Presentation On Press Tool Design 01
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TOPICS • PRESS TOOLS & TYPES • PRESS OPERATIONS • TYPES OF PRESSES • STRIP LAYOUT
• STRIP MATERIALS PRESENTED BY SUPEKAR RAVINDRA S.
Tool Design
Press Tool :-
Press tools are special tools custom
built to produce a particular component mainly out of sheet metal. Ex. – Automobile parts, Sheet metal parts of electrical equipments, etc.
Tool Design
Types of Press Tools :
Simple Tool Compound Tool Combination Tool Bending Tool Drawing Tool Progressive Tool
Tool Design
Simple Tool :-
This tool is designed to perform piercing and blanking operation.
Punch Work Piece Die scrap
Tool Design
Compound Tool :-
Blanking and Piercing operation performed in a single stroke. Piercing punch Required Work Blanking Punch
Tool Design
Combination Tool :-
The cutting and forming operation are combined and carried out in single stroke. Forming part
Blank
Combination of blank and form die
Tool Design
Bending Tool :-
This Tool is used to bend the component in specified shape. V-Bend Tool U-Bend Tool Punch
Work piece Die
Tool Design
Drawing Tool :-
Drawing is a process of axial elongation through application of axial force.
Punch Die Work piece
Tool Design
Progressive Tool :-
The work piece moves from one station to another, with separate operations, being performed at each station.
Punch Strip Die
Tool Design
Types of press operations There are two types of operations
Cutting operations
Non-Cutting operations
Tool Design
Types of cutting operations Piercing Blanking Notching Lancing Parting off cutoff
Cropping Perforating Nibbling Louvering Trimming Shaving
Tool Design
Piercing :-
Holes are cut on the sheet metal.
Tool Design
Blanking:-
The Cutting action must be about a complete or enclosed contour.
Notching :-
Tool Design
It is an operation for removing a piece of scrap from the edge.
Lancing:-
Tool Deign
Three side cutting and one side bending operation.
Tool Design
Parting Off :-
Cut the material between two components to separate it from parent metal.
Tool Design
Cut Off :-
The cutting action must be along a line.
Cropping :-
Cutting operation to control the strip movement.
Tool Design
Tool Design
Perforating :-
Maximum number of holes are pierced in single stroke.
Tool Design
Nibbling :-
To cut out the sheet to size with help of punching.
Tool Design
Louvering:-
Three side forming and one side cutting operation.
Tool Design
Trimming:-
To cut excess material which is left out on the flange of the drawn component.
Tool Design
Shaving:-
To give finish cut to the blanks and pierced holes.
Tool Design
Types of Non-cutting Operation Bending
Hemming
Drawing
Seaming
Embossing
Curling
Coining
Bulging
Tool Design
Bending:-
To bend the sheet at specified angle.
Tool Design
Drawing:-
It is process of changing flat, precut metal blank into hollow vessel.
Tool Design
Embossing :-
Shallow forming operation at equal thickness.
Tool Design
Coining :-
It is operation of making impression and depression on sheet metal.
Tool Design
Bulging:-
It expands the cups along a narrow band and at the same time reduce the height.
Tool Design
Hemming :-
To join the two sheets.
Tool Design
Seaming :-
It is the operation of pushing the material inside/outside all around the periphery.
Tool Design
Curling :-
It is the operation of turn the edge inside.
