１前言传统的铝合金板材表面应力测试方法，是将整块板片切断成能够放置在仪器测试台上的小块试样。经过适当的表面处理后，在实验室用Ｘ射线衍射仪进行测试。并采用相应的仪器记录下其衍射峰角度。根据换算公式计算出应力值。而由于测试仪器精度，记录系统和计算过程的误... 1 Introduction The traditional aluminum plate surface stress test method is to cut the entire plate can be placed in the instrument test bench small sample. After appropriate surface treatment, the X-ray diffractometer was used in the laboratory to test. And use the appropriate instrument to record the diffraction peak angle. According to the conversion formula to calculate the stress value. Due to the accuracy of test equipment, errors in the recording system and calculation process ...