What is the effect of stress relief annealing process on the mechanical properties of DCYK450-50-IV gear reducer housing

The influence of stress relief annealing process on the mechanical properties of DCYK450-50-IV gear reducer case mainly includes the following aspects:

Improving strength: By eliminating residual stress inside the box, the material becomes a more uniform overall structure, reducing stress concentration points and enhancing its ability to resist external forces, the strength of the box is improved, and it can better withstand various forces generated during gear transmission.

Improving toughness: During the annealing process, the microstructure inside the material is adjusted, which may transform the deformation mode of some brittle grains into ductile deformation. This allows the box to better absorb energy, resist damage, and improve toughness when subjected to external forces such as impact and vibration.

Enhanced plasticity: Stress relief annealing increases the number of dislocations and plastic deformation, improving the plasticity and deformation ability of the box material, enabling it to undergo greater deformation under external forces without easily breaking, which is beneficial for withstanding a certain degree of deformation without damage during assembly and use.

Stable dimensional accuracy: Although the main purpose of stress relief annealing is not to improve dimensional accuracy, by eliminating residual stress, it can effectively reduce the deformation of the casing caused by stress release, thereby making the dimensional accuracy of the casing more stable, ensuring the installation accuracy of components such as gears and bearings, and ensuring the normal operation of the gearbox.

However, if the process parameters for stress annealing are not properly selected, such as high temperature or long holding time, it may lead to grain growth of the box material, which in turn reduces its strength and hardness; Excessive cooling speed may also generate new residual stresses, affecting the mechanical properties of the casing.