Types Of Presses According to Shape 1) C-Frame 2) H-Frame
According to Table Deposition 1) Inclinable 2) Non-Inclinable
According to Stroke 1) Fixed Stroke 2) Variable Stroke
Tool Design
Tool Design
Types of Presses According to Number of Slides 1) Single Action 2) Double Action 3) Triple Action
According to Type of Drive 1) Geared 2) Non-Geared
3) Knuckle Joint 4) Friction Screw
According to Actuation 1) Mechanical
2) Hydraulic
Types of Presses According to Type of operation Trimming, Drawing, Bending, Embossing etc
According to Shape 1) C-Frame
Tool Design
According to Shape 2) H- Frame
Tool Design
Tool Design
According to Number of Slides 1) Single Action
Tool Design
According to Number of Slides 2) Double Action BLANK HOLDER CAM
BLANK HOLDER WORK PIECE DRAWING RAM
PRESS TABLE
Tool Design
According to Number of Slides 2) Triple Action BLANK HOLDER CAM
BLANK HOLDER WORK PIECE DRAWING RAM
PRESS TABLE
BOTTOM RAM
Tool Design
According to Type of Drive 1) Cranked Type
According to Type of Drive 2) Knuckle Type
Tool Design
According to Type of Drive 3) Screw Type
Tool Design
According to Method of Actuation Hydraulic
Tool Design
Tool Design
Strip Layout LENGTH ( L ) MARGIN ( m )
WIDTH (w )
BRIDGE ( b ) b = T to 1.25 T
PITCH ( p ) m = 1.25 T to 1.5 T
L=PxN where , N = No. of Components
T = Thickness
Tool Design
Strip Layout Calculation ECONOMY FACTOR Area of blank x No. of rows Economy Factor =
(%)
x 100 Width of Strip x Pitch
Types Of Strip Layout
Single row one pass Single row two pass Gang strip layout
Tool Design
Single row one pass
Wide Run
Narrow Run
Tool Design
Single row two pass
Tool Design
Gang strip layout
Strip Materials There are two types of materials used Non-Ferrous Materials Ferrous Materials
Non-Ferrous Materials Sr No
Description
Temper / Hardness 0
1
Aluminium 99.8%
½ Hard Full hard
2
3
% 23 8 5
Tensile 88 110 120
Shear 60 70 80
Aluminium –
0
13
260
180
Mg 4.5%, Mn1%, Cu 0.1%
¼H
8
300
200
0
30
420
280
½H
20
540
360
H
10 40 15 3
660 28 38 45
440 19 25 30
Aluminium Bronze Cu 95%, Al 5%
4
Elongation UltimateStrength(N/mm²)
Common Brass Cu63%, Zn 37%
0 ½H H
Non-Ferrous Materials Sr No
5
Description Cartriage Brass Cu70%, Zn 30%
6
Temper / Hardness 0
½ Hard H
Elongation UltimateStrength(N/mm²) % 45 20 5
Tensile 280 360 460
Shear 190 240 280
Magnesium 0
--
190
0
35
220
150
½H
10
250
160
H
-40 10 5
300 270 330 410
170 180 220 280
130
99% 7
8
Copper 100%
Cupro-Nickel Cu80%, Ni 20%
0 ½H H
Ferrous Materials Sr No
1
Description Mild Steel
Temper / Elongation UltimateStrength(N/mm²) Yield Tensile Shear N/mm² Hardness % 0
22
520
400
280
0
27
340
270
210
0
18
480
380
310
0
--
650
510
--
(C25Mn75) 2
Low Carbon Steel
C 0.07% (EDD) 3
0.4% Carbon
Steel Spring Steel 4
0.8% C
Thank You
• STRIP MATERIALS PRESENTED BY SUPEKAR RAVINDRA S.
Tool Design
Press Tool :-
Press tools are special tools custom
built to produce a particular component mainly out of sheet metal. Ex. – Automobile parts, Sheet metal parts of electrical equipments, etc.
Tool Design
Types of Press Tools :
Simple Tool Compound Tool Combination Tool Bending Tool Drawing Tool Progressive Tool
Tool Design
Simple Tool :-
This tool is designed to perform piercing and blanking operation.
Punch Work Piece Die scrap
Tool Design
Compound Tool :-
Blanking and Piercing operation performed in a single stroke. Piercing punch Required Work Blanking Punch
Tool Design
Combination Tool :-
The cutting and forming operation are combined and carried out in single stroke. Forming part
Blank
Combination of blank and form die
Tool Design
Bending Tool :-
This Tool is used to bend the component in specified shape. V-Bend Tool U-Bend Tool Punch
Work piece Die
Tool Design
Drawing Tool :-
Drawing is a process of axial elongation through application of axial force.
Punch Die Work piece
Tool Design
Progressive Tool :-
The work piece moves from one station to another, with separate operations, being performed at each station.
Punch Strip Die
Tool Design
Types of press operations There are two types of operations
Cutting operations
Non-Cutting operations
Tool Design
Types of cutting operations Piercing Blanking Notching Lancing Parting off cutoff
Cropping Perforating Nibbling Louvering Trimming Shaving
Tool Design
Piercing :-
Holes are cut on the sheet metal.
Tool Design
Blanking:-
The Cutting action must be about a complete or enclosed contour.
Notching :-
Tool Design
It is an operation for removing a piece of scrap from the edge.
Lancing:-
Tool Deign
Three side cutting and one side bending operation.
Tool Design
Parting Off :-
Cut the material between two components to separate it from parent metal.
Tool Design
Cut Off :-
The cutting action must be along a line.
Cropping :-
Cutting operation to control the strip movement.
Tool Design
Tool Design
Perforating :-
Maximum number of holes are pierced in single stroke.
Tool Design
Nibbling :-
To cut out the sheet to size with help of punching.
Tool Design
Louvering:-
Three side forming and one side cutting operation.
