow me to both make and develop professional contacts, for my future job search.

Assist me in developing greater understanding of my own strength and weakness.

I know the companys workflow.

Upgrade my theoretical knowledge.

Knowing the local design standards.

I Progress leadership skills.

I identify working standards.

I recognize time management


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R E F E R E N C E S

JIT Outline internship reports

http://www.brightonk12.com/webpages/mjourden/general.cfm?subpage=13

05723

ShigleysMechanical Engineering Design, Eighth Edition

26thEdition Machinerys Handbook BY ERIK OBERG , FRANKLIN D. J

ONES , H OLBROOK L. HORTON , AND HENRY H. RYFFEL.

Marks Standard Handbook for Mechanical Engineers.

Different internship report
http://www.brightonk12.com/webpages/mjourden/general.cfm?subpage=1305723http://www.brightonk12.com/webpages/mjourden/general.cfm?subpage=1305723http://www.brightonk12.com/webpages/mjourden/general.cfm?subpage=1305723http://www.brightonk12.com/webpages/mjourden/general.cfm?subpage=1305723


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interniship PRESENTATION 2.pptx