1. causes a steadily applied pressure instead of impact force
2. is used to force the end of a heated bar into a desired shape
3. is a forging operation in which two halves of a rotating die open and close rapidly while impacting the end of the heated tube or shell
4. is a forging method for reducing the radius and making it longer
is a forging method for reducing the radius and making it longer
1. blanking
2. piercing
3. perforating
4. punching
blanking
1. causes a steadily applied pressure instead of impact force
2. is used to force the end of a heated bar into a desired shape
3. is a forging operation in which two halves of a rotating die open and close rapidly while impacting the end of the heated tube or shell
4. is a forging method for reducing the diameter of a bar and in the process making it longer
is used to force the end of a heated bar into a desired shape
1. guide rolls
2. back up rolls
3. main rolls
4. support rolls
back up rolls
1. fibre like structure
2. grain field like structure
3. carbon precipitated at boundaries
4. carbon in the form of flakes
fibre like structure
1. removal of excess metal from the edge of strip to make it suitable for drawing without wrinking
2. cutting of the excess metal at edge which was required for gripping purpose during press working operation
3. cutting in a single line across a part of the metal strip to allow bending or forming in progressive die operation while the part remains attached to the strip
4. punching in which punch is stopped as soon as the metal fracture is complete and metal is not removed but held in hole
removal of excess metal from the edge of strip to make it suitable for drawing without wrinking
1. removal of excess metal from the edge of strip to make it suitable for drawing without wrinkling
2. cutting of the excess metal at edge which was required for gripping purpose during press working operation
3. cutting in a single line across a part of the metal strip to allow bending or formatting in progressive die operation while the part remains attached to the strip
4. punching in which punch is stopped as soon as the metal fracture is complete and metal is not removed but held in hole
cutting in a single line across a part of the metal strip to allow bending or formatting in progressive die operation while the part remains attached to the strip
1. ductility
2. work hardening
3. plasticity
4. shearing
plasticity
1. in which the edges of sheet are turned over to provide stiffness and a smooth edge
2. of producing controus in sheet metal end of bending previously roll formed sections
3. in which a series of impact blows are transferred on dies so that solid or tubular work changes in cross section or geometric shape
4. employed to expands a tubular or cylindrical
in which the edges of sheet are turned over to provide stiffness and a smooth edge
1. in which the edges of sheet are turned over to provides stiffness and a smooth edge
2. of producing controus in sheet metal end of bending previously roll formed sections.
3. in which a series of impact blows are transferred on dies so that solid or tubular work changes in cross section or geometric shape
4. employed to expand a tubular or cylindrical part
employed to expand a tubular or cylindrical part