The residual stresses during the cold tube drawing process affect the quality of the final tube products significantly. In this study, a new development of measurement technique that is built on the removing layer method (RLM) is developed to measure the axial and the hoop residual stresses (ARS, HRS) inside the tube wall for AISI 1010 steel. The tube is produced by the cold tube drawing process with a fixed straight mandrel (fixed plug). The RLM by milling process is performed on the inner and the outer surfaces of the tubes while the tee rosette strain gages (TRSGs) are fixed at the inner and the outer tube surfaces respectively for strain measurements. An axisymmetric finite element model (AFEM) based on explicit dynamic analysis is also performed to predict the ARS and the HRS within tube thickness. The experimental and finite element results are compared with variable X-ray diffraction (XRD) results. It is found that the results are in good agreement and the RLM is proved to be one of the appropriate methods to measure residual stresses inside the tube wall. The results showed that residual stresses present inside the tube wall are completely different by different reduction of areas of R = 16 and 23%.

冷管拉伸过程中的残余应力会显着影响最终管产品的质量。在这项研究中，开发了一种基于去除层法（RLM）的测量技术的新发展，该技术可测量AISI 1010钢在管壁内部的轴向和环向残余应力（ARS，HRS）。该管子是通过冷拔管工艺制成的，带有固定的直型芯棒（固定的塞子）。在管的内表面和外表面上执行通过铣削加工的RLM，同时将三通玫瑰花形应变计（TRSG）分别固定在管的内表面和外表面上以进行应变测量。还执行了基于显式动力学分析的轴对称有限元模型（AFEM），以预测管厚内的ARS和HRS。将实验结果和有限元结果与可变X射线衍射（XRD）结果进行比较。结果表明，该结果吻合良好，RLM被证明是测量管壁内部残余应力的合适方法之一。结果表明，管壁内部存在的残余应力由于不同面积的减小而完全不同。R  = 16和23％。