基于FEM的7075铝合金轿车发动机油管接头挤压过程的温度场分析  

Analysis of Temperature Field of 7075 Aluminum Alloy Oil Line Connector for Car Engine During Extrusion Process Based on FEM

作　　者：韩艳艳[1] 

机构地区：[1]河南机电高等专科学校材料工程系,河南新乡453002

出　　处：《热加工工艺》2013年第9期140-142,146,共4页Hot Working Technology

摘　　要：基于DEFORM-3D软件,分析了7075高强铝合金轿车发动机油管接头热挤压成形过程,揭示了工艺参数对热挤压成形过程中材料最高温度的影响。结果表明,随着挤压速度的增大,最高温度增大;随着坯料加热温度的升高,最高温度下降;随着摩擦系数的增大,最高温度增大;随着模具预热温度的增加,最高温度增加。合理的挤压工艺参数为:挤压速度2～8 mm/s;坯料加热温度390～450℃;摩擦系数<0.3;模具预热温度400～440℃。The extrusion process of 7075 high strength aluminum alloy connector for oil line of the engine was analyzed based on Deform-3D software. The effect of process parameters on the maximum temperature of material during hