Sintered Gears VS Machined Gears

sintered gear

Sintered gear is the recrystallization process of metal powder formed at high temperature, without rolling process, without forming metal fiber flow, which is a non-oriented mechanical property.

Machined gear

Machining gears A process that uses mechanical methods to obtain specific structure and precision of gears.

Advantages of sintered gear:

  • 1, low cost, high production efficiency, one molding, no need to re-process the teeth after molding.
  • 2, Due to the processing characteristics of powder metallurgy, oil-containing parts can be made to form non-lubricated parts, but the effect is still worse than oil bath lubrication, which belongs to the boundary lubrication state.
  • 3, there is no waste in the gear forming process, and the utilization of steel resources is better.

Sintered gear disadvantages:

The main advantage of powder metallurgy is that it is sintered from powder materials, so because of the good post-lubrication, the sintered tooth shape and all sizes can be formed, generally do not need additional processing; The disadvantage is that compared with the traditional machining gear, the strength is insufficient, can not transfer large torque, the tooth accuracy is generally 6 ~ 9, and the dimensional accuracy is generally the highest IT7 ~ 6.

 sintered gear

Advantages of machine gears

1. Low cost
The equipment required for ordinary machine tools to process gears is relatively simple and the cost is low, so the production cost can be effectively reduced in mass production.
2. High processing quality
The ordinary machine tool has high precision and good stability, which can ensure the machining accuracy and mutual coordination accuracy of the gear, and ensure the work efficiency and service life of the gear.
3. Strong processing ability
Ordinary machine tools can process gears of various shapes, and the processing capacity is strong, and can meet the requirements of the use of gears under different working conditions.

Disadvantages of machine gears

1. Low production efficiency

Ordinary machine tools need to go through different processing steps, the processing cycle is relatively long, so the production efficiency is low, can not meet the needs of large-scale production.

2. Limited machining accuracy

The accuracy of ordinary machine tools is affected by the skill level of equipment and operators, and can not meet the requirements of high-precision gear processing, and can not meet the needs of high-end machinery.

3. High machining roughness

The surface quality of ordinary machine tools is low, and the processing roughness is relatively high, so it needs to be polished and other treatments in the later period, which increases the processing cost and production cycle.

machined gear

The gear is the primary transmission component in an automobile’s movement, and the quality of its processing directly affects the assembly’s vibration, noise, and dependability as well as the overall vehicle. In certain cases, it even becomes a major barrier to further product innovation. Automotive gears are often mass-produced, specialized items. There is a large range of representative cylindrical and bevel gears, which require distinct process combinations based on their differing constructions and levels of accuracy. Your needs may influence the process method that you choose. For the best quotation and guidance, please get in touch with us if you’re unsure of the process your equipment is in.

Post time: Dec-22-2023