CNC Shengzhong Standard Package Automatic Hydraulic Press Brake Machine with CE

Bend Deduction and K-Factor are material-dependent. The most accurate method is practical testing: make a few test bends with the same tools and material, measure the final dimensions, and back-calculate the accurate value. Many modern press brake controllers have built-in material libraries that provide estimates as a starting point.

Tooling selection depends on material type, thickness, desired bend angle, and inside radius (R). A general rule of thumb is: the die V-opening width is typically 6 to 12 times the material thickness (T). Thicker materials or larger radii require wider V-openings.

Potential causes include material variation in hardness, tooling wear or misalignment, inconsistent bending speed affecting springback, or issues with the Deflection Compensation system setup.

This is caused by the elastic deflection of the ram and bed under load. You need to activate or adjust the machine's deflection compensation system. For older machines without compensation, manual compensation can be achieved by crowning the bed or using a crowned die.

Springback can be controlled by overbending (programming a smaller angle), using a sharper punch, increasing pressure via coining mode, or using a smaller V-die to increase stretching.