MOTORISED Press Durga Poly 2016

7/25/2019 MOTORISED Press Durga Poly 2016

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ABRICATION O MOTORISED

PUNCHING MACHINE

Submitted in the partial fulfillment of the requirement for the award

DIPLOMA IN MECHANICAL ENGINEERING

SUBMITTED BY:

1. D. VADIVEL 4. K. VIMAL KUMAR

2. G. MOHANAM 5. A. VENKATESAN

3. K. ANBU 6. P. SARAVANAN

Under guidance of

S.N. SUNDAR, M.E.

N!EMBE" #$%$

DEPARTMENT OF MECHANICAL ENGINEERING .

A.M.K TECHNOLOGICAL POLYTECHNIC COLLEGE

CHENNAI 602103


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A.M.K TECHNOLOGICAL POLYTECHNIC COLLEGE

CHENNAI- BANGALORE ROAD

SEMBARAMBAKKAM

CHENNAI 602103

BONAFIDE CERTIFICATE

Thi& i& to certif' that thi& (ro)ect wor* on

+FABRICATION OF MOTORISED PUNCHING MACHINE,

&ubmitted b' -------- -----. "eg. No. -----

in partial fulfillment for the award of

DIPLOMA IN MECHANICAL ENGINEERING

Thi& i& the bonafide record of wor* carried out b' him under our &uper/i&ion

during the 'ear #$%$

Submitted for the !i/a0/oce e1am held on -----..

2..D ("3E4T 5UIDE

INTE"N67 E86MINE" E8TE"N67 E86MINE"


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ACKNOWLEDGEMENT


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ACKNOWLEDGEMENT

6t the out&et9 we would li*e to empha&ie our &incere than*& to the

(rincipal Mr. R.. K!MAR" M.E.F.I.E" M.I.S.T.Efor encouragement and

/aluable ad/ice.

we than* our E&quired 2ead of Department Mr. R. RAK!MAR" M.E.for

pre&enting hi& felication& on u&.

;e are grateful on our Entourage& Mr. S.N. S!NDAR" M..E.


5/76

CONTENTS


6/76

CONTENTS

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7/76

INTROD!CTION


8/76

INTROD!CTION

Thi& pro)ect concentrate& on pro/iding de&cription& of all the ba&ic

operating principle& and de&ign of &olar cell.

In our technical education the pro)ect wor* pla'& a ma)or role. E/er'

&tudent i& put in to &imulate life particularl' where the &tudent required

bringing hi& *nowledge9 &*ill and e1perience of the pro)ect wor*.

It help& how to e/ol/e &pecification& under gi/en con&train& b'

&'&tematic approach to the problem a con&truct a wor* de/ice. (ro)ect wor*

thu& integrate& /ariou& &*ill& and *nowledge attainment during &tud' and

gi/e& orientation toward& application.

6& the &tudent& &ol/e the /ariou& problem& e1po&ed b' the pro)ect

wor*9 the &tudent& get the confidence to o/ercome &uch problem& in the

future life. It help& in e1panding the thin*ing and alternati/e& for future

application&.


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SYN(SIS


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SYNOPSIS

(re&& wor*ing technique& utiliing large quantitie& of economical

tooling equipment de&ign and it quic*l'9 accuratel' and economicall' cold

wor*ing of mild &teel and other ductile material&. The component produced

range o/er an e1tremel' wide field and i& u&ed throughout indu&tr' foreconomical production of quantitie& of pre&&ing con&ideration ha& to be

gi/en to the rate of production. The co&t of the pre&& tool to be emplo'ed .

(re&& ma' be defined a& the chip le&& manufacturing proce&& b' which

/ariou& component& are made from &heet. Mo&tl' pre&& u&e fabricated part&

of incite &hape with thin wall&. It u&e& large force b' pre&& tool& far &hort

time inter/al

which re&ult& in cutting a &haping the &heet metal . In the earl' da'&9 metal

forming pre&& u&e &imple cran* and le/er mechani&m that con/ert rotating

motion into linear motion with the help of punchFram. The rotating motion

achie/ed b' motor and linear motion achie/ed b' punch or ram9

punch applied on wor*piece .


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SCOPE ANDIMPORTANCE OF

PROECT WORK


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SCOPE AND IMPORTANCE OF PROECT WORK

Enable& to &how the intrin&ic *nowledge of the indi/idual.

Enable& to de/elop the abilit' of the de&igning and de/eloping factor&

and it& application&.

