Īir bending does not require the bottom tool to have the same radius as the punch. ĭepending on material properties, the sheet may be overbent to compensate for springback. Springback depends on material properties, influencing the resulting bend angle. Angle accuracy is ensured by applying a value to the width of the V opening, ranging from 6 T (six times material thickness) for sheets to 3 mm thick to 12 T for sheets more than 10 mm thick.
![bysoft 7 bending compensation bysoft 7 bending compensation](https://spi.de/wp-content/uploads/2019/05/e-bystronic.png)
Īir bending's angle accuracy is approximately ☐.5 deg. Thus, the use of adequate process models is important.
![bysoft 7 bending compensation bysoft 7 bending compensation](https://i.ytimg.com/vi/l72GaICL45c/hqdefault.jpg)
Variations in the thickness of the material and wear on the tools can result in defects in parts produced.
Bysoft 7 bending compensation full#
Ī disadvantage of air bending is that, because the sheet does not stay in full contact with the dies, it is not as precise as some other methods, and stroke depth must be kept very accurate. There are also fewer tool changes, thus, higher productivity. Different materials and thicknesses can be bent in varying bend angles, adding the advantage of flexibility to air bending. Some of the newer bottom tools are adjustable, so, by using a single set of top and bottom tools and varying press-stroke depth, different profiles and products can be produced. Because it requires less bend force, air bending tends to use smaller tools than other methods. The punch forms the bend so that the distance between the punch and the side wall of the V is greater than the material thickness (T).Įither a V-shaped or square opening may be used in the bottom die (dies are frequently referred to as tools or tooling). This bending method forms material by pressing a punch (also called the upper or top die) into the material, forcing it into a bottom V-die, which is mounted on the press. The other types of bending listed use specially designed tools or machines to perform the work. Note that some locations do not differentiate between the two different kinds of dies (punches and dies).
![bysoft 7 bending compensation bysoft 7 bending compensation](https://i.ytimg.com/vi/C8qCDAirwak/maxresdefault.jpg)
Dies are usually stationary and located under the material on the bed of the machine. A die with a long rail form tool that has concave or V shaped lengthwise channel that locate the outside profile of the form is called a die. Punches are usually attached to the ram of the machine by clamps and move to produce the bending force. A die with a long rail form tool with a radiused tip that locates the inside profile of the bend is called a punch. The configuration of the tools for these three types of bending are nearly identical. These three are Air Bending, Bottoming and Coining. There are three basic types of bending on a press brake, each is defined by the relationship of the end tool position to the thickness of the material.