Macro-and Microscopic Simulation of Ring Rolling for Aluminum Alloy Thin-walled Special-shaped Section Ring

doi:10.3901/JME.2021.12.179

Abstract

Abstract: As an advanced plastic forming technology for seamless rings, ring rolling is difficult to realize the near-net shaping of thin-walled conical aluminum alloy rings with inner ribs. For 2A14 aluminum alloy ring with thin-walled special shaped section, a coupled macro-micro finite element model of the ring rolling is developed. The ring with rectangular section is selected as the billet, the optimized roll shape is obtained by the finite element simulation. The effects of deformation temperature and feeding speed of mandrel on the formability and microstructure evolution of ring are investigated, which can obtain the ring rolling process parameters with uniform microstructure and good filling. The optimum process parameters are that the billet temperature is 470℃, the feeding speed of the mandrel is 1.2 mm/s, the king roll rotation speed is 30rpm, and the speed of the upper cone roll is 0.6mm/s, which supply the theoretical guidance for the actual manufacturing.

Key words: ring rolling, reinforced thin-wall cone ring, 2A14 aluminum alloy, microstructure, process optimization

CLC Number:

TG156

TIAN Xiao, ZHANG Heng, WANG Hengqiang, WANG Bing, CHEN Fei. Macro-and Microscopic Simulation of Ring Rolling for Aluminum Alloy Thin-walled Special-shaped Section Ring[J]. Journal of Mechanical Engineering, 2021, 57(12): 179-191.

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