Bevel Gear Powder Metallurgy Pressed Parts

Product Description

Production process of bevel gear powder metallurgy sintered parts

Bevel gear powder metallurgy pressed parts are made of metal powder such as iron powder, copper powder, stainless steel powder, etc. (including non-metallic powder mixed with non-metallic powder) as raw materials, and are produced by forming-sintering method. The traditional process is, mixing— Pressing-sintering-shaping-post-processing, that is, firstly put the prepared high-purity mixed powder into the mold, press it under a certain pressure, and then place the compact in a controlled atmosphere furnace at a temperature lower than the melting point of the base material. Sintering is carried out at a high temperature to form a metallurgical bond between the powder particles. 

Advantages of bevel gear powder metallurgy process

1. No or only a small amount of cutting processing is required.

2. The material transfer rate can be as high as 97%.

3. The manufacturing tolerance of the part size is small and reproducible.

4. The material composition is adjustable.

5. The surface finish of parts is better.

6. The strength and wear resistance can be improved by heat treatment.

7. For self-lubricating or filtering, materials or products with controllable porosity can be provided.

8. It can manufacture parts with complex or peculiar shapes that cannot be manufactured by other metal forming processes.

Bevel gear powder metallurgy processing technology

Bevel gears are machined on special planing machines. Bevel gears can also be processed on a universal milling machine, but the size and shape of the teeth are less accurate. Bevel gears are often processed by a combined method, that is, preliminary processing is performed on a universal milling machine or a horizontal milling machine. As for finishing, that is, the calibration of the tooth profile, it is performed on a machine tool dedicated to processing bevel gears.

Bevel gear powder metallurgy pressed parts processing must first select high-quality alloy steel materials. It is best to purchase high-quality materials directly from material manufacturers, and then conduct professional forging to improve the compactness of the material structure. The second step is to carry out rough machining on a lathe, followed by normalizing or quenching and tempering, and then semi-finishing the rough machined material to make the shape of the bevel gear and make the tooth blank.

Afterwards, it needs to be tested, and only qualified tooth blanks can be milled. Gear milling is to mill the bevel gear blank on the gear cutting machine. After the gear milling, what needs to be done is to match the rolling inspection machine, and then to deburr; after the burr is removed, it must be heat treated. After the heat treatment is Grinding, for some bevel gears with high precision requirements, it is necessary to grind the bevel gears, and the bevel gears are processed after these several processes.

The above content is the introduction of the bevel gear processing process, do you know? Improve production efficiency and increase the service life of the machine. The processing flow of bevel gear processing is particularly important for bevel gears. Only good processing procedures can produce bevel gears with good quality.

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