For the manufacture of precision parts, it is crucial to choose the right steel.
Here are some of the most suitable types of steel for precision parts manufacturing, each with unique properties and advantages:
1. Alloy steel
Alloy steel is a steel that has been alloyed with other elements and has better strength, corrosion resistance and heat treatment performance than ordinary carbon structural steel. In the manufacture of precision parts, the commonly used alloy steels include:
* 590M17 gear steel: This is a special alloy steel with high strength, high toughness and good wear resistance. After carburizing and quenching, its hardness, wear resistance and fatigue resistance are further improved, which is very suitable for the manufacture of key precision parts such as gears, worms, and sealing sleeves. These parts play a vital role in the fields of automobiles, engineering machinery, ships, aerospace, etc.
* CrMo, 20CrMo, 30CrMo, 40Cr, 35CrMo, etc.: These alloy steels are also widely used in the field of mechanical manufacturing, especially in precision parts that require high strength and good wear resistance.
2. Stainless steel
Stainless steel has relatively stable chemical properties at room temperature and has the characteristics of anti-oxidation and corrosion resistance. There are many types of stainless steel, including chromium stainless steel, nickel stainless steel and manganese stainless steel. In the manufacture of precision parts, stainless steel is often used in occasions where corrosion resistance and anti-oxidation properties are required, such as food processing, chemical equipment, medical equipment and other fields.
3. Tool steel
Tool steel is a special steel material that has certain properties of deformation resistance, wear resistance and high temperature resistance after heat treatment for manufacturing grinding tools, stamping dies, punches, drawing dies, pressure dies, cutting tools, etc. Commonly used tool steels include Cr12, Cr12MoV, W6Mo5Cr4V2, etc. These steels perform well in the manufacture of high-precision and high-wear-resistant precision parts.
4. Carbon structural steel
Although carbon structural steel has advantages in strength and cost, its application is relatively limited in the manufacture of precision parts. However, some carbon structural steels (such as 45# steel) that have undergone special heat treatment and surface treatment can still be used to manufacture some precision parts that do not require particularly high precision.
Comprehensive consideration
When choosing the most suitable steel for precision parts, the following factors need to be considered comprehensively:
* The purpose and working environment of the parts: For example, whether the parts need to withstand harsh conditions such as high load, high speed, high temperature, high pressure or corrosion.
* Accuracy and surface quality requirements: Precision parts usually have high requirements for accuracy and surface quality, so it is necessary to select steel with good processing performance and surface quality.
* Cost and economy: On the premise of meeting performance requirements, the cost and economy of steel also need to be considered to ensure the market competitiveness of the product.
In summary, for the manufacture of precision parts, alloy steel (such as 590M17 gear steel), stainless steel and tool steel are more suitable choices.
The specific choice of which steel should be comprehensively considered according to the specific requirements and actual conditions of the parts.