This article goes on to discuss several additional factors that should be considered when selecting materials for CNC machining.

1. How is the material machinability

The machinability of the material means whether the part is good for machining. Stainless steel is rustproof, but stainless steel is not good for machining, its hardness is high, and it is easy to wear the tool during machining. Processing small holes in stainless steel, especially threaded holes, it is easy to break the drill, but also easy to break the tap, which will lead to very high processing costs.

 

2. Rust prevention treatment of materials

Rust prevention is related to the stability and appearance of the product. Such as 45 steel usually choose “blackening” treatment to prevent rust, or parts for painting and plastic spraying treatment, but also according to the use of environmental requirements, the use of sealing oil or rust prevention fluid in the process of protection.

There are many anti-corrosion treatment processes, but if the above methods are not very suitable, then the material must be replaced, such as the use of stainless steel. In any case, the rust prevention of the product should not be ignored.

3. What is the cost of the material

Cost is an important consideration in choosing a material. Titanium alloy, with its light weight, high specific strength and good corrosion resistance, is widely used in automobile engine systems and plays an immeasurable role in energy saving and consumption reduction.

Despite such superior performance of titanium alloy parts, the most important reason that prevents titanium alloy from being commonly used in the automotive industry is the high cost. If you don't really need it, please choose a cheaper material.