Heat Treatment
Heat treating involves subjecting a part to high temperatures to alter its properties. This can include hardening, tempering and annealing. Heat treating can improve the strength, durability and wear resistance of a part.

Laser Marking
Laser marking involves the use of a laser to create a permanent, high-contrast mark on the surface of a part. Laser marking can be used for both functional and decorative purposes and can be performed on a variety of materials.

In summary, there are a variety of surface treatments that can be applied to CNC machined parts to improve their durability, corrosion resistance and aesthetics. Anodizing, plating, powder coating, chemical conversion coating, heat treating and laser marking are all common surface treatments that can help extend the life of CNC machined parts. By choosing the right finish for your application, you can ensure that your CNC machined parts will be protected and function as intended for years to come.

Aluminum Oxidation
Anodizing is a process that uses an electrolytic solution to form a protective oxide layer on the surface of a part. The layer provides excellent corrosion resistance and improved abrasion resistance. Anodizing can be done in a variety of colors, making it an attractive option for decorative applications.

Electroplating
Electroplating is the deposition of a thin layer of metal on the surface of a part. Plating can be done with a variety of metals including chrome, nickel, copper and gold. This finish provides excellent corrosion resistance, as well as improved electrical conductivity and aesthetics.

Powder Coating
Powder coating involves applying a dry powder to the surface of a part, which is then heated to form a hard, durable coating. Powder coating provides excellent corrosion and weathering resistance, as well as abrasion resistance. It can also be finished in a variety of colors, making it an attractive option for decorative applications.

Chemical Conversion Coating
Chemical conversion coating involves the formation of a thin, chemically bonded layer on the surface of the part. This layer provides excellent corrosion resistance as well as improved adhesion for subsequent painting or other surface treatments. Common types of chemical conversion coatings include chromate and phosphate coatings.

5, good processing performance: in order to meet the needs of precision machining, the material should have good cutting, grinding and molding performance, in order to manufacture high-precision, high-quality aviation parts.

High-precision machining: Wire EDM is a non-contact machining method that cuts the material by electric spark discharge, so it can achieve very high machining accuracy. This is very important for applications that require high-precision impeller contours, such as aerospace, Xavier automotive, and energy industries.

CNC machining techniques require that the control system can logically process programs with control encoding or other symbol instructions, coding it through the computer, thereby making machine tools and processing parts. The hair material is processed into semi-finished product parts and the like by tool cutting.

3.2 Milling process
The milling of drum shaft parts is mainly front and rear end "lace" milling. The technical requirements for the size of the flange surface "lace" . 48 semicircular "laces" of R6.35mm are distributed along the circumferential direction of the flange end face. Using φ11.8mm carbide coated milling cutter.
In milling, the application of coated tools and the optimisation of milling processing parameters have effectively reduced tool costs and improved the overall machining efficiency of the parts.

Complex shape machining: Wire EDM can be used to machine impellers with complex shapes, including spiral blades and very small blades. Since wire EDM is based on pre-programmed paths, it can achieve almost any shape of impeller.
Hard material machining: Impellers are usually made of high-strength and wear-resistant materials, such as titanium alloys, nickel-based alloys, etc. Wire EDM can effectively machine these hard materials because it does not rely on traditional cutting tools, but cuts by electric spark discharge.
Deformation-free machining: Since wire EDM is non-contact machining, it does not apply large forces or heat-affected zones, so deformation of the material can be avoided. This is very important for applications that need to maintain the shape and dimensional stability of the impeller.
Mass production and automation: Wire EDM can be applied to situations where impellers are produced in large quantities. Once the program is written, it can be processed continuously in an automated manner to improve production efficiency.
In general, the advantages of wire cutting impellers are high precision and complex shape processing capabilities, suitable for hard materials and applications that require shape stability. It is an advanced processing method suitable for specific impeller requirements.