In the previous post, we discussed the first 4 steps involved in the pipe bending process. In this installment, we will be discussing the final 4 steps of the process. Read on to know more.
Step-by-Step Working of a Pipe Bender
We are almost there, with only a few steps remaining in bending the pipe effectively. Here are the final steps, which will take you towards the end of the process of pipe bending.
- Step 6: Checking the Pipe Alignment
Remember the markings that you did in the step #3? These markings have their significance in this step. Use these markings to adjust the pipe in such a way that the leading edge of the die and these markings are in a line. You can use the holes of the drive pins to look at the pipe to know the exact position of the pipe and the markings. Also, check the pivot arms. Generally, these arms are loose, and you need to pull them, in order to create a little tension in them.
- Step 7: Degree Pointer Adjustment
The degree pointer is used to measure the angle at which the pipe is bent. Thus, to start with, the pointer should be placed on the zero degrees position. The pointer is placed on the edge of the lug. It is then anchored to the lug using a thumbscrew attached to it. Once you are able to achieve this arrangement, tighten the tensioner bolt, which is generally placed near the die. Now, the first notch of the drive rack should be engaged with the sleeve present on the pivot arm.
- Step 8: The Bending Process
Till now, all the steps are about the adjustments required to make for an effective bending of the pipe. This is the step in which the actual bending begins. For bending the pipe, pull the handles of the machine. This will cause the die to rotate, and the pivot arms to open. The pipe will start to bend gradually, and the degree pointer will denote the degree of curvature of the pipe. Now, starting with the first notch, go one engaging each notch, and pull the handle every time. Do this until you reach the last notch of the drive rack. Pull the pivot arms to create a little tension. Next, grip the roll support arm and bring it to the desired degree mark on the bending die. At this stage, you must address the degree of spring back. Most pipes and tubes may have a degree of spring back after bending. Steel pipes may have a larger spring back than copper pipes. So, you must ensure to compensate for the process.
- Step 9: Preparations for Pipe Removal
Holding the handle in the closed position, remove the release lever. Now, step-by-step, remove the drive pins, and loosen the pivot arms, which are in tension. Change the position of the drive pin and put it in the next hole. Continue the bending process until the desired bend is achieved.
- Step 10: Remove the Pipe
Do the reverse engineering to remove the pipe. Start with a U-strap pin, a drive pin, and loosen the tensioner bolt. As the last step, close the pivot arms, and remove the pipe slowly from the machine.
Hope the entire process of bending a pipe and tube is clear from the step-by-step explanation given above. To know more about the pipe and tube bender, you can refer to some really informative videos. Links to some videos are shared below. You should always ask for high-quality bending machines to get good results. Quality machines can be availed from trusted, and experienced manufacturers, and suppliers, like Woodward Fab.