【摘要】：基于Deform-3D與AZ31鎂合金材料模型對1號鎂合金電池筒的反擠壓成形過程進行數(shù)值模擬,完成模具設(shè)計及各工藝參數(shù)下反擠壓成形過程的對比優(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,溫度場向高溫區(qū)推進,并在280℃時,損傷值降至最低,說明在該溫度下AZ31鎂合金反擠壓過程的破損率最小;另外,在280℃下,隨著擠壓速度的提高,等效應(yīng)力場峰值不斷減小,等效應(yīng)變場峰值增大,溫度場峰值向高溫區(qū)推進,并在12 mm·s-1的擠壓速度下達到損傷極值最小值。根據(jù)優(yōu)化工藝進行反擠壓成形試驗驗證,生產(chǎn)出了合格的產(chǎn),品且筒壁組織均勻細化。
[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：2377700