How much force is needed to flatten the pipe

1. It has something to do with the pipe diameter, wall thickness, material quality, state and clearance after flattening
there is no "flattening force" formula for all pipes required by the owner

2. It's troublesome to calculate. If you can't press it directly, you can get a bigger hydraulic press to press it.
try it out after a few times.
don't play too much with books

3.

The tensile and compressive yield strength of steel materials has a certain range. For example, the yield strength of 20 # steel is about 235 MPa, and the tensile strength is more than 400 MPa. Assuming that the wall of steel pipe is very thin, the maximum pressure of uniform compression on the outside is the same as that on the inside. However, please note that the thin-walled steel tube is prone to buckling under compression. At this time, it may be calculated according to the buckling strength, so your problem assumes that the tube is not too thin. We can think of the pipe as flat, so that we can calculate the flattening pressure of the pipe according to the internal pressure of the pipe

The bearing pressure of the pipe can be calculated by filling in the corresponding steel pipe size and material strength at the place where the arrow is marked in the

figure

after the pressure is calculated, the pressure can be calculated by adding x to the stress area of the pipe. The calculated pressure is that the pipe will not be pressed through

4. It has something to do with pipe diameter, wall thickness, material, state and clearance after flattening

5. Flattening a copper tube is half its circumference

6. If both ends of your pipe are connected with water, no matter how deep you put it into the water, it will never be flattened, because the internal and external pressure is the same
if you seal both ends of the pipe, you can roughly measure the pressure on your pipe, but you also need some skills
maybe you need to consider sealing the pipe into many sections and then putting it into the water, In this way, you can see where the junction between flattened and unrolled is, and the pressure at that depth is about the pressure that your pipe can bear.
as for the pressure value, it is easy to use the formula P of the first floor= ρ You can figure it out

7. I've done this before. The drawings and requirements are more detailed. Let me have a look.

8. To calculate the torque according to the yield strength of the pipe is also related to the pipe diameter, wall thickness and bending radius r!

9. Stranded fish: Hello< Discussion:
theoretically, the length after flattening is half of the circumference, 14mm × three point one four ÷ 2 = 21.98mm
but the tube always has thickness,
if the inner diameter is 4mm, then only 4mm Diameter is flattened, and the rest is not flattened, so the length should be:
(14mm-4mm) + 4mm × three point one four ÷ 2 = 10 mm + 6.28 mm = 16.28 mm
if the inner diameter is 10 mm, then a diameter of 10 mm is flattened, and the length after flattening is:
(14 mm-10 mm) + 10 mm × three point one four ÷ 2 = 4mm + 15.7mm = 19.7mm
of course, it depends on the hardness, ctility and other physical properties of the pipe, and some pipes are difficult to flatten
this is just my personal opinion. Are you right? Good luck and goodbye.

10. It has something to do with the pipe diameter, wall thickness, material quality, state and clearance after flattening

there is no "flattening force" formula for all pipes required by the owner