Aluminum extended motor body has the advantages of light weight, high strength, good heat dissipation performance, beautiful surface, corrosion resistance, cutting free inner chamber and so on. Aluminum alloy motor housing due to the poor concentricity between the housing and the end cover in the traditional aluminum alloy motor housing processing process, the aluminum alloy housing motor running noise is large. According to the processing method of aluminum alloy motor shell, a processing tooling of aluminum alloy motor shell is designed. Using this tooling for aluminum alloy motor housing can realize the processing of the two end faces of the aluminum alloy motor housing at the same time after one clamping. The concentricity of the inner hole of the aluminum alloy motor housing reaches ≤ 0.02mm, which improves the production efficiency by more than twice, and solves the problem of high noise of aluminum extended motor body.
The aluminium extruded motor body is not a complete cylinder, and there are many lugs and other auxiliary structures on the cylinder. The wall thickness of each part of the casting varies greatly, and the stress of the casting during the cooling and solidification process will be relatively large. It was previously impossible to accurately predict the deformation trend of castings. The poured aluminium extruded motor body casting has a diameter difference of 15 mm at the straight end, and the ovality is serious. By arranging annular casting ribs on the straight end, the diameter error of the straight end is within 1 mm.
At the two long columns on the outside of the cylinder, a "U"-shaped structure is locally formed, and the deformation here is also very large. For the arc part between the two columns at the upper end of the aluminum shell casting, the drawing requires that the thickness of the rear wall after processing is 12 mm, and the actual thickness is 5-7 mm after processing. The problem here was solved by setting the inverse deformation and increasing the arc thickness by 5mm towards the cylinder axis.
Compared with cast iron motor shell, aluminium extruded motor body has the advantages of light weight, good heat dissipation performance, good thermal conductivity, die casting, good plasticity, higher elongation than iron, low noise, good action stability, and the disadvantage is high price , Low hardness, suitable for installation in places where no effort is required.
The difference between cast iron or extruded aluminum for motor housing is:
1. The motor casing is made of cast iron, which is durable, durable, and has high mechanical strength. Disadvantages: its weight is relatively heavy, easy to rust, and its heat dissipation is worse than that of aluminum.
2. The motor shell is made of aluminum, which is beautiful, not easy to rust, easy to process, and has good heat dissipation performance. However, the mechanical strength is poor, the cost is also high, and the corresponding price is also high.
3. In terms of electrical properties, it is the same whether the motor casing is cast iron or aluminum.
Aluminum extended motor body common performance data:
1. Material grade: 6063-T5
2. Surface: untreated, aluminum natural color oxidation, electrolytic coloring
3. Inner diameter deviation: ≤ 0.0007 D; Roundness ≤ 0.0012d
4. Other motor shells of our factory are also used for: micro motor shell, environmental protection air conditioning motor shell, cooling fan motor shell, water-cooled air conditioning motor shell, air compressor motor shell, negative pressure fan, motor shell, electric vehicle motor shell, tricycle motor shell, servo motor special shell, injection molding machine motor, cooling tower motor, cylinder barrel, axial fan motor, electric tool motor, reduction motor, etc
