Abstract

Abstract This paper mainly studies the effect of process parameters on the roundness of the outer surface of the wheel hub during the spinning process of the forged and Spinned aluminum alloy wheel hub and summarizes the laws of the spring back phenomenon. Firstly, based on the finite element analysis platform of Simufact. Forming, the finite element simulation model of the spinning and forming of 6061 aluminum alloy wheel hub was established in this paper. Then, the spinning process of the 6061 aluminum alloy wheel hub was numerically simulated by using simulation software. Four main process parameters (temperature, feed rate, thinning rate, spindle speed) were selected for the single factor simulation analysis of four factors and five levels. The results show that the optimum process parameters are that the spindle speed is 400 r/min, the temperature is 400 °C, the feed rate is 0.75 mm/r and the thinning rate is 40%. The influence of process parameters on roundness error is as follows: feed rate > thinning rate > spindle speed > temperature. The influence of process parameters on spring-back of 6061 aluminum alloy wheel hub is as follows: thinning rate > feed rate > temperature > spindle speed. The factor that has a greater influence on the fluctuation of spring back is as follows: roller feed rate > thinning rate.

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