The brake consists of a flat surface onto which the material is placed, and a clamping bar which will come down and hold the material firmly during the bend. This clamping action may be manual, automatic or operated using a foot pedal. The front, gate-like, plate of the machine is hinged and may be lifted, forcing the material extended over a straight edge to bend to follow the plate. The bends can be to any angle up to a practical limit of about 120 degrees, somewhat more in the case of a bar folder. If the area to be bent is narrow enough, a sharper bend (e.g., for a hem) can be made by inserting the bend under the clamping bar and lowering it.
The bending of sheet metal refers to the processing of changing the angles of plates or sheets. Such as bending the sheet into V shape, U shape and so on. Generally speaking, sheet metal bending has two methods: one is die bending, which is used for sheet metal structures with complex structure, small volume and mass processing; the other is bending by bending machine, which is used to process sheet metal structures with large structure size or with small output. These two bending methods have their own principles, characteristics and applicability.
CNC bending machine and ordinary bending machine are made of stainless steel, ordinary steel plate and other plates. The difference lies in whether there is computer control and automatic feedback. The different results are: processing speed, machining accuracy and processing efficiency.
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