How to solve the problem of difficult machining of cylinder piston rod

As far as the cylinder piston rod itself is concerned, it is a kind of part that is relatively difficult to process and has relatively high precision requirements. The cylinder piston rod is widely used in the telescopic arm of the crane in the construction vehicle, and it can be said to be a relatively critical component. Its dimensional accuracy is IT8, and its surface roughness value is Ra0.4.
Here, we need to know that because the cylinder piston rod is relatively long, its dimensional accuracy and surface quality and many other requirements are also very high, so its processing will be very difficult. But there are also some solutions here.
First of all, we need to know that when the cylinder piston rod is being processed, it is affected by cutting force, self-weight and centrifugal force during rotation. In this case, there will be an abnormal situation of bending and vibration. It will affect many aspects such as roundness, cylindricity, dimensional accuracy, and surface roughness.
Furthermore, during the cutting process, the piston rod of our cylinder is bent and deformed due to the heating and elongation of the workpiece, which will easily lead to many defects such as taper, waist drum shape, twist shape and bamboo shape. , In this way, in our cutting process, there are also many problems that we cannot predict.
In fact, when it comes to this, we also found that the problem of the difficulty in processing the cylinder piston rod itself is still our lack of perfection in technology and craftsmanship. Here we are required to start from the aspect of processing technology.
Regarding the difficulty of machining the cylinder piston rod, in addition to what we just said, we must solve the processing technology problem. In another aspect, we also need to solve the problem of the tool material when the cylinder piston rod is being processed. In addition, we also need to pay attention to the accuracy of dimensions and the surface quality of some steel materials.