There are teeth on the rim, which can continuously mesh and transmit motion and power. The application of gears in transmission appeared very early. At the end of the 19th century, the principle of generating gear cutting method and the emergence of special machine tools and cutting tools using this principle. With the development of production, the stability of gear operation has been paid attention to.
There are teeth on the rim of gear forgings, which can continuously mesh and transmit motion and power. The application of gears in transmission appeared very early. At the end of the 19th century, the principle of generating gear cutting method and the emergence of special machine tools and cutting tools using this principle. With the development of production, the stability of gear operation has been paid attention to. It is mainly used in mining machinery, petrochemical industry, automobile manufacturing and other fields. The main materials are 20CrMnTi, 40Cr, 42CrMo, etc.
Gear forging products are mainly used in mining machinery, petrochemical industry, automobile manufacturing and other industries, of which more than 90% are automobile forgings, of which cold, warm and fine forgings account for about 5.2% of the total forgings. In 2004, the total output of forgings in China was about 3.26 million tons, including about 2.44 million tons of die forgings, about 65% and 1.6 million tons of automobile forgings, while cold and warm precision forgings accounted for about 4-5% of the total amount of automobile forgings. The forgings forged by free forging method on the forging hydraulic press greater than 10MN are called large forgings. The production industry of large forgings has reached a certain production scale and level.