News
May 11,2024
What are the factors that affect the internal stress of heat treatment of shaft forgings?
There are three basic types of internal stresses that may be generated during heat treatment of shaft forgings. In actual production, shaft forgings always produce two or three basic internal stresses at the same time, so the residual stress of the actual workpiece after heat treatment is the result of the superposition of several basic internal stresses. The distribution of residual stress after superposition is very complex and closely related to the specific parameters of the heat treatment process. The following is a specific analysis of the main factors affecting the internal stress of the heat treatment of shaft forgings.
ShaftForgingsIn actual production, shaft forgings always produce two or three basic internal stresses at the same time, so the residual stress of the actual workpiece after heat treatment is the result of the superposition of several basic internal stresses. The distribution of residual stress after superposition is very complex and closely related to the specific parameters of the heat treatment process. The following is a specific analysis of the main factors affecting the internal stress of the heat treatment of shaft forgings.
The residual stress in the case of the heart is not hardened, in the case of non-quenching, the internal stress distribution is the type of thermal stress, the surface hardening layer is the pressure stress, so the surface quenching crack tendency is small. However, at this time the heart produces a pull stress, and when the quenching layer is very deep and the heart is very small, the heart pull stress to the range is very small, the value is very large.
Related News
Mar 15,2024
Different Forging Deformation Methods When Forging Forgings
Different forging deformation methods, such as free forging, open die forging, closed die forging, extrusion, top upsetting, high-speed die forging, rolling, etc., its essence is to apply different forms of thermal and mechanical conditions to the blank through the corresponding forging equipment processing and die, so as to produce different physical fields and organizational properties evolution processes. The same forging, the choice of deformation mode is reasonable, the quality of the forging is very different, the wrong choice may make the forming process can not be achieved, not very reasonable choice will make forming difficult, prone to many quality defects.
May 11,2024
How to determine the free forging deformation process?
Free forging should pay attention to a lot of things, but not every one should pay close attention to, how to determine the free forging deformation process.
May 11,2024
Does different forging ratio affect the quality of forgings?
The microstructure and mechanical properties of forgings are related to many factors, and the forging ratio is one of the main factors affecting the quality of forgings. Today we come to understand the forging ratio.
May 11,2024
What is the organizational stress of crane wheel forgings?
If there is phase change in the cooling process of crane wheel forgings, it will produce tissue stress. As with heating, the tissue stress is also caused by the change of the specific volume of the tissue before and after the phase change, and the outer layer and the heart phase change are different.
