Powder metallurgy micro gear has become one of the key structural parts in manual transmission

Powder metallurgy micro gear has become one of the key structural parts in manual transmission

Manual transmission is a kind of transmission device, which is used to change the speed and torque transmitted by the engine to the driving wheel. Qinhuangdao Zhongwei precisely found that gear transmissions usually use powder metallurgy micro gears with different number of teeth to change speed and torque. From this principle, it can be seen that a pair of powder metallurgy micro gears with different number of teeth can change speed when they are engaged, and the speed of two powder metallurgy micro gears is inversely proportional to their number of teeth.

It can be seen from the above that powder metallurgy micro gear has become one of the key structural parts in manual transmission. For example, the metal powder injection molding manufacturer found that according to the requirements of manual transmission for its strength, improved economy and service performance, the load of powder metallurgy micro gear is the high energy stress generated on or near the surface, so it is not necessary for the whole part to achieve full tightness. Generally, powder metallurgy micro gears bear pulse profit when engaging, and the peak stress is near the gear surface. Therefore, powder metallurgy micro gears need high strength and high wear resistance mainly on or near the surface.

If the assembly shape components of general powder metallurgy miniature gears are not accurate, their service life and load capacity may be reduced, and the noise may be increased. Therefore, the general transmission has high requirements on the quality of powder metallurgy micro gears, which is generally higher than DIN7.

The above is about one of the key structural parts of the manual transmission, the powder metallurgy micro gear. If you want to know more about other contents of metal powder injection molding technology, please consult the ZHONGWEI precision metal powder injection molding MIM technical team in Qinhuangdao to answer for you!