Press Tool

What is a 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.

What are the Types of Press Tools ?

•  Simple Tool - This tool is designed to perform piercing and blanking operation
• Compound Tool - Blanking and Piercing operation performed in a single stroke
• Combination Tool - The cutting and forming operation are combined and carried out in single stroke.
• Bending Tool - This Tool is used to bend the component in specified shape.
  
  V-Bend Tool
  U-Bend Tool
• Drawing Tool - Drawing is a process of axial  elongation through application of axial force.
• Progressive Tool - The work piece moves from one station to another, with separate operations, being performed at each station.

What are the Types of Press Operations ?
There are two types of operations

•  Cutting operations
•  Non-Cutting operations 

 What are the Types of cutting operations ?

•  Piercing - Holes are cut on the sheet metal.
•  Blanking- The Cutting action must be about a complete or enclosed contour
•  Notching - It is an operation for removing a piece of scrap from the edge.
•  Lancing - Three side cutting and one side bending operation
•  Parting off - Cut the material between two components to separate it from parent metal.
•  Cutoff - The cutting action must be along a line
•  Cropping - Cutting operation to control the strip movement
•  Perforating - Maximum number of holes are pierced in single stroke.
•  Nibbling - To cut out the sheet to size with help of punching
•  Louvering - Three side forming and one side cutting operation.
•  Trimming - To cut excess material which is left out on the flange of the drawn component.
•  Shaving - To give finish cut to the blanks and pierced holes.

 What are the Types of Non-cutting Operation ?

•  Bending - To bend the sheet at specified angle.
•  Drawing - It is process of changing flat, pre cut metal blank into hollow vessel.
•  Embossing - Shallow forming operation at equal thickness.
•  Coining - It is operation of making impression and depression on sheet metal.
•  Hemming - To join the two sheets.
•  Seaming - It is the operation of pushing the material inside/outside all around the periphery.
•  Curling - It is the operation of turn the edge inside.
•  Bulging - It expands the cups along a narrow band and at the same time reduce the height.

What are the 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  
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 
According to Type of operation
      Trimming, Drawing, Bending, Embossing etc

What are the types Of Strip Layout?

• Single row one pass
• Single row two pass
• Gang strip layout

What are the types of strip materials used?

• Non-Ferrous Materials
• Ferrous Materials