Why CNC stainless steel processing is more difficult

In modernization and daily life, the CNC machining center in Dongguan is often used as our modern industrial manufacturing. The fundamental reason is that it needs to be used in many areas, so we understand it better. Special attention should be paid to reasonable operation methods and key points in the production and processing of CNC machining centers in Dongguan City, so that a stronger effect can be obtained.

Now, the stainless steel sheet market is used in aerospace, power generation equipment manufacturing, engineering construction, food and other industrial sectors and in daily life. During the entire process of the CNC machining center, stainless steel plates are very prone to common failures such as accelerated CNC tool wear, poor data integrity of the production and processing surface layer, and difficult cutting and removal, which greatly affects the quality and production of stainless steel plate production and processing products. Cycle time and production costs. Now let's understand why CNC stainless steel processing is difficult to process, as follows:

1. High temperature resistance and high plastic deformation tendency

Compared with ordinary grade steel, the strength and hardness standards of stainless steel plates are not high, but in view of their richness in chromium, nickel, manganese and other metal elements, they have excellent plastic deformation and flexibility, high temperature strength and high plasticity Deformation tendency, so the turning load is relatively large. In addition, during the entire turning process, many carbides will be separated from the internal structure of the low alloy steel, which will increase the scratching effect of the CNC tool.

2. Large contact stress

The plastic deformation of the stainless steel plate during the entire turning process is relatively large, especially the low alloy steel (its tensile strength exceeds 1.5 times of 45 steel), which increases the contact stress

3. Cutting and CNC tool sticking is serious

In the whole process of turning, cutting piles are easily produced, which not only adversely affects the appearance roughness of the production and processing appearance, but also easily produces the situation that the cutting of the surface layer of the CNC tool is not easy to bend and break .

Special tools for closed and semi-closed chips are very prone to chip jamming, which improves the appearance roughness of production processing and cutting

4. Large thermal expansion coefficient

This is 1.5 times the thermal expansion coefficient of carbon steel. Under the adverse influence of the turning temperature, the steel only exhibits thermal expansion, which adversely affects the precision of the scale.

5. Small heat transfer coefficient

Generally the heat transfer coefficient of low carbon steel is about 1/4 ~ 1/2, the turning temperature is high, and the CNC tool wears out quickly.