1. After bending, the edge radius of the workpiece is small, and there is no refraction.
It can be known from the bending process that the arc radius of the edge of the workpiece after bending is in direct proportion to the thickness of the workpiece to be bent. After grooving, the thickness of the remaining sheet is only half of the original sheet thickness, or even smaller, so that the edge arc radius of the workpiece after bending is also proportionally reduced. And because the thickness of the remaining sheet after V-grooving is small, the deformation force during bending is also small, and it will not spread to affect the unbent area, so there is no refraction on the surface of the sheet metal workpiece after bending. This satisfies the special requirements of high-end decoration in hotels, restaurants, restaurants, commercial buildings, banks, airports and other places.
2. Reduce the bending force required for sheet metal bending.
It can be known from the bending process that the sheet metal bending force and the sheet thickness of the workpiece to be bent are also in a direct proportional relationship. The thin metal sheet is V-shaped before bending. After the slot, the thickness of the remaining sheet is about half of the original sheet thickness, or less, so that the bending force required for bending the sheet is also reduced accordingly, so that the long sheet can be used on a smaller tonnage bending machine It can also be bent. It can not only reduce equipment investment, but also save energy.
3. Some special material types can be bent into rectangular tubes with common molds on ordinary bending machines.
This type of material shape cannot be bent into shapes on ordinary bending machines, or special designed complex molds are required to complete the work. However, by controlling the depth of the V-grooving of the thin metal sheet, this special bending material type can also be bent and formed on an ordinary bending machine with a general mold. The specific method is: control the remaining sheet thickness of the V-groove in the last bending process to about 0.3 mm, so that the rebound angle of this bending process is small, and the rectangular tube will not rebound and deform after being formed.
4. Positioning the length of the bent side before bending.
Through the shallow V-shaped grooving of the thin metal sheet, it can be used to pre-position the length of the bent side before bending, and then use the pre-marked V on the bending machine. The profiled wire groove is bent, which can ensure the accuracy of the length of the bending edge, and can replace the back gauge function of the CNC bending machine. Of course, the premise is that the positioning accuracy of the V-shaped sheet metal router must reach ±0.05 mm.
5. Equipment for V-shaped grooving of thin metal sheets Before there is a dedicated V-shaped pitting equipment,
a gantry v groover machine is generally used for V-shaped pitting of thin metal sheets, because the gantry v groover machine does not have a reliable and effective metal sheet pressing device , It is impossible to accurately control the depth of the V-shaped groove of the metal sheet and the positioning distance of the V-shaped groove. In addition, the energy consumption of the gantry v groover machine is large and the efficiency is low. Currently, the V-shaped grooving work is carried out on the metal sheet. It has been replaced by a sheet metal groover. The new metal sheet pit v groover machine is designed and manufactured according to the special needs of the medium and high-end decoration industry, elevator manufacturing and other industries. It can perform V-shaped grooving on stainless steel sheet, iron plate, copper plate and other materials. The new type of sheet metal planing machine, if equipped with some special special accessories, can also perform work such as grinding, polishing, and wire drawing on sheet metal and profiles.