Enable& to induce the collection of technical data and other related

&tandard data from the wor*.

Enable& to appl' the technique& of method &tud' and time &tud'.

Enable& to ha/e a complete *nowledge of the particular wor* which

the' ha/e de&igned and fabricated.


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OBECTI#ES


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OBECTI#ES

The following are the main ob)ecti/e& of our pro)ect

To pro/ide Smart hole and good bore fini&h.

To manufacture /ariou& &ie& of punch machine.

Un&*illed 7abour i& &ufficient

To co/er more area with minimum con&umption of operational time.

To impro/e entrepreneurial &*ill&


16/76

SELECTION OF

PROECT


17/76

SELECTION OF PROECT

Modern indu&trie& and bu&ine&& e&tabli&hment ha& become /er'

comple1 and competiti/e in ma*ing up of machine& ba&ed on their own

*nowledge and &*ill.

;e preferred to ma*e the motoried punching machine9 which i&

&imple in con&truction and de&ign. It can be u&ed in &mall &cale indu&trial9

dome&tic and pla' ground.. Thi& unit require onl' %#!D4 electrical

power..

Mo&t of them prefer for machine with le&& co&t and more life. The

(unching machine i& made up of mild &teel material and coated with

primer. The unit can ea&' to operate and i& harmle&& to people who ma*e&

them and al&o who u&e& them.


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CONSTR!CTION


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CONSTR!CTION

Thi& unit con&i&t& of

%G rotating cran*

#G D4 Motor with built in &peed reduction gear

bo1

=G "otating &haft with plummer bloc* &upport

?G M.S.


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DC M$%$r &'%( )*'+% ', // r/*%'$, /r )$4

Thi& D4 motor i& &hunt t'pe %#! D4 motor. Thi& motor i& ha/ing built

in t'pe &peed reduction gear bo1 unit. It ha& high torque and low &peed

capacit'. The electrical &uppl' to the motor i& from %# ! D4 power &uppl'.

The D4 Motor dri/e& the chain wheel and gene/a wheel mechani&m.
http://www.globalspec.com/datasheets/2353/AlliedMotionTechnologies/46F2F292-6B04-4195-A266-E98405FCE0EA


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Cr,5 , $,,/%', r$ /(,'7

6 cran*&haft ha& one Hor moreG off&et &ection& where a connecting rod i&

attached r$*,it. The connecting rod mo/e& bac*0and0forth Hor up0and0

downG ONCEfor e/er' rotation of the cran*&haft. The cran* will alwa'&

mo/e in a circle9 mo/ing the connecting rod in a &mooth &ine wa/e li*e

motion. The power can flow in either direction. That i&9 the cran*&haft can

dri/e the connecting rod9 or the connecting rod can dri/e the cran*&haft.

3.Fr/ S%,

Thi& ba&e frame &tand made in #@mm 1#@ mm 1 =mm M.S. l angle and i&

u&ed to hold the entire mechani&m and &upport the motor al&o.


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PRINCIPLE OF DC MOTOR

6 D4 motor i& a dc machine wor*ing a& a motor to con/ert dc

electrical energ' into mechanical energ' HdcG motor are /er' commonl' u&ed

in car&9 truc*&9 aircraft&9 etc. The' are al&o u&ed in large rating&9 where wide

range of &peed control i& nece&&ar'.

;hen a conductor i& carried a current and in l'ing in magnetic filed.


23/76

RATINGS OF MOTOR

Motor& are rated b' their /oltage9 current draw9 output &peed9 and torque.

O/r%', #$+%/

Operating voltage&pecifie& the nominal HnormalG /oltage the manufacturer

recommend& for the motor. Mo&t &mall D4 motor& are de&igned for %.@ to %#

/olt operation9 with the ma)orit' in the =0A /olt range. 7arger D4 motor&

de&igned for hea/'0dut' application& u&uall' require %# to #? /olt&9 with

&ome needing upward& of $ /olt&. ften9 but not alwa'&9 the higher the

/oltage9 the more powerful the motor Hthi& doe& not appl' to &tepper motor&9

where /er' low /oltage& on the order of )u&t a few /olt& are common

for hea/'0dut' motor&G. Mo&t motor& can be run at operating /oltage& higher

or lower than the &pecified rating.

7ower /oltage& reduce torque and &peed.

2igher /oltage& increa&e torque and &peed.

