Is it necessary for heat treatment of long axis optical axis?

Linear optical axis is one of the most widely used high precision products nowadays. It is widely used in various industries by means of low friction coefficient and high precision positioning. In fact, this is also related to its various standard specifications. In fact, there are five major categories of linear optical axes, of which the simple is the ordinary linear optical axes, because of its high surface hardness requirements, so material and heat treatment methods are very important.
Optical axis is a typical part which is often used in mechanical products. It belongs to a kind of shaft parts. Its obvious characteristic is that its length is larger than diameter. This part also has a very wide range of applications and can be used to support transmission parts, transfer torque and bear loads. But there is a doubt that has not been solved. It is about the heat treatment of optical axis. Is there any need for it? The major axis
Secondly, the chrome-plated hollow shaft, because of its hollow structure characteristics, greatly reduces the weight and simplifies the structure. At the same time, chrome plated linear flexible shaft is applied in many fields because of its relatively moderate hardness. Chromium-plated linear optical axis is also a kind of linear optical axis, it is on the basis of ordinary linear optical axis plated with a layer of hard chromium, so it can be applied to easily rusty environment or bad environment.