Taking tin bronze QSn7-0.2 as samples

the orthogonal experiment was designed by choosing the thinning rate

the pass ratio

the one-time feed ratio and the second-pass feed ratio

which mainly affected the two-pass spinning process.And the evaluation index was described by internal and external axis straightness error.The optimal combination of parameters and the order of influence on evaluation index of the sliding bearing were obtained by using Taguchi algorithm and analyzing the signal-to-noise ratio of the two-pass spinning process simulation values obtained by the Simufact to optimize the process parameters.The parameters combination after optimization and those before optimization were compared and tested.The results show that the error of internal and external axis straightness can be reduced effectively by using Taguchi algorithm

so that the sliding bearing after two-pass spinning can have the better mechanical properties.