8/9/2019 Work Instruction for Bending Rev. 01.01.2013

1/3

The

document

defines

the

procedure to

be

followed

for

the

fabrication.

o

Rout

Cards

&

Drawings.

o

Tracking

List

by

Planning.

.

Machine

allocation

with

proper machine

setup.

o

Material

with specified

qty

&

Bend

operation.

A)

Verify

the

existing

lots from

production,

for

mark

no. with

the help

of approved

Shop

Drawing

&

Rout

Card'

B)

Verify

Profile

(section),

Operation

BEND

type

(cold

or

hot), degree

or

gauge size,

Quantity, Batch,

with

the

help of

Tracking List.

Read

carefully

all

instruction

from

drawing

&

reference

table

of Bend'

C)

After

verification,

affange

the

material

on

the

machine

for

process

to

Bending

operation.

D)

Use

proper

fixtures,

gauges,

bending

die's

&

measuring

instruments

like

Right angle,

steel scale,

gauge, meter,

vernier

caliper,

thermometer

etc.

E) To

follow bending

parameter,

heating

indicator

please

refer TABLE

F)

Check

the

first

piece

at

each

stage

of operation

with

the help of

approved

shop

drawing marked

with

MASS

FABRICATION

and

gauge.

G) Check

first

piece

to offer

QC

Inspector

and every

25n

(frequency

depend

on

rout card

qty.) piece

from

the

lot. Ifany

fault

or

variation

observed,

inform immediately

to shift

Engineer

/

Supervisor.

H) Fill the

report

in the daily

performance report

& update

the

tracking

list without

error.

D

Put

the

required

Qty

with

mark

no.

& further

operation

code on

every bundle

after finished lots.

If

lot is ready

for

galvanizing tagged

rout

card

on the

lots

with

sign by QC

inspector.

J) If

found any Non Conformance

during

the

process

inform to

QC

inspector, take the NCR report

& again

re-offer to

QC

after

completion of

Rework.

K)

Keep

daily

proper

cleaning

of

machine

& House

keeping around

the

machine.

L) Use

proper

Safety utilities on the

shop

floor while

running

the

machine

viz.

Safety

goggle,

ear

muffs/

plugs,

hand

gloves

etc.

After

complete the

lot

as

per

rout

card

qty., transfer to

Galvanizing

with

proper

documents.

al

Lcad man

Shi•¡

Supervlsor

Shift

Supervlsor

QC

Inspector

Supervisor

Lead man

Lead

QC

Inspector

Lead

man

man

Meas.

Tape

I

Vernier

Caliper

Meas.

Tape.l

gauge

Meas.

Tape.l

gauge

ISSUED BY:

•

ƒO

`œÝ

•RƒŠ

APPROVE

8/9/2019 Work Instruction for Bending Rev. 01.01.2013

2/3

a. Bend

Ref. Line

-

+l-2.0mm

b.

Bend

Angle -

+/-

1.0 Degree

• Mr‚¶

RE—Í

‚ ¤

ÇttƒÇ

A::Mild steel(Ms•l

materlal

• k

rade:A36ƒm

SS400/S275JR•l

Follow the shop sketch instructions.Ifno instructiOns in shop sketch then foHOw as

below,

Inside Radius ofBend exceeding l.5tshaH Cold Bend

lnside Radius ofBend lesser than l.5t shall Hot Bend(TEDIP 750•‹

C to 900•‹

C)

(`t'=thiCkness ofmaterial bend)

All Hiah Tensile stee:fHT•l

mater:al

• k

Grade:GR60/GR50/SS540/S355JR•l

AH HT material must process Hot Bend(TEMP 750•‹

C to 900•‹ C)

For

special

steels fabricator

should

consult

steel

supplier

for

bendin

and

te

C•Ú

‚Ñ

CES•

bĂ

¶‚ÞƒÇ

All

Gauges

shall

be

designated

with

Mark

of

Degree

or with

mark

no.

ŒŽd „I

’¬

¨

—[

R„I

ttERFOR ttcBE‡W

D˜e

NE

Œ—C-5ƒÇ

•ÚŒ€B2ƒÆ

‚Ì

`Ob•Œ

asĂ

TapeAvleter

Infrared

Thermometer

Gauge

only

Infrared

Thermometer

MATE.THK•B BEND DEGREE

UPT0 6•‹

HEATING TIPIE

roflle•…

L150)

BEND DEGREE

ABOVE 6•‹

‡ UATING TIPIE

rlle>L150)

BEND DEGREE

ABOVE 6•‹

HEATING TIDIIE

6•c

plEDII THICK MATE

10 MM THIcK MATE

52-55 Sec.

1l M‡W

y

THIcK MATE

55•c

58 Sec.

12 MPITHIcK MATE

65•N

5 Sec.

13‡W

y

‹TH cK MATE

115-130 Sec.

15 MPlTHIcK MATE

110-120 Sec.

140-150 Sec.

16 MIn4 THIcK MATE

135•]

145 Sec.

165•c

175 Sec.

18 Pl‡W

 THIcK MATE

100-104 Sec.

150•]

155 Sec.

180-190 Sec.

20

‡WDII THIcK MATE

106-110 sec.

ISSUED BY:

8/9/2019 Work Instruction for Bending Rev. 01.01.2013

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