HNote:


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Current drawi& the amount of current9 &pecified in milliamp& or amp&9 that

the motor require& to produce a certain amount of torque. Motor& con&ume

different amount& of current depending on how the' are operated:

No-load. 6 motor that doe&nJt ha/e an'thing attached to it& &haft

i&nJt doing an' wor*9 and i& &aid to be free0running. No0load current

tend& to be /er' low.

Load. 6& the motor doe& wor*9 it& load and current draw increa&e&.

Manufacturer& rate the current draw under load u&ing different

&tandard&9 ma*ing it hard to )udge a motor u&ing thi& &pecification

alone.

Stalled. ;hen the motor &haft &top& rotating9 it +&tall&, and draw& a&

much current a& will flow through the winding&. Thi& &pecification i&

u&eful for +wor&t ca&e &cenario, engineering planning.

Shorted. Ma1imum current flow& into the motor when the coil& are

&horted out. The motor will not run9 and li*e an' &hort circuit9 if

operated in thi& wa' for an' length of time9 &eriou& damage can re&ult

to other &'&tem& on the robot.

T$r8*/

Torque i& the wa' the &trength of the motor i& mea&ured. It i& t'picall'

calculated b' attaching a le/er to the end of the motor &haft9 and a weight or

gauge on the end of that le/er. The length of the le/er u&uall' depend& on theunit of mea&urement gi/en for the weight. E1ample&:

Metric mea&urement& u&e Newton meter& HNmG9 *ilogram&0force

meter& H*gf0mG9 or &ometime& gram0centimeter& Hgm0cmG.


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Standard mea&urement& u&e ounce0inche& Ho0inG9 or pound0feet Hlb0

ftG9 or pound0inche& Hlb0inG. ItJ& common to re/er&e the nomenclature

and call it foot0pound& and inch0pound&.

S//

Thespeedof the motor indicate& how fa&t it& &haft i& turning. D4 motor&

without a gearbo1 &pin at =9$$$ to o/er %#9$$$ "(M Hre/olution& per

minuteG. ;ith a gear bo19 the &peed can /ar' from under % "(M9 on up.

Stepping motor& are not rated in "(M9 but pul&e& Hor &tep&G per &econd. The

&peed of a &tepper motor i& a function of the number of &tep& required toma*e one full re/olution9 time& the number of &tep& applied to the motor

each &econd. T'pical /alue& are #$$ or =$$ ((S.


26/76

WORKING PRINCIPLE


27/76

WORKING PRINCIPLE

The machine i& &eated without an' /ibration.

The machine can ma*e punching without gi/ing much effort..

The cutting die placed at the connecting rod which i& reciprocated

b' the cran* wheel b' the motoried dri/e.9

;hen the motor i& rotated 9 the cran* wheel i& rotated and hence

the punching die with connecting rod al&o mo/ed.

The machine i& mo/ed on the )ob.

During it& mo/ement the connecting rod with the die are forced

on the )ob to ma*e punch.

The hole i& cut b' the die &et and the )ob i& remo/ed.


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MAIN PARTS AND

DESCRIPTION


29/76

MAIN PARTS AND DESCRIPTION

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DESCRIPTION OF THE

COMPONENT


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DESCRIPTION OF THE COMPONENT

BASE

Ba&e i& the foundation of the machine9 which with&tand& the /ibration

of the machine and tran&mit& it to the ground. It hold& the machine part&. It

ha& the pro/i&ion for holding the ba&e plate. Two trolle' wheel i& fi1ed to

the ba&e.

BASE PLATE

It i& the bac*bone of the machine. It i& mounted to the main &haft b'

mean& of the plummer bloc*..

MAIN SHAFT

The &haft mu&t ha/e &ufficient thic*ne&& to a/oid bending9 due to hea/'

load and /ibration&. The' &upported o/er the ba&e b' mean& of the &lee/e.

The pulle' i& fi1ed to the main &haft that tran&mit& the power to the ba&e

plate b' mean& of ! belt dri/e tran&mi&&ion.

#-BELTS


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! belt i& a mechanical member that i& to tran&mit the motion from

one to another pulle'. It i& made up of a hardened rubber. ! belt i& u&ed

becau&e of it& le&&er &lippage and high ten&ion.


