Cold working processes

Cold working processes:

Below the recrystallization temperature if the mechanical work is done on the metals , there will no grain growth but it must be grain this integration elongation , the process is known is cold working processes. In cold working process greator pressure is required than that required in hot working. As the metal is in a more rigid state. It is not permanently deform until stress exceeds the elastic limit. Most of the cold processes are performed at room temperature , the different cold working processes are

1: Drawing

·        Wire drawing

·        Tube drawing

·        Blanking

·        Spinning

2:  Sequeezing

·        Coining

·        Sizing

·        Riveting

 3:   Bending

·        Angle bending

·        Plate bending

·        Roll forming

 4:  Shearing

      Punching                Blanking

      Trimming         Perforating

       Notching          Launcing

        Slittig

5:Extruding

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