Material Selection Notices of Gear Reducer Gears？
Gear transmission transmits the motion and power between any two axes in space by meshing the teeth, and it can change the form and speed of motion. Gear transmission has a wide range of applications, constant transmission ratio, high efficiency and long service life. In the process of designing and manufacturing mechanical parts, not only should the performance of materials be considered to adapt to the working conditions of parts and make them durable, but also the material should have better processing performance and economy, so as to improve the productivity of parts, reduce costs and reduce consumption. If the gear material is not properly selected, the parts will be damaged prematurely, or even fail. Therefore, we should be cautious in the selection of gear materials.
First of all, the mechanical properties of materials should be satisfied: the mechanical properties of materials include strength, hardness, plasticity and toughness, reflecting the characteristics of materials in the use process. There is contact stress at the contact of the tooth surface and maximum bending stress at the root of the tooth when the gear is engaged, which may cause strength failure of the tooth surface or the tooth body. Relative sliding occurs at all points of the tooth surface, resulting in wear and tear. The main failure modes of gears are pitting corrosion, gluing, plastic deformation and fracture of teeth. Therefore, gear material is required to have high bending fatigue strength and contact fatigue strength, sufficient hardness and wear resistance of tooth surface, and certain strength and toughness of core.
Secondly, the technological properties of materials should be satisfied: the technological properties of materials refer to the ability of materials themselves to meet various processing requirements. Gears are manufactured by forging, cutting and heat treatment. Therefore, attention should be paid to the technological properties of materials when selecting materials.
Third, the economic requirements of materials: the so-called economic means the minimum consumption to achieve maximum economic benefits. On the premise of satisfying the service performance, the selection of gear material should also pay attention to reducing the total cost of parts as far as possible.
In summary, we should proceed from reality when selecting gear materials, and consider the mechanical properties, technological properties and economic issues comprehensively. Only reasonable selection of gear materials can ensure gear quality, reduce product costs, and thus improve market competitiveness.
Portal：https://www.zwgearbox.com/
First of all, the mechanical properties of materials should be satisfied: the mechanical properties of materials include strength, hardness, plasticity and toughness, reflecting the characteristics of materials in the use process. There is contact stress at the contact of the tooth surface and maximum bending stress at the root of the tooth when the gear is engaged, which may cause strength failure of the tooth surface or the tooth body. Relative sliding occurs at all points of the tooth surface, resulting in wear and tear. The main failure modes of gears are pitting corrosion, gluing, plastic deformation and fracture of teeth. Therefore, gear material is required to have high bending fatigue strength and contact fatigue strength, sufficient hardness and wear resistance of tooth surface, and certain strength and toughness of core.
Secondly, the technological properties of materials should be satisfied: the technological properties of materials refer to the ability of materials themselves to meet various processing requirements. Gears are manufactured by forging, cutting and heat treatment. Therefore, attention should be paid to the technological properties of materials when selecting materials.
Third, the economic requirements of materials: the so-called economic means the minimum consumption to achieve maximum economic benefits. On the premise of satisfying the service performance, the selection of gear material should also pay attention to reducing the total cost of parts as far as possible.
In summary, we should proceed from reality when selecting gear materials, and consider the mechanical properties, technological properties and economic issues comprehensively. Only reasonable selection of gear materials can ensure gear quality, reduce product costs, and thus improve market competitiveness.
Portal：https://www.zwgearbox.com/
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