Micro motor grinding and polishing solutions

The precision machining of micro motors requires extremely high surface quality, especially for the grinding and polishing process of materials such as electric wood material commutators, oxygen free copper, silver palladium alloy, and iron core motors. According to different materials and requirements, using alumina grinding and polishing belts with different particle sizes can effectively improve the surface smoothness and performance of components.

The following are grinding and polishing solutions for different materials:

1.  Grinding material and particle size selection

We use alumina grinding belts with particle sizes of 30 µ m, 15 µ m, 9 µ m, 6 µ m, 3 µ m, and 1 µ m, and mesh sizes of # 600, # 1200, # 2000, # 3000, # 4000, and # 8000, respectively.  Choose according to different materials and requirements:

Particle size of alumina grinding belt:

30 µ m (# 600): Suitable for preliminary grinding of rougher surfaces to remove larger defects.

15 µ m (# 1200): Used to remove finer scratches and further refine the surface.

9 µ m (# 2000): Intermediate grinding, suitable for finer surface treatment.

6 µ m (# 3000): Fine grinding stage to improve surface smoothness.

3 µ m (# 4000): High precision grinding ensures a smoother surface.

1 µ m (# 8000): Ultra fine grinding, used to achieve the final mirror effect, improve the surface smoothness and gloss of components.

2.  Grinding and polishing solutions for different materials

Electric wood material commutator

Material characteristics: Bakelite is a hard plastic with good electrical insulation, but it is brittle and prone to cracking.

Grinding and polishing plan:

Rough grinding: Use a 30 µ m (# 600) alumina grinding belt to remove surface roughness and irregular defects.

oxygen free copper

Material characteristics: Oxygen free copper has high conductivity, a soft surface, and is prone to scratches.

Grinding and polishing plan:

Rough grinding: Use a 20 µ m (# 800) alumina grinding tape to remove larger scratches on the copper surface.

Gleaming silver-palladium

Material characteristics: Silver palladium alloy has high conductivity and corrosion resistance, and its surface is prone to oxidation, requiring special attention to treatment.

Grinding and polishing plan:

Rough grinding: Use a 12 µ m (# 1500) alumina grinding belt to remove surface oxide layer and larger defects.

Iron core motor

Material characteristics: The iron core is a key component in micro motors, requiring a smooth surface and good magnetic conductivity.

Grinding and polishing plan:

Rough grinding: Use a 3 µ m (# 4000) alumina grinding belt to remove surface defects and level the surface of the iron core.

3. Key precautions in the grinding and polishing process

Pressure control: Maintain uniform pressure to avoid local excessive grinding, resulting in part deformation.

Surface inspection: A surface inspection is carried out after each stage to ensure that there are no scratches or uneven areas.

4. Solution advantages

Improve surface finish: Through fine grinding and polishing, ensure that the surface of each component reaches a high finish, reducing friction and reducing noise.

Prolong the service life: improve the surface quality, improve wear resistance, extend the service life of micro-motors and micro-motors.

Suitable for different materials: The solution is suitable for a variety of materials, including bakelite, oxygen-free copper, silver palladium alloy and iron core, etc., to meet different processing needs.

Efficient production: Through the optimized grinding and polishing process, efficient production can be achieved, reducing production time and costs.

5. Applicable industry

Home appliances: such as power tools, micro-motors and micro-motors in home appliances.

Automotive: Used for automotive electric motors, sensors and other precision components.

Consumer electronics: Small motors in mobile phones, headphones, and digital products.

Industrial automation: such as micro-motors in robots and electric actuators.

Medical devices: such as micro electric motors in medical devices.

conclusion

The micro-motor grinding and polishing solution effectively improves the surface quality of micro-motors and micro-motors by using different particle sizes of alumina grinding strips, extending the service life and meeting the special requirements of various materials.

Can solve the following product grinding requirements

Classic recommended products

Specification parameter

Product advantage
The parameters such as tolerance, thickness, edge (rough edge), evennessof endface, surface impurities, etc. of polishing band bandwidth can meetthe requirements ofcustomers. After polishing, the polishing effect suchas the surface smoothness andimpurity content of the steering gear isexcellent.