press brake is a machine with twins oli cylinders for bending the stroker to the metal plate

After bending force you take five poitn for meassure the Angle of the bend metal

for example A1 A2 A3 A4 A5

It will happened A1= 90 DEGREE  A2= 91 DEGREE A3= 93 DEGREE A4= 91 DEGREE A5= 90 DEGREE

So as this moment we need a cowning system to balance the angle for one full lenght of metal sheet

for Nc machine we use the crowning tabel by manual

as follow :

for CNC press brake

we use the crowning system with a servo motor and it is controlled by the CNC

As follow

So when you need diss the flection you just put the data in the cnc of pressbrake