为研究7075铝合金圆环初始残余应力值较大影响加工这一问题，通过采用沿环向压缩7075铝合金圆环的方法研究了对残余应力的降低效果。使用ABAQUS仿真软件对7075铝合金圆环分别进行淬火和环向压缩的模拟仿真，分别得到7075铝合金圆环的初始残余应力场以及压缩后的残余应力场。结果表明：采用沿环向压缩这一方法可以有效降低淬火产生的初始残余应力。经过前后数据对比发现，当压缩变形量为1.312 5%时，淬火残余应力幅值整体下降原残余应力数值57%，径向残余应力和周向残余应力的幅值均降低了约58%。可见采用环向压缩的方法可以有效降低铝合金环件的残余应力。

In order to study the problem that the processing of 7075 aluminum alloy rings was affected by the large value of initial residual stress, the effect of reducing the residual stress was investigated by using the method of compression of 7075 aluminum alloy rings along the ring direction. ABAQUS simulation software was used to simulate the quenching and compression of 7075 aluminum alloy rings to obtain the initial residual stress field and the residual stress field after compression. The results show that the initial residual stresses generated by quenching can be effectively reduced by the method of compression in the ring direction. After the data before and after compression is compared, it is found that when the compression deformation amount is 1.312 5%, the amplitude of quenching residual stress decreases by 57% of the original residual stress value as a whole, and the amplitude of radial residual stress and circumferential residual stress decreases by about 58%. It is concluded that the method of circumferential compression can effectively reduce the residual stresses of aluminum alloy ring parts.