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Applications where 3D bend are used?
3D Short Radius Bend and long radius bends are used in different applications such as wiring conduits, pipelines, plumbing, handrails, art projects, fencing, automotive exhaust systems, structural frames, and furniture design. The diameter of the bends varies according to the application. The 3D Pipeline Bends can be of smaller diameters below 10 inches or larger diameters above 10 inches. Since these are long radius bends, they can be used in applications where a smooth flow of fluids is needed.
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How do you calculate 90 degree 3D bend radius?
The bend has bend allowance, bend deduction, and K factor in the calculations. Most 90 Degree 3D Bend types have equal legs or equal lengths of pipe on both sides of the curvature. Then the circumference of the pipe bend is measured from end to end of the bending part. The radius of a 90 Deg 3D Bend is denoted by R = C/2(pi) where the C is the circumference of the bend and the pi is a constant, 3.14.
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How are stainless steel 3D pipe bends formed?
Carbon Steel 3D Pipe Bending processes are facilitated by machines. The machines are mostly operated by manpower. However, there are machines that run with pneumatic power or hydraulic power. The bends can be formed by press bending, hot-slab sand packing forming, three-roll push bending, rotary draw bending, or heat induction bending. Stainless Steel 3D Pipe Bends can be made by either of these methods. The heat induction method uses an induction coil that heats up a piece of pipe and then pressure is applied to bend the pipe to the desired curvature. After the desired shape is achieved, the newly formed bend is then passed through water or cold air for stabilization.
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What is the weight calculation formula for ASME B16.9 long radius 3D bend?
The weight of any piping product involves the volume of the material and density of the material. So the 3D Short Radius Bend or any other bend can be measured for the thickness and total surface. The thickness multiplied by the total surface provides the volume of the material. The piping material has a specific density. Multiplying the volume by the density will give you the weight. The formula is w = 0.0433 ( D – T ) TRθ / 100000 + L where w is the weight in kg, D is the outer diameter of the pipe, T is the thickness in mm, R is the bend radius, θ is the bend angle and L is the sum of double sides straight length.
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What is a 3D pipe bending machine – manufacturing?
As discussed earlier, pipe bending is facilitated by machines. A pipe bending machine takes in the raw pipe and makes it into a bend. This is done by pressure, heat, and pulling or pushing of particular parts. Carbon Steel 3D Pipe Bending of smaller diameter pipes could be done with just rotary draw with mandrels placed inside the pipe. The pipe end is bent while the mandrel inside maintains the internal diameter of the pipe. Larger pipe sizes are bent through machines with heating and pressing mechanisms.