What is Sheet Metal?
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| Sheet Metal Process |
A piece of metal whose thickness is between 0.15mm to 6.35mm (depends upon area). Anything thinner is referred to as a foil and thicker is considered as a plate. Sheet thickness is generally measured in gauge. Greater the gauge number, thinner the sheet of metal. Sheet metal can be cut, bent and stretched into nearly any shape. Generally two types of operations are performed - Forming And Cutting.
What is Injection Moulding
Types Of Sheet Metal Dies:-
1). Simple Die
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| Simple Die |
Simple dies or single action dies perform single operation for for each stroke of the press slide. The operation may be cutting or forming operations.
2). Compound Die
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| Compound Die |
In these dies, two or more operations may be performed at one station. Such dies are considered as cutting tools since, only cutting operations are carried out.
3). Combination Die
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| Combination Die |
In this die also, more than one operation may be performed at one station. It is different from compound die, in this die a cutting operation is combined with a bending or drawing operation, due to that it is called combination die.
4). Progressive Die
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| Progressive Die |
A progressive die has a series of operations. At each station, an operation is performed on a work piece during a stroke of the press.
Lathe machine operations
Types Of Sheet Metal Operations:-
1). Blanking
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| Blanking |
A piece of sheet metal is removed from a larger piece of stock. Removed piece is useful in blanking and can't be considered as scrap.
2). Fine Blanking
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| Fine Blanking |
A second force is applied underneath the sheet, directly opposite the punch. This technique produces a part with better flatness and smoother edges.
3). Piercing Or Punching
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| Piercing Or Punching |
The typical punching operation, in which a punch pierces a hole into the sheet.Removed piece is scarp in this operation.
4). Trimming
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| Trimming |
Punching away excess material from the perimeter of a part, such as trimming the flange from a drawn cup.
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5). Slitting
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| Slitting |
Cutting straight lines in the sheet, no scrap is produced.
6). Shearing
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| Shearing |
Shearing is defined as separating material into two parts. Is uses shearing force to cut the sheets.
7). Bending
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| Bending |
Bending is a metal forming process in which a force is applied to a piece of sheet metal, causing it to bend at an angle form the desired shape.
8). Lancing
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| Lancing |
Creating a partial cut in the sheet, so that no material is removed. The material is left attached to be bent and form a shape, such as tab, vent or louver.
Heat Treatment Process
9). Notching
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| Notching |
Punching the edge of a sheet, forming a notch in the shape of a portion of the punch.
10). Embossing
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| Embossing |
Certain designs are embossed on the sheet metal, punch and dies are of the same contour but in the opposite direction.
11). Shaving
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| Shaving |
Shearing away minimal material from the edge of a feature or part, using a small die clearance. Used to improve accuracy or finish.
12). Coining
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| Coining |
Similar to embossing with difference that similar or different impressions are obtained on both the sides of the sheet metal.
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