Sheet metal forming (штамповка лист

Sheet metal forming (штамповка листового метал¬ла) is widely used when parts of certain shape and size are needed. It includes forging, bending and shearing. One characteristic of sheet metal forming is that the thickness of the sheet changes little in processing. The metal is stretched just beyond its yield point (2 to 4 percent strain) in order to retain the new shape. Bending can be done by pressing between two dies. Shearing is a cutting operation similar to that used for cloth.
Each of these processes may be used alone, but often all three are used on one part. For example, to make the roof of an automobile from a flat sheet, the edges are gripped and the piece pulled in tension over a lower die. Next an upper die is pressed over the top, finishing the forming operation (штамповку) , and finally the edges are sheared off to give the final dimensions.
Forging is the shaping of a piece of metal by pushing with open or closed dies. It is usually done hot in order to reduce the required force and increase the metal's plasticity.
Open-die forging is usually done by hammering a part between two flat faces. It is used to make parts that are too big to be formed in a closed die or in cases where only a few parts are to be made. The earliest forging machines lifted a large hammer that was then dropped on the workpiece, but now air or steam hammers are used, since they allow greater control over the force and the rate of
forming. The part is shaped by moving or turning it between blows.
Closed-die forging is the shaping of hot metal within the walls of two dies that come together to enclose the workpiece on all sides. The process starts with a rod or bar cut to the length needed to fill the die. Since large, complex shapes and large strains are involved, several dies may be used to go from the initial bar to the final shape. With closed dies, parts can be made to close tolerances so that little finish machining is required.
Two closed-die forging operations are given special names. They are upsetting and coining. Coining takes its name from the final stage of forming metal coins, where the desired imprint is formed on a metal disk that is pressed in a closed die. Coining involves small strains and is done cold. Upsetting involves a flow of the metal back upon itself. An example of this process is the pushing of a short length of a rod through a hole, clamping the rod, and then hitting the exposed length with a die to form the head of a nail or bolt.

Результаты (английский) 1:

Sheet metal forming (stamping sheet metal ¬ La) is widely used when certain parts of shape and size are needed. It includes forging, bending and shearing. One characteristic of sheet metal forming is that the thickness of the sheet changes little in processing. The metal is stretched just beyond its yield point (2 to 4 percent strain has been carried out) in order to retain the new shape. Bending can be done by pressing between two dies. Shearing is a cutting operation similar to that used for cloth.Each of these processes may be used alone, but often all three are used on one part. For example, to make the roof of an automobile from a flat sheet, the edges are gripped and the piece pulled in tension over a lower die. Next an upper die is pressed over the top, finishing the forming operation (punching), and finally the edges are sheared off to give the final dimensions.Forging is the shaping of a piece of metal by pushing with open or closed dies. It is usually done hot in order to reduce the required force and increase the metal's plasticity.Open-die forging is usually done by hammering a part between two flat faces. It is used to make parts that are too big to be formed in a closed die or in cases where only a few parts are to be made. The earliest forging machines lifted a large hammer that was then dropped on the workpiece, but now air or steam hammers are used, since they allow greater control over the force and the rate offorming. The part is shaped by moving or turning it between blows.Closed-die forging is the shaping of hot metal within the walls of two dies that come together to enclose the workpiece on all sides. The process starts with a rod or bar cut to the length needed to fill the die. Since large, complex shapes and large strains are involved, several dies may be used to go from the initial bar to the final shape. With closed dies, parts can be made to close tolerances so that little finish machining is required.Two closed-die forging operations are given special names. They are upsetting and coning. Coning takes its name from the final stage of forming metal coins, where the desired imprint is formed on a metal disk that is pressed in a closed die. Coning involves small strains and is done cold. Upsetting involves a flow of the metal back upon itself. An example of this process is the pushing of a short length of a rod through a hole the clamping rod and then hitting the exposed length with a die to form the head of a nail or bolt.

