Sheet metal stampings include a range of many manufacturing processes. These include punching by use of a machine press, coining, bending, embossing and blanking among others. Stamping can be a single stage process where only one stroke is required to make the desired form or it could be a number of stages. Stamping is usually performed on metals but it can also be done on other materials such as polystyrene.
One method of stamping is by bending. This method is used to make channel shapes, V shapes and U shapes on metals along an axis that is straight. Brake presses, box and pan brakes as well as other machine presses are used to carry out this process. Some of the products made by this method are boxes.
Another method of stamping is known as piercing and blanking. A punch and die are used in these two shearing processes to modify webs. In blanking a useful blank is punched out while in piercing the material punched out is scrap.
Coining is a precision operation of stamping. A work piece is subjected to high stress to make plastic flow on the surface. In metals plastic flow work hardens the surface and reduces the surfaces grain size. The material inside retains its ductility and toughness. Coining is used when the requirement is very fine features.
Embossing is yet another technique of stamping in which a metal that is malleable is hammered to shape from the reverse side. It creates a design in low relief. This technique is diverse and very economical. A reverse process is known as chasing is used to finish the Embossing process.
Other operations used in sheet metal stampings are drawing, progressive stamping and forming. Stamping simulation is used to calculate the process of stamping. This technology detects defects such as wrinkles, splits and material thinning. The technology applies non linear finite element analysis and it has many advantages in the manufacturing industry. This is because it saves time and reduces cost.
One method of stamping is by bending. This method is used to make channel shapes, V shapes and U shapes on metals along an axis that is straight. Brake presses, box and pan brakes as well as other machine presses are used to carry out this process. Some of the products made by this method are boxes.
Another method of stamping is known as piercing and blanking. A punch and die are used in these two shearing processes to modify webs. In blanking a useful blank is punched out while in piercing the material punched out is scrap.
Coining is a precision operation of stamping. A work piece is subjected to high stress to make plastic flow on the surface. In metals plastic flow work hardens the surface and reduces the surfaces grain size. The material inside retains its ductility and toughness. Coining is used when the requirement is very fine features.
Embossing is yet another technique of stamping in which a metal that is malleable is hammered to shape from the reverse side. It creates a design in low relief. This technique is diverse and very economical. A reverse process is known as chasing is used to finish the Embossing process.
Other operations used in sheet metal stampings are drawing, progressive stamping and forming. Stamping simulation is used to calculate the process of stamping. This technology detects defects such as wrinkles, splits and material thinning. The technology applies non linear finite element analysis and it has many advantages in the manufacturing industry. This is because it saves time and reduces cost.
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