Stainless steel rod material commonly used for precision shaft parts, shaft core-rotor shaft
Three and recommendPrecision shaftParts commonly used stainless steel rod material:
The shaft parts should be based on different working conditions and requirements, choose different materials, and adopt different heat treatment specifications (such as quenching and tempering, normalizing, quenching, etc.) to obtain a certain strength, toughness and wear resistance.
45Steel is a common material for shaft parts. The price is cheap, after tempering (or normalizing) treatment, better cutting performance can be obtained, and comprehensive mechanical properties can be obtained, such as higher strength and toughness. After quenching, the surface hardness can reach45~52HRC. bearing steelGCr15and spring steel65Mn, After tempering and high-frequency surface) firing, the surface hardness can reach50~58HRC, Has high fatigue resistance and wear resistance, and can produce shafts with higher precision.
Spindles of precision machine tools (such as grinding wheel shaft of grinding machine, spindle of drilling machine) can be selected38CrMoAIANitrided steel. After quenching and tempering and surface nitriding treatment, the steel can not only obtain high surface hardness, but also maintain a soft core, so it has good impact resistance and toughness. Compared with carburized refractory steel, it has the characteristics of small heat treatment deformation and high hardness.
The shaft part is one of the typical parts often encountered in the machine. It is mainly used to support transmission parts, transmit torque and bear load. The shaft part is a rotating part with a length greater than the diameter, and usually consists of the outer cylindrical surface of the concentric shaft, the conical surface, the inner hole and the inner thread and the corresponding end face. According to different structural shapes, shaft parts can be divided into optical axis, stepped shaft, hollow shaft and crankshaft.
Length to diameter ratio less5The steel shaft is called the short shaft, and the ratio of length to diameter is greater20The steel shaft is called the slender shaft.
Precision shaft, shaft core, rotor shaft
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2024-01-02
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