Результаты (английский) 2:

Sheet metal forming (punching sheet metal¬la) is widely used when parts of certain shape and size are needed. It includes forging, bending and shearing. One characteristic of sheet metal forming is that the thickness of the sheet changes little in processing. The metal is stretched just beyond its yield point (of 2 to 4 percent strain) in order to retain the new shape. Bending can be done by pressing between two dies. Is a cutting Shearing operation similar to that used for cloth.
Each of these processes may be used alone, but often all three are used on one part. For example, to make the roof of an automobile from a flat sheet, the edges are gripped and the piece pulled in tension over a lower die. Next an upper die is pressed over the top, finishing the forming operation (stamping), and finally the edges are sheared off to give the final dimensions.
Forging is the shaping of a piece of metal by pushing with open or closed dies. It is usually done It hot in order to reduce the required force and increase the metal's plasticity.
Open-die forging is usually done by hammering a part between two flat faces. It is used to make parts that are too big to be formed in a closed die or in cases where only a few parts are to be made. Forging machines earliest The lifted a large hammer that was then dropped on the workpiece, but now air or steam hammers are used, since they allow greater control over the force and of the rate The
forming. Part is shaped The by moving or turning it between blows.
Closed-die forging is the shaping of hot metal within the walls of two dies that come together to enclose the workpiece on all sides. The process starts with a rod or bar cut to the length needed to fill the die. Since large, complex shapes and large strains are involved, several dies may be used to go from the initial bar to the final shape. Closed dies With, parts can be made ​​to address close e-tolerances so that little finish machining is required.
Two closed-die forging operations are given special names. They are upsetting and coining. Coining takes its name from the final stage of forming metal coins, where the desired imprint is formed on a metal disk that is pressed in a closed die. Coining involves small strains and is done cold. Upsetting involves a flow of the metal back upon itself. An example of this process is the pushing of a short length of a rod through a hole, clamping the rod, and then hitting the exposed length with a die to form the head of a nail or bolt.

Результаты (английский) 3:

sheet metal forming (stamping sheet метал¬ла) is widely used in parts of certain shape and size are needed. it includes forging, bending and shearing. one characteristic of sheet metal forming is that the thickness of the sheet changes little in processing. the metal is stretched just beyond its yield point (2 to 4 percent causes) in order to retain the new shape. Bending can be done by pressing between two dies. Shearing is a cutting operation similar to that used for cloth.each of these processes may be used alone, but often all three are used on one part. for example, to make the roof of an automobile from a flat sheet, the first floor are gripped and the piece support in tension over a lower die. next, an upper die is pressed over the top, finishing the forming operation (pressing), and finally the first floor are sheared off to give the final dimensions.Forging is the shaping of a piece of metal by pushing with open or closed dies. it is usually done properly in order to reduce the required force and increase the metal's plasticity.open the forging is usually done by hammering a part between two flat faces. it is used to make parts that are too big to be formed in a closed die or in cases where only a few parts are to be made. the earliest forging machines lifted a large hammer and was then dropped on the workpiece's, but now air or steam hammers are used, since they allow greater control over the force and the rate offorming. the part is shaped by moving or turning it between blows.with sl - the forging is the shaping of hot metal within the walls of two dies that come together to enclose the workpiece's on all sides. the process starts with a www.addic7ed.com or bar cut to the length needed to fill the die. for large, complex shapes and large strains are involved, and the dies may be used to go from the initial bar to the final shape. with closed dies, parts can be made to close tolerances so that the finish machining is required.two closed - die forging operations are given special names. they are upsetting and coining. Coining takes its name from the final stage of forming metal governments, where the desired imprint is formed on a metal disk that is pressed in a closed die. Coining involves small strains and is done again. Upsetting involves a flow of the metal back upon itself. an example of this process is the proceedings of a short length of a www.addic7ed.com through a hole, the clamping www.addic7ed.com and then hitting the exposed length with a die to form the head of a nail or bolt.