work shop safety report

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DUHOK POLYTECHNIC UNIVERSITY
COLLEGE OF TECHNICAL ENGINEERING
DEPARTMENT PETROCHEMICAL
Final Report
WORKSHOP AND INDUSTRIAL SAFETY
Metal sheet workshop
AMAR ASKANDAR
Group. B
Report No. 1
Date of the lecture 26/06/2020
Delivery date. 04/07/2020
2091
2002
BY:

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Introduction:
Sheet metal work has its own significance in the
engineering work. Many products, which fulfill
the household needs, decoration work and
various engineering articles, are produced from
sheet metals. Metal is a solid material which is
typically hard, shiny, malleable, fusible, and
ductile, with good electrical and thermal
conductivity Metal sheets deals with working of
thin metal sheets using hand tools and simple
machine.
Objective:
 To use straight & curved snipers.
 To work with precision & and to know
planning with drawing.
 Using simple machines (rolling device
& bending device).

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Metal of sheet used in workshop:
Metal sheet that is used in this workshop
mustn’t be crossed over 1mm.
Galvanized Iron: It is soft steel coated with
molten zinc. This coating resist rust, improves
appearances, and improves water resistance.
Pans, buckets, furnaces, cabinet etc. are made
from Gl sheets.

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Black Iron Sheet: It is the cheapest among ail. It
has a bluish-black appearance and is uncoated
sheet. Being uncoated, it corrodes rapidly. The
use of this metal is limited to articles that are to
be painted or enameled such as stovepipes,
tanks, pans etc.

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Aluminum: Aluminum cannot be used in its pure
form, but is used in alloy form. Common Additions
are copper, silicon, manganese and iron. It is used in
manufacturing of a number of products such as
refrigerator trays, household appliances, lighting
fixtures, window work, construction of airplanes and
in many electrical and transportation industries.

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Tin: It is an iron sheet coated with the tin to
protect it against rust. This metal has a very bright
silvery appearance and is usedprincipally in
making food containers, cans and pans.

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Lead: It is a very soft. It is having low
mechanical strength so it is used to provide
lining to the highly corrosive acid
tanks

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Products of sheet metal workshop:
 Cabinets
 Cans
 Air ducts
 Pots & appliance
 tanks
Tools of metal sheet workshop:
 steel rule
 tape
 Verne
 Mallet
 Steel(iron) hammer
 Anvil
 Vise
 Divider
 Straight & curve sniper
 Scriber
 Rod

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Safety in the workshop:
1.Safety in the workshop is the most
important. Workshops are non-laboratory
situations where machinery and/or tools are
used, in an indoor or outdoor situation. 2.All
workshops and stores must be under the
direct control of a supervisor, who is
responsible for ensuring they are
maintained and used in a safe and healthy
manner.
3.All persons using workshops and stores
should apply good housekeeping
practices, wear appropriate clothing.
4.A tidy workplace makes it easier to spot
and avoid hazards, and does not interfere
with normal work operations.

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The figure below shows rolling device
The figure below shows bending device

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Procedure for the first exercise {straight
sniper}:
For the first exercise {straight sniper}, first we
put the big plate of galvanized iron on the anvil,
then we cut the big plate of galvanized iron into
small sheet using a pen & a ruler for drawing.
Then shearing the plate into a long sheet with
the width of 120mm then shearing it to 100 mm
long sheet using straight sniper. Then I used to
draw on my sheet by a pen & an iron ruler with
10mm down from the top, then making a straight
line along the width using pen & an iron rule.
After that making many line from 10mm down
the space between each line must be 5mm by pen
& an iron ruler. Finally using straight sniper for
shearing each line till the straight line down to
10mm. after finishing shearing I used a mallet
which is a soft hammer for making my sheet
straight.

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Procedure for the second exercise {curved
sniper}:
For the second exercise {curved sniper} first we
put the big galvanized iron plate on the anvil,
then drawing the width of 120mm on the plate
by pen & ruler, then shearing the plate into a
long sheet using straight sniper. After that I shear
the long sheet into 120mm length using straight
sniper. Then I used a pin with a hammer for
making the center of my sheet. After that using
pen & an iron ruler for drawing two lines from
the angle of the top of the sheet to the opposite
the down angle of the sheet. Then drawing
another line from the middle of the sheet to
down & another line from the middle of the right
side to the left side of the sheet. Then making a
line from the center with 10mm long to down of
the center and making a straight line to the right
side of the sheet for getting a rectangle. After
that using straight sniper for cutting one of the
square part above the center, then drawing

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Circles with the divider the space between each
how delet the sheetCircle must be 5mm except
the last circle which must be 15mm spacing
from the center. Finally shearing the circles with
curved sniper till the rectangle. After finishing
all the shearing I used a mallet for straitening my
circles.
Procedure for the third exercise {using
simple machines}:
In this exercise we used simple machines
{bending & rolling devices} for making a
cylinder. We draw on the sheet by pen and an
iron ruler then we shear the sheet into 160mm
wide & 120mm long using straight sniper. Then
I draw a line with 5mm long in the horizontal
from the bottom of the width same process on
the other side. Then I put my sheet on the
bending device for bending the both side of my
sheet. After that I used rolling device for rolling
my sheet into a cylindrical shape. Finally I used
a hammer for straitening my cylinder consist of
48mm diameter.

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Discussion:
The first exercise was difficult for me because
shearing each line with spacing 5mm need a lot
of time with patient and focusing. Also using
straight sniper for the first time effect my time
for finishing the exercise. I learned from this
exercise how to focus and to be patient while
working. The second exercise for me was easier
than the first one because I learned how to use
snipers so it makes my work easier with a shorter
time for finishing. But the third exercise wasn’t
that difficult for me but it needs a lot of power
so some of my friends helped me for completing
my cylinder.

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Reference:
https://www.otago.ac.nz/health-
safety/hazards/otago064790.html
http://bvrit.ac.in/Freshman_Lab_Manuals/Engineering%2
0Workshop/files/assets/basic-html/page41