To a lot of people, the art of bending tubes is a mysterious, dark one indeed. There is a whole lot of trial and error involved in the whole process. Mistakes are bound to happen, without fail, unless it has been going on for years for the same shape and you are able to do it with your eyes closed. Over time, the art has evolved into something that can feature modern technology when necessary. The basic principles of the bending of tubes remains the same, though, and they probably always will. While technology may advance every single day and work wonders in easing the processes we used to find so hard, it doesn’t change the fact that physics are physics and they will not change. Tubes, pipes and just about anything else are subject to the same laws.
The Four Factors of Bending
There are four major factors that affect the effectiveness of a hydraulic pipe and tubing bender no matter what methods you use. The perfect bend requires the right material, the right machine, getting tooling done properly, and adequate lubrication of all surfaces. When starting a bend, you need to figure out what the material of your tube is. If you are going to be bending a water or air pipe, you can get the material from the pipe size. To find the right machine for this type of pipe, you are going to need to consider other variables too, such as the radius, wall thickness, outer diameter and more. If you can find the specifications for your pipe (they are all made to a standard for each size), you should be able to see the tolerance of the values as well. Tooling comes into play here, with the right tools allowing for small variations in the variables of the pipe.
Watch Out For Cave-Ins
A common problem experienced when using a hydraulic pipe and tubing bender is the natural stretching of the outer wall of the pipe. This means that the outside of the curve is going to undergo elongation and a thinning of the wall, while the inside is going to see compression and the thickening of the wall in that area.
Depending on the material, there is going to be a resistance to this compression and elongation, which can cause the thinner wall on the outside to bend inwards a little. This leads to the cross section in that area being oval shaped instead of naturally round. Make sure that your task is lenient when it comes to this sort of shape, unless you want to have to do it all over again. Click this link http://pirtekasia.com/services/flushing-to-nas-standards/ for more information about flushing hydraulic system.