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1. UNIVERSITY OF ENGINEERING
AND TECHNOLOGY, LAHORE
Group 8
Presented by:-
1) 2021-ME-533
2) 2021-ME-523
3) 2021-ME-528
4) 2021-ME-538

2.  Metal sheet forming
 Principle
 Types
 Working
 Conclusion

3.  Metal forming is a fabrication process that create
structural parts and component out of metal sheets or
tubing
 A basic metal forming process will bend or deform a
metal work piece to a desired geometry shape

4.  In 1977 during this time they began to build their first machine ,
which produced nail and filters later they came to produced machine
for cutting and deep drawing of sheet drawing of sheet metal
 this led to the idea of forming machine and compete lines to follow
flexible sheet metal working
 In 1987 business activity begin to develop and work request
increase exponentially it became necessary to organize a new
structure to deal with the increased demand for the brother
machinery
 In 2002 the company celebrated its 25 year in operation and the
current complex cover a total area of 60,000 square meters ,of
which 20,000 is the workshop and 15000 square meters make up
the company officers
 In 2004 re styling of the company logo represented the new
direction of the company

5.  There are three major classes of process of sheet metal
working
 Cutting is the use of shearing forces to remove material
from a work piece technically not a metal forming
process, but of extreme industrial importance
 Bending is the forming of a sheet metal work about an
axis
 Deep drawing is the forming of a cup or box with a flat
base and straight walls, from a sheet metal blank
 Other process other sheet metal working process such
as ironing spinning rubber forming and high energy rate
forming are also discussed in latter section

6.  Sheet metal is made by running hot slabs of metal through a
series of roughing rolling stands that makes them thinner and
longer. To make them even thinner, these sheet go through
finishing rolling stands and are then cooled and rolled into
coils.

7. There are two main working operations of metal
sheet:
 Cutting
 Forming

8.  Bending
 Roll Forming
 Spinning
 Deep Drawing
 Stretch Forming
 Shearing
 Blanking
 Piercing
 Notching
 Performing
 Slitting
 Lancing

9. A process in which force is applied on metal
sheet piece to form a desired shape.
 V-Bending
 Air Bending
Source : Adopted from Google Source : Adopted from Google

10. A process in which a metal sheet piece
convert from its plan shape to a roll.
 It’s a machines which you see in fig.1
which convert sheet metal in roll.
 There is also a manual machine in fig.2
Source : Adopted from Google
Source : Adopted from Google

11. Spinning is a process in which metal sheet convert
to a specific shape via spinning.
 You can easily understand the spinning
by video.1 and fig.1
Source : Adopted from Google
Source : Adopted from Google

12. Deep Drawing is also called a bending but in
it, bending is on an extra level.
 In fig.1 and fig.2 there is operation of deep drawing.
Source : Adopted from Google
Source : Adopted from Google

13. In stretch forming process metal sheet
stretch and bent simultaneously.
 In fig.1 and fig.2 there is stretching and bending at same time.
Source : Adopted from Google
Source : Adopted from Google

14. CUTTING OPERATIONS
Shearing is a process in metal sheet is cut to
required shape, also know as cutting die.
 You can see the steps and process in fig.1 and fig.2
Source : Adopted from Google
Source : Adopted from Google

15. Blanking is the operation of cutting a flat shape
from sheet metal. The produced product is called blank.
 As you can see in fig.1 there is a punch
which is punching on metal sheet.
 After punching the material cut off from
from metal sheet is known as Blanking.
Source : Adopted from Google

16. A process in which various shaped holes are
made on metal sheet where holes are the desired product.
 In Piercing we punch the metal sheet
and the material remaining after punching
is know as piercing.
 You can also see the difference between
piercing and blanking.
Source : Adopted from Google
Source : Adopted from Google

17. Notching is a metal-cutting process used on
sheet metal, sometimes on angle section or tube. We can
say the cutting at the ends of metal sheet is known as
Notching.
 In Notching we cut the only the ends of
metal sheet which is clarify by fig.1
 This is use for different purposes as the
required product.
Source : Adopted from Google

18. A process in which there are several holes are
made in one stock where all of the holes are called a perforation.
 In figure as you shown there is a die on which
several small pins.
 When stock applied on metal sheet it produce
small holes on metal sheet.
Source : Adopted from Google

19. Slitting is a process of cutting larger width coils
into narrower width coils with repetitive accuracy at a high
speed.
 As we receive large roll of metal sheet
from industry so we slitting it for our
required product.
 As you can see in figure the process of slitting.
Source : Adopted from Google

20. A process in which metal sheet sheared and bent
with one strike of die. A key part of this process is reduction
of material, only a modification in its geometry.
 You can see the difference between Lancing, Trimming and slitting.
Source : Adopted from Google
Source : Adopted from Google

21. ANY QUESTION

22. THANK YOU