频谱谐波时效技术在立式车床中的应用

The Application of VSR in Vertical Lathe

零件在制造加工过程中,由于受到热、冷、切削加工等作用,会在工件内部产生残余应力,致使工件内部应力发生变化,处于一个不平衡的状态,使工件产生变形、扭曲、裂纹、降低疲劳强度等质量问题。大多数企业都采用过自然时效、热时效、振动时效等措施来降低和均化工件的内应力,以保证工件精度的稳定性。本文阐述了频谱谐波振动时效在我公司生产的焊接结构件上应用所取得的良好效果以及与亚共振时效方式的对比结果。

Due to the heat,cold,cutting processing function,parts in manufacturing process will produce residual stress in the internal,which cause internal stress of workpiece change in an unbalanced state,such as the workpiece deformation,twisted,crack,reducing fatigue strength of quality problems.Most companies adopt VSR and TSR,VSR measures to reduce and homogeneous chemical parts forming stress to ensure the stability of the workpiece precision.This paper expounded the application of harmonic frequency spectrum vibratory stress relief used in the welded structure which produced by our company and achieved good effect and the result of the contrast to the resonance limitation.