Based on single factor test and complete factorial testing

numerical simulation was carried out by using Simufact software.The actual outer diameter and wall thickness deviation were taken as evaluation indexes

and the axial offset

working angle and arc radius were counted into as variables to reveal the interaction and influence between factors of dimensional precision of power spinning tin bronze.The results indicate that in the single factor testing

the deviation of the actual outer diameter and wall thickness is increased with the increase of axial offset

and it is decreased with the increase of working angle and arc radius.In the factorial testing

interaction between the factors plays a important role

even exceeding the main effects of some single factors.