Gear material selection and heat treatment instructions

The gear material selection and heat treatment instructions are as follows, for reference.

XNUMX. Gear material selection

1. General gear:

Choose medium carbon steel such as 45 steel and low and medium carbon alloy steel, such as 20Cr, 20CrMnTi, 40Cr, etc.

2. Important gears with higher requirements:

38CrMoAlA nitrided steel can be used, and the non-transmitting gear can also be made of cast iron, cloth bakelite or nylon.

3. The right choice of gear materialgearThe processing performance and service life have a direct impact.

4. Gears should be processed with suitable materials according to the working conditions used.

XNUMX. Gear heat treatment

1. Rough heat treatment

In order to eliminate the residual stress caused by forging and rough machining, improve the machinability of the material and improve the comprehensive mechanical properties, pre-heat treatment and normalizing or quenching and tempering are arranged before and after the tooth blank is processed.

2. Tooth surface heat treatment

In order to improve the hardness and wear resistance of the tooth surface, after the tooth profile is processed, heat treatment processes such as high frequency induction heating quenching, carburizing quenching, carbonitriding and nitriding are often carried out.

According to different purposes in gear processing, the above two heat treatment processes are arranged.

The above is the material selection and heat treatment instructions of the gears shared today, including but not limited to, if you have any unclear points or related processing requirements, you can consult EP for free.