Tool Design
Trimming:-
To cut excess material which is left out on the flange of the drawn component.
Tool Design
Shaving:-
To give finish cut to the blanks and pierced holes.
Tool Design
Types of Non-cutting Operation Bending
Hemming
Drawing
Seaming
Embossing
Curling
Coining
Bulging
Tool Design
Bending:-
To bend the sheet at specified angle.
Tool Design
Drawing:-
It is process of changing flat, precut metal blank into hollow vessel.
Tool Design
Embossing :-
Shallow forming operation at equal thickness.
Tool Design
Coining :-
It is operation of making impression and depression on sheet metal.
Tool Design
Bulging:-
It expands the cups along a narrow band and at the same time reduce the height.
Tool Design
Hemming :-
To join the two sheets.
Tool Design
Seaming :-
It is the operation of pushing the material inside/outside all around the periphery.
Tool Design
Curling :-
It is the operation of turn the edge inside.
Types Of Presses According to Shape 1) C-Frame 2) H-Frame
According to Table Deposition 1) Inclinable 2) Non-Inclinable
According to Stroke 1) Fixed Stroke 2) Variable Stroke
Tool Design
Tool Design
Types of Presses According to Number of Slides 1) Single Action 2) Double Action 3) Triple Action
According to Type of Drive 1) Geared 2) Non-Geared
3) Knuckle Joint 4) Friction Screw
According to Actuation 1) Mechanical
2) Hydraulic
Types of Presses According to Type of operation Trimming, Drawing, Bending, Embossing etc
According to Shape 1) C-Frame
Tool Design
According to Shape 2) H- Frame
Tool Design
Tool Design
According to Number of Slides 1) Single Action
Tool Design
According to Number of Slides 2) Double Action BLANK HOLDER CAM
BLANK HOLDER WORK PIECE DRAWING RAM
PRESS TABLE
Tool Design
According to Number of Slides 2) Triple Action BLANK HOLDER CAM
BLANK HOLDER WORK PIECE DRAWING RAM
PRESS TABLE
BOTTOM RAM
Tool Design
According to Type of Drive 1) Cranked Type
According to Type of Drive 2) Knuckle Type
Tool Design
According to Type of Drive 3) Screw Type
Tool Design
According to Method of Actuation Hydraulic
Tool Design
Tool Design
Strip Layout LENGTH ( L ) MARGIN ( m )
WIDTH (w )
BRIDGE ( b ) b = T to 1.25 T
PITCH ( p ) m = 1.25 T to 1.5 T
L=PxN where , N = No. of Components
T = Thickness
Tool Design
Strip Layout Calculation ECONOMY FACTOR Area of blank x No. of rows Economy Factor =
(%)
x 100 Width of Strip x Pitch
Types Of Strip Layout
Single row one pass Single row two pass Gang strip layout
Tool Design
Single row one pass
Wide Run
Narrow Run
Tool Design
Single row two pass
Tool Design
Gang strip layout
Strip Materials There are two types of materials used Non-Ferrous Materials Ferrous Materials
Non-Ferrous Materials Sr No
Description
Temper / Hardness 0
1
Aluminium 99.8%
½ Hard Full hard
2
3
% 23 8 5
Tensile 88 110 120
Shear 60 70 80
Aluminium –
0
13
260
180
Mg 4.5%, Mn1%, Cu 0.1%
¼H
8
300
200
0
30
420
280
½H
20
540
360
H
10 40 15 3
660 28 38 45
440 19 25 30
Aluminium Bronze Cu 95%, Al 5%
4
Elongation UltimateStrength(N/mm²)
Common Brass Cu63%, Zn 37%
0 ½H H
Non-Ferrous Materials Sr No
5
Description Cartriage Brass Cu70%, Zn 30%
6
Temper / Hardness 0
½ Hard H
Elongation UltimateStrength(N/mm²) % 45 20 5
Tensile 280 360 460
Shear 190 240 280
Magnesium 0
--
190
0
35
220
150
½H
10
250
160
H
-40 10 5
300 270 330 410
170 180 220 280
130
99% 7
8
Copper 100%
Cupro-Nickel Cu80%, Ni 20%
0 ½H H
Ferrous Materials Sr No
1
Description Mild Steel
Temper / Elongation UltimateStrength(N/mm²) Yield Tensile Shear N/mm² Hardness % 0
22
520
400
280
0
27
340
270
210
0
18
480
380
310
0
--
650
510
--
(C25Mn75) 2
Low Carbon Steel
C 0.07% (EDD) 3
0.4% Carbon
Steel Spring Steel 4
0.8% C
Thank You
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