Finite element analysis of roll forming process for AZ31B magnesium alloy tube

摘要

Most magnesium tubes are produced by extrusion, however roll forming could be anothenprocess to produce magnesium tubes since magnesium alloy sheet has become popular. In thisnstudy, to design the roll forming line for magnesium alloy AZ31B tube, finite element analysis wasnconducted to determine the design solution and to predict any forming problems. The results onthe analysis showed that the finite element method could be a good tool to determine the angulanvelocity of each roll stand, which is an important point in the design of the roll forming processnThe deflection of the front end of the strip at the exit of #1 roll stand, which is an obstacle in rolnforming, was predicted and the way to control it was investigated. According to the simulationnresults of the given roll forming design, roll forming at room temperature is not possible, nonbecause of poor formability of the magnesium alloy but because of its high level of springback