Blank forging: How to choose the right material?”

The material selection of tooth forging is very important for its quality and performance. When selecting the material of the tooth forging, the following factors need to be considered:

Chemical composition: According to the use and working conditions of the gear, select the steel with the right chemical composition. For example, for gears with high strength and high wear resistance, steels containing higher alloying elements, such as alloy steel or stainless steel, can be selected.

Mechanical properties: The mechanical properties of the material determine the strength and toughness of the gear. The selection of materials with good mechanical properties can ensure that the gear has sufficient strength and toughness when it is subjected to load and impact.

Heat treatment performance: Heat treatment is an important link to improve gear performance. The selection of materials with good heat treatment performance can ensure that the gear can achieve the required hardness, strength and toughness after heat treatment.

Corrosion resistance: For gears that need corrosion resistance, choose materials with good corrosion resistance, such as corrosion resistant steel or stainless steel.

Machinability: The machinability of a material is critical to the manufacture of high-quality gears. The selection of materials with good machining properties can ensure that the gear is not prone to cracks, deformation and other problems during processing, and improve manufacturing efficiency and quality.

According to the above factors, the commonly used tooth forging materials include medium carbon steel, low and medium carbon alloy steel, high strength steel, stainless steel and so on. Among them, medium carbon steel and low and medium carbon alloy steel have better mechanical properties and processing properties, suitable for manufacturing most transmission gears; High strength steel and stainless steel have high strength and wear resistance and are suitable for the manufacture of high strength and wear resistance gears.

In summary, the selection of the appropriate tooth forging material needs to consider the use of the gear, working conditions, mechanical properties, heat treatment properties, corrosion resistance and processing properties and other factors. The correct material selection can ensure the quality and performance of the gear and improve the stability and reliability of the mechanical system.