X射线法测量铸造支座的残余应力

Measurement of Residual Stress in Cast Bearing by X-ray

采用无损X射线衍射技术,利用X-350A型X射线应力测定仪的侧倾固定ψ法测量铸造支座的残余应力,得到铸造支座底部和铸造支座圆柱部位的残余应力值以及一般分布规律。采用标准偏差计算方法得出铸造支座底部和圆柱部位残余应力的取值区间,为今后支座铸造工艺设计、制造、支座结构设计等提供指导,改善热处理工艺。

Based on non-destructive X-ray diffraction technique,by use of X-350 A X-ray stress determinator＇s roll fixedψact,the residual stress of cast bearings was measured.As a result,the residual stress and its general distribution laws of the cast supports were obtained.By standard deviation calculation method,the value range of the residual stress of cast bearings were calculated.This study will provide some guidance for the design and production of cast bearings in future.