33/76

DESCRIPTION OF

MECHANICAL PRESS


34/76

CLASSIFICATION OF PRESS

6ccording to IS C$A?:#$$# &tandard KL9 pre&& cla&&ified into two principle

categorie& a& h'draulic pre&&e& which operate on the principle of h'dro&tatic

pre&&ure. Mechanical pre&& which utilied *inematic lin*age of element& to

tran&mit power. Mechanical pre&& can be al&o cla&&ified into ba&i& of the

de&ign of the frame.


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36/76

3. ST!DY OF 300T AND 900T PRESS

("ESS :0

6 machine ha/ing a &tationar' bed and a &lideH"amGwhich ha&

controlled reciprocating motion toward& and awa' from the bed

&urface and at right angle to it. The &lide being guided in the frame

of the machine to gi/e a definite path of the motion.

6rbor:0

6 manual or power operated pre&& u&ed to force arbor& or mandrel&into or out of hole& and for &imilar a&&embl' or di&a&&embl'

operation&.

6rch :06 &mall cran* pre&& ha/ing itJ& column& a& upright& wider

&lide flange9 left to right between the column& or to permit larger

&tri*e length&.

6utomatic:0

6 pre&& in which the wor*9 either &eparate part& or &tri*e or &heet

&toc*9 i& fed through the pre&& in &'nchroni&m with the pre&&

operating c'cle and b' mean& other than manual.

Bench :0

6n' &mall pre&& of a &ie to be mounted on a bench or table. The&e

pre&&e& are almo&t alwa'& gap frame and ma'be fi1ed or inclinable.

Bottom dri/e :0

6n' pre&& with the dri/e mechani&m located within or under the

bed. connection& of the dri/e to &lide or &lide& are within or

along&ide the upright.


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476SSI


38/76

6d/antage& include low co&t high &peed and minimum

maintenance.

ST"U4TU"E < ("ESSES:0

(re&&e& are a/ailable in &e/eral different de&ign&. The t'pe& include

permanentl' upright pre&&e&9 &uch a& ad)u&table bed

&tationar'H6DSG9open bac* &tationar' pre&&e&9 permanentl' inclined

pre&&e&9 open bac* inclinable pre&&e&. The inclined pre&&e& often

facilitate feeding and permit fini&hed &tamping& to fall out b'

gra/it' or be blown out b' air at the rear of the pre&&. 4rop frame

pre&&e& are made with either one or two point& of &u&pen&ion.


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&election of a pre&& include &ie 9 force 9 energ' and &peed

requirement&. The pre&& mu&t be capable of e1erting force in the

amount 9 location 9 direction 6& well a& for the length of time

needed to perform the &pecified operation&. ther con&ideration&

mu&t include the &ie and geometr' of the wor*piece&. peration&

to be performed9 no of wor*piece& to be produced9 production rate

needed 9 accurac' and fini&h requirement& 9 equipment co&t& and

other factor&.

(re&& &peed& :0

(re&& &peed i& relati/e from that /arie& with point of reference.


40/76

(re&& integrated with material handling equipment9 feeding and

unloading de/ice& and other manufacturing equipment.

TY(ES <


41/76

The ma1imum &pace or an' part of the ma1imum &pace within a

pre&& for mounting a die.

Dwell :0

6 portion of the pre&& c'cle during which the mo/ement of the

member i& ero or at lea&t in&ignificant. U&uall' refer& to the

internal when the blan* holder in a drawing proce&& i& holding the

blan* while the punch i& ma*ing the draw.

Eccentric gear :0

6 main pre&& dri/e gear within an eccentric a& an integral part. The

unit rotate& about a common &haft with the eccentric tran&mitting

the rotar' motion of the gear into the /ertical motion of the &lide

through a connection.

Eccentric &haft :0

6 cran* with a cran* )oin of &uch &ie that it contain& or &urround&

the &haft. The eccentric with itJ& connection i& u&ed in the eccentric

pre&& and i& al&o u&ed for dri/ing au1iliar' attachment& &uch a& lift

out& and feed&.

Eccentric draw :0

The ma1imum limit& of forming depth which can be accompli&hed

with the multiple action pre&&e&.


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when the inner &lide begin& itJ& dwell0&ometime& called ma1imum

draw or ma1imum depth of draw.


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The &tationar' part of a pre&& &er/ing a table to which i& affi1ed a

bol&ter9 or &ometime& the lower die directl'.

