K 0.08 > K > 0.05 – Tube bending is possible only when using a movable, internal mandrel in conjunction with a wiper die.0.10 > K > 0.08 – A fixed bending mandrel with a wiper die – a special tool to restrict tube deformation – will be needed for bending the tube.0.30 > K > 0.10 – The bending process is of normal difficulty: using only an internal, fixed bending mandrel will be sufficient.K > 0.30 – Bending the tube is more ‘straightforward’ and there is now need to use special support jigs that would need to be manufactured ad hoc.The difficulty of the tube bend is inversely proportional to its value: the difficulty increases with a low K-factor and decreases with a high K-factor. Click here or follow the link below to download the updated Tube Section Modulus Calculator and Tube Bending Formula guide.This formula produces the value for the K-factor. Some of the formulas include:Īs well as both the general bend difficulty rating formula and the bend difficulty rating formula with recommended weighting!īoth of these downloads are free and only require filling out a brief form. This guide provides formulas for some of the most common tube bending calculations. What is in the Tube Bending Formulas Guide? However, this download is also the Tube Bending Formulas guide. The Section Modulus Calculator calculates the section area moment of inertia properties of common shapes like square, round, half rounds, triangles, and others. Section Modulus Calculator and Tube Bending Formulas Guide in One Download
We previously shared the Section Modulus Calculator with our readers, but you may not have realized we also have a guide for some of the most common tube bending formulas. Utilizing the right tube bending formulas can make the difference between a successful bend and a bend with fatal flaws.
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