Effect of Process Parameters on Wall Thickness Uniformity of Integrated Forming of Hollow Axle

Abstract

Abstract This paper innovatively puts forward the integrated forming of shape and hole of hollow axle. For verifying the feasibility of this method, the integrated forming of hollow axle is simulated by finite element method, and the hollow axle with good forming quality is obtained. On this basis, the effects of feed angle of the disc roll on the wall thickness uniformity of the middle long shaft section are explored. In order to characterize the wall thickness uniformity of each shaft, eight longitudinal sections are taken on each long shaft section, the wall thickness variance of the longitudinal section is calculated, and then the average value of the wall thickness variance of the eight longitudinal sections is used to represent the uniformity of the long shaft section wall thickness. The simulation results show that with the increase of the feed angle of the disc roll, the wall thickness of the long shaft section becomes more uneven, but the increase of the feed angle of the disc roll will improve the rolling efficiency; This paper expounds the influence law of feed angle on the wall thickness uniformity of hollow axle with integrated forming, which provides a theoretical basis for realizing the short and accurate forming of hollow axle.