Bol&ter plate :0

6 plate attached to the top of the pre&& bed for locating and

&upporting the die a&&embl'. It u&uall' ha& hole& a& &lot& for

attaching the lower die or die &hoe. Mo/ing bol&ter plate& on &elf

powered for tran&ferring die& in and out of the pre&& for die

&etting .6l&o called rolling bol&ter&9 the' ma'be integral with or

mounted to a carriage. The' are not to be confu&ed with &liding

bol&ter&9 the purpo&e of which i& mo/ing the lower die in and out of

the pre&& for wor*piece feeding.

4apacit'9pre&& :0

The rated pre&& force that a pre&& i& de&igned to e1ert at a

predetermined di&tance abo/e the bottom of the &tro*e of the &lide.

4lutch :0

6 coupling mechani&m u&ed on a mechanical pre&& to couple the

fl'wheel to cran*&haft9 either directl' or through gear train&.

4u&hion :0

6n acce&&or' for a pre&& which pro/ide& a re&i&ti/e force with

motion required for &ome operation&9 &uch a& blan* holding 9

drawing or redrawing9 maintaining uniform pre&&ure on a

wor*piece and *noc*ing out or &tripping or al&o called pad& or

)ac*&. 6lthough u&uall' mounted in or under the pre&& bed. The'

are al&o u&ed in or on the &lide.

(ower :0


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6 term u&ed loo&el' to de&ignate an' pre&& u&ing electrical power a&

compared to manual power.

Single action :0

6 pre&& with the &ingle action.

"am &lide :0

Shut height :0

The di&tance from the top of the bed to bottom of the &lide of a

/ertical pre&&9 with &tro*e down ad)u&tment up9 on mo/ing bol&ter

pre&&e&9 or &hut height i& mea&ured from the top of the bol&ter

Hwhen the bol&ter i& integral with carriageG or the top of the carriage

when the bol&ter i& &eparate.

Slide :0

The main reciprocating member of pre&&9 guided in the pre&& frame

to which the punch or upper die i& fa&tened. Sometime& called the

ram. The inner &lide of a double action pre&& i& called the plunger or

punch holder &lide. The outer &lide of a double action pre&& i& called

the blan* holder &lide. The third &lide of a triple action pre&& i&

called the lower &lide9 and the &lide of a h'draulic pre&& i& often

called the platen.

Slide operation :0

The di&tance between the face of the die mounting &urface of the

inner &lide and the outer &lide of multiple action pre&&e& at open

po&ition.

Stro*e :0

The di&tance between the terminal point& of the reciprocating

motion of a pre&& &lide.

Stro*e& per minute :0


46/76

The &pecified continuou& running &peed of a pre&&. It i& not the no

of permi&&ible &ingle tripling of a pre&& and con&equentl' doe& not

mea&ure the po&&ible production per min9 e1cept when a pre&& i&

running continuou&l'. The no of &ingle tripling per min /arie& with

different t'pe& and ma*e& of clutche& a& well a& with the de1terit'

of the operator.

Top &top :0

6 machine generated &ignal for &topping a pre&& at the

top of a &tro*e.

4US2INS :0

Die 4u&hion :0

Die cu&hion often and more accuratel' referred to a& pre&&ure pod& 9

are u&ed to appl' pre&&ure to flat blan*& for drawing operation&.

The' al&o &er/e a& lift out or *noc* out de/ice& to remo/e

&tamping& from the die&.

(neumatic cu&hion& :0

In cu&hion& of thi& t'pe 9the ma1imum pre&&ure i& controlled b' the

diameter and no of c'linder& and a/ailable air pre&&ure. Shop line

pre&&ure i& generall' u&ed9 but it i& po&&ible to u&e a boo&ter or

inten&ifier to increa&e the air pre&&ure. 6 pneumatic die cu&hion for

a &ingle point pre&& normall' u&e& one c'linder and one pi&ton. Two

ore more cu&hion& ma'be placed on top of one another9 howe/er

when a high capacit' unit i& required in a limited bed area in which

a /ertical &pace i& a/ailable.

7UB"I46TIN :0

"ole of lubrication :0


47/76


48/76

cau&e pre&& wor*ing problem&9 if improperl' &pecified. 7ubricit'

agent& function under all temperature condition& but are lea&t

effecti/e below @$ degree < H%$ degree 4G and abo/e %#$$ < HA?

4G. fat i& a good lubricit' additi/e H &ince it i& attracted to mo&t

metal &urface& and doe& not &tain metalG

("ESS S6


49/76

4'linder mu&t incorporate mean& to pre/ent failure of capabilit'

H&udden lo&& of pre&&ureG

6ir controlling equipment mu&t be protected again&t foreign

material and water entering the pneumatic &'&tem.

