Strengthening Manual for Screws (Vol. 37) Is annealing something that can be done to screws too?
Suppressing dimensional changes! An introduction to annealing in blog format.
Screw components such as bolts and nuts are often made through plastic processing, specifically through cold forging, where the material is processed at room temperature. However, depending on the size and shape, there are cases where steel is heated and processed through hot forging. This hot forging disrupts the fiber structure of the steel, leaving internal stresses within it, which are the forces that resist when external forces are applied to the steel. This is referred to as "internal stress" or "residual stress," and if left unaddressed, these internal stresses can lead to dimensional changes over time. The process of reducing this internal stress is called "annealing," which helps to uniform the fiber structure of the steel and eliminate the residual stresses, thereby suppressing the occurrence of dimensional changes. *For more detailed content of the blog, please refer to the related links. For further inquiries, feel free to contact us.*
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