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L'usinageMachining
Visit pliageSteelbending
Principle
Bending is the most widely used technique for forming flat products (sheet metal). The part (called a blank) rests on supports, or is recessed at one end, and is subjected to the action of a force. The part is bent.
Depending on the metal's elasticity, a springback occurs. Indeed, when the stress ceases, the blank does not retain its initial shape, but the angle opens...
Visit coudageSteelbending
Principle and layout
This name is reserved for the shaping of flat and solid profiles. The bending technique is comparable to that of the universal bending machine, except that it is reserved for laminates with large cross-sections, as the machines, and above all the tooling, are designed to withstand high local forces (cf. ).
The example shows the various operations...
Visit cintrageSteelcintage
Shaping hollow profiles
The problems associated with this type of shaping are more complex than you might imagine. It is only after a few simple explanations that we can easily understand the difficulties involved in obtaining parts with the desired dimensions and angles (cf. ).
To better understand what happens during bending, let's take two comparisons from...
Visit roulageSteelrolling
Principle
This type of machine is generally reserved for sheet metal and simple-shaped parts. The resulting parts are generally cylindrical and called shells. If certain precautions are taken, truncated-cone-shaped parts can also be produced. Some machines have high capacities for rolling thick parts (cf. ).
The principle generally consists of placing the workpiece...
The Ultimate Scientific and Technical Reference
