Hi friends in the another post, we have discussed about
types of dies used for manufacturing. Basically the types of dies depends on
the type of operation in the press machine. So we will discuss the type of
operations in the sheet metal component by press machine.
This is all about this post if you want to ask something, please let me know in the comment section. If you have some additional information about this post then please mention it in the comment.
Type of operations in the press machine
There are many operations which can be performed in the
sheet metal. They are divided in the two categories i.e. 1) cutting operations
2) non cutting operations or Forming Operation.
Cutting operations in press machine
The operations in which sheet metal component is divided
into several parts is called cutting operations. Some important cutting
operations are given below-
1) Blanking Operation
This is one of the cutting process. In which the punch tool
is imposed or pressed in a specimen to cut the material. In blanking the
punched part will be the useful product and the remaining will be the scrap
part.
Blanking Operation |
2) Piercing Operation
This is same process as blanking. In this process the holes
are cut by press machine. But in piercing the punched part will be the scrap and
remaining would be useful product.
piercing operation |
3) Notching Operation
In the notching process the material is removed from the
edges of the specimen. The press is applied and scrap is removed by cutting
action from the edge of the work piece.
Notching Operation |
4) Parting off
In this cutting process material is removed from one
specimen to make two useful products by cutting action.
5) Lancing operation
In this cutting process the material is not removed totally
from the specimen. In a rectangular cut three side cutting operation is done.
The remaining side is used for bending.
6) Cut off
If the cutting action is done along a line, it is simply
referred as cut off.
7) Perforating Operation
In this cutting process, maximum holes are tried to cut in a
single stroke of press. This is a kind of piercing process to cut maximum
holes.
8) Cropping
This is cutting action to control the movement of the strip.
9) Nibbling Operation
In this process the successive holes are created by
punching. The required size of sheet is created through punching. This is done
when the die to cut the sheet is not available or the size of required product
is large. This process can also be done by drilling the holes in the specimen.
10) Louvering
This process in consist of cutting and forming process. In
this one edge is operated with cutting action and three edges are cut by
forming operation.
11) Trimming
This process is to remove the extra unwanted material from a
drawn component.
12) Shaving
This is a finishing operation to be performed on the blanked
or pierced parts.
Also Read:
Press Working Terminology
Types of Dies in Sheet Metal ( Tool Engineering )
Also Read:
Press Working Terminology
Types of Dies in Sheet Metal ( Tool Engineering )
Non Cutting Operation Or Forming Operation In The Press Machine
These operation are generally forming operations. In which
the shape of material is changed by plastic deformation. Some of these
operation is described below
1) Bending
In this operation the sheet metal is pressed to bend at an
angle. The bending tool is designed to fix a certain bending angle for mass
production.
2) Embossing
Embossing is the process of producing a shallow forming of
identical thickness.
3) Drawing
It is process of changing the blanked part into hollow
vessel. This definition is regarding sheet metal because Drawing is also a
forming operation.
4) Coining
Process of making impressions and/or depressions in the
specimen by press machine tool is called coining.
5) Engraving
It is a process to insert a text on the surface of metal
sheet. If someone want to write something on the metal sheet, this process is
used. The tool will press the metal to dig out a text.
6) Bulging
In this the height of a cup shaped component is decreased.
This happens due to the expansion of cup along a narrow band.
7) Seaming
This is the process of forcing the material along to the
periphery of a hollow cylinder.
8) Curling
It is the process to turn the edge inside to a segment.
9) Hemming
It is a process to join the two sheets of metal by interlock
them with each other.
Sheet metal industry is very big in the field of
manufacturing. Most automobile parts are of sheet metal. So every mechanical
geek should know about these operations.
These are the cutting and forming processes performed in press machine shop in press tool. these operation in largely used in Automobile industry.
These are the cutting and forming processes performed in press machine shop in press tool. these operation in largely used in Automobile industry.
This is all about this post if you want to ask something, please let me know in the comment section. If you have some additional information about this post then please mention it in the comment.
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