Mean& of air lubrication whene/er needed.

Emergenc' &top O deacti/ate the clutch control and acti/ate the

bra*e to &top.

(re&& component& mu&t al&o be de&igned9 &ecured or co/ered to

minimie haard& cau&ed b' brea*age 9 loo&ening and failing or b'

relea&e of mechanical energ'Hin ca&e of brea*ing &pringG


50/76

?$$TNNE9 ST"6I52T SIDED9 noc* Bar& C$mm

Bol&ter Table %C$$1%#$$

2ole& for cu&hion Bol&ter %$1A no&

(4D 4u&hion pin& %@$pcd

Ma1imum Shut height from table

Surface

#$$mm

SD6U HShut down ad)u&tment upG %@$mm


51/76

SPECIFICATION OFC!SHION

Die cu&hion @T

Stro*e of Die 4u&hion %#@mm

IFD of e)ector pin 2ole& in Bol&ter ?$mm


52/76

%G =$$ T (re&&

=$$TN9ST"6I52T SIDED9


53/76

SIN57E 5E6"ED9


54/76


55/76

ELECTRICAL

CIRCUIT DETAILS


56/76

POWER S!PPLY !NIT

INTROD!CTION;

6ll the electronic component& &tarting from diode to Intel I4J& onl'

wor* with a D4 &uppl' ranging from P@! to P%#!. ;e are utiliing for the

&ame9 the cheape&t and commonl' a/ailable energ' &ource of #=$!0@$2

and &tepping down9 rectif'ing9 filtering and regulating the /oltage.

STEP DOWN TRANSFORMER;

;hen 64 i& applied to the primar' winding of the power tran&former9

it can either be &tepped down or &tepped up depending on the /alue of D4

needed. In our circuit the tran&former of #=$!F%@0$0%@! i& u&ed to perform

the &tep down operation where a #=$! 64 appear& a& %@! 64 acro&& the

&econdar' winding. 6part from &tepping down /oltage&9 it gi/e& i&olation

between the power &ource and power &uppl' circuitrie&.

RECTIFIER !NIT;

In the power &uppl' unit9 rectification i& normall' achie/ed u&ing a

&olid &tate diode. Diode ha& the propert' that will let the electron flow ea&il'

in one direction at proper bia&ing condition. 6& 64 i& applied to the diode9

electron& onl' flow when the anode and cathode i& negati/e. "e/er&ing the


57/76

polarit' of /oltage will not permit electron flow. 6 commonl' u&ed circuit

for &uppl'ing large amount& of D4power i& the bridge rectifier. 6 bridge

rectifier of four diode& H? 1 IN?$$G are u&ed to achie/e full wa/e

rectification. Two diode& will conduct during the negati/e c'cle and the

other two will conduct during the po&iti/e half c'cle9 and onl' one diode

conduct&. 6t the &ame time one of the other two diode& conduct& for the

negati/e /oltage that i& applied from the bottom winding due to the forward

bia& for that diode. In thi& circuit due to po&iti/e half c'cle D% Q D# will

conduct to gi/e $.C! pul&ating D4. The D4 output ha& a ripple frequenc' of

%$$2. Since each alteration produce& a re&ulting output pul&e9 frequenc'

# 1 @$ 2. The output obtained i& not a pure D4 and therefore filtration ha&

to be done.

The D4 /oltage appearing acro&& the output terminal& of the bridge

rectifier will be &omewhat le&& than $R of the applied rm& /alue. Normall'

one alteration of the input /oltage will re/er&e the polaritie&. ppo&ite end&

of the tran&former will therefore alwa'& be %C$ degree out of pha&e with

each other.


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FILTERING CIRC!IT;


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LIST OF MATERIALS


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LIST O MATERIALS

Sl. No. 4M(NENT M6TE"I67 U6NTITY

No.

%. 4"6N>0 (76TE MI7S STEE7 %

#. D4 MT" #?!D4 %

=. 5ENE!6 ;2EE7 MI7D STEE7 %

?. S(IND7E HS26 46ST I"N #

1. CHAIN DRIVE MECHANISM STEEL

1


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SAFETY,CARE AND

MAINTENANCE


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SAFETY,CARE AND MAINTENANCE

B/:$r/ *', %(/ (',/" $/ $: %(/ $',% %$ )/ ,$%/ :$r :/%

Documents

MOTORISED Press Durga Poly 2016