Bend deduction and Flat length vs Darcy Weisbach Equations Calc Usage & Stats
One of the most common problems in bending is the calculation of bend deduction. Determining the size of the piece to be cut starting from the finished measurements is often done by trial and error, requiring a lot of additional work not only for the press brake operator but also for the designer and the laser cutter operator. Time and material are wasted on various tests before getting a reliable value.
With this app, you quickly get the sheet metal bend deduction, and therefore the sheet metal blank initial flat length, from the finished part measurements.
You only have to insert interior angle, flange lengths, K factor, inside radius, and material thickness.
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Darcy-Weisbach Equations Calculator is a physics/math calculator designed to find fluid head loss, friction factor, pipe length, pipe diameter, or fluid flow velocity quickly and easily.
Features:
- Instant calculation
- Results are copyable to other apps
- Formulas are included as a reference
- Support up to 16 decimal places
- Support various units for each input
Darcy-Weisbach Equations for Hydraulics Fluid Mechanics
In fluid dynamics, the Darcy–Weisbach equation is an empirical equation that relates the head loss or pressure loss due to friction along a given length of pipe to the average velocity of the fluid flow for an incompressible fluid. The equation is named after Henry Darcy and Julius Weisbach.
Darcy-Weisbach equations are used to calculate the major pressure or head loss due to friction in pipes, ducts, or tubes.
Formula:
h = fLv²/2Dg
Where:
h - is the head loss
f - is the friction factor
L - is the pipe length
D - is the pipe diameter
v - is the flow velocity
g - is the acceleration of gravity
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Bend deduction and Flat length VS. 
Darcy Weisbach Equations CalcJanuary 12, 2025