摘要
等温挤压工艺对于推动6A02铝合金在汽车发动机领域的普及有着重要作用。因此,基于DEFORM-2D有限元平台,建立了6A02铝合金管材(?480 mm×4 mm×1800 mm)等温挤压工艺预测模型,并按正交理论设计了模拟方案。研究揭示了模角、定径带长度、坯料初始温度、挤压速度、摩擦系数等重要成形参数对模口管材温度波动幅值的影响显著性顺序以及影响规律。结果对制定6A02铝合金管材等温挤压工艺过程具有重要理论指导意义。
Isothermal extrusion process plays an important role in promoting the popularization of 6A02 Aluminum alloy in the automobile engine field. Therefore, a prediction model of isothermal extrusion process for the 6A02 aluminum alloy tube（φ48 mm ×4 mm ×1800 mm） was established based on the DEFORM-2D FE platform. And simulated scheme was designed according to the orthogonal theory. The study reveals the influencing significant sequence and the influence law of die angle, calibrating strap length, initial temperature, extrusion speed and friction coefficient on die tube temperature fluctuation amplitude. The results have important theoretical significance to constituting isothermal extrusion process of 6A02 aluminum alloy tube.
出处
《热加工工艺》
CSCD
北大核心
2015年第11期144-146,149,共4页
Hot Working Technology
基金
陕西省教改重点项目(11BY99)
西京学院科研基金项目(XJ 140112)
