【摘要】：基于Deform-3D與AZ31鎂合金材料模型對(duì)1號(hào)鎂合金電池筒的反擠壓成形過(guò)程進(jìn)行數(shù)值模擬,完成模具設(shè)計(jì)及各工藝參數(shù)下反擠壓成形過(guò)程的對(duì)比優(yōu)化。結(jié)果表明:在相同擠壓速度下,隨擠壓溫度升高,等效應(yīng)力峰值不斷降低,等效應(yīng)變峰值不斷升高,溫度場(chǎng)向高溫區(qū)推進(jìn),并在280℃時(shí),損傷值降至最低,說(shuō)明在該溫度下AZ31鎂合金反擠壓過(guò)程的破損率最小;另外,在280℃下,隨著擠壓速度的提高,等效應(yīng)力場(chǎng)峰值不斷減小,等效應(yīng)變場(chǎng)峰值增大,溫度場(chǎng)峰值向高溫區(qū)推進(jìn),并在12 mm·s-1的擠壓速度下達(dá)到損傷極值最小值。根據(jù)優(yōu)化工藝進(jìn)行反擠壓成形試驗(yàn)驗(yàn)證,生產(chǎn)出了合格的產(chǎn),品且筒壁組織均勻細(xì)化。
[Abstract]:Based on Deform-3D and AZ31 magnesium alloy material model, the back extrusion process of No. 1 magnesium alloy battery barrel was numerically simulated, and the die design and the contrast optimization of back extrusion forming process under various process parameters were completed. The results show that at the same extrusion speed, the peak value of equivalent stress decreases and the peak value of equivalent strain increases with the increase of extrusion temperature, and the temperature field advances to the high temperature region, and the damage value decreases to the lowest at 280 鈩，

本文編號(hào)：2377700