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, Xavier 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.
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.
Choose reasonable cutting amount, the staff is selected as the cutting speed of the material, hardness, cutting state, the species of the material, the type of material, the cut-cutxia, and the like. These conditions are essential conditions that effectively reduce machine wear.
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, automotive, and energy industries.
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.
3 Processing methods
The main processing technology of drum shaft parts is turning, drilling and milling “lace”, and the special technology mainly includes fluorescent inspection, shot peening and static balancing.
3.1 Turning process
The cutting speed is 200m/min, the feed rate is 0.25mm/r, and the cutting depth is 2mm. When the tool is fed, the method of alternately oblique feeding and linear feeding is adopted. Due to the typical weak rigid structure. To avoid the problem of tool vibration, try to use the solution of wrapping a rubber rope sleeve on the outside of the part, which can effectively increase the rigidity of the cantilever of the part and reduce the “resonance” in the turning process phenomenon, thereby basically eliminating the problem of turning tool vibration, and the final surface roughness and wall thickness variation all meet the technical requirements. The processing effect after increasing the rigidity of the cantilever is shown in the figure.
Aluminum alloy precision parts and products are welcome because of light weight and exquisite and exquisite, the applications in industrial areas and daily necessities are increasingly wide. Especially in recent years, with the development of science and technology, the demand for product diversity is getting stronger. Therefore, the better the process of aluminum alloy products, the more favored by people, the greater the market demand, the higher the benefits. CNC machining is one of the best processing methods of current aluminum alloy shell products.