Shaft parts should according to different working conditions and requirements of the choice of different materials and heat treatment with different specifications (such as quenching, normalizing, quenching, etc.) in order to obtain the strength, toughness and wear resistance of certain.
45 steel is commonly used in shaft parts, it is cheap after quenching and tempering (or normalizing), can obtain better cutting performance, but also can obtain high strength and toughness and other mechanical properties after quenching, surface hardness of up to 45~52HRC.
40Cr and other alloy structural steels are suitable for shaft parts with medium precision and high rotational speed. This kind of steel has good comprehensive mechanical properties after quenching and tempering.
GCr15 bearing steel and spring steel 65Mn, the high-frequency quenching and tempering and surface hardening, surface hardness of up to 50~58HRC, and has high fatigue resistance and good wear resistance, can produce high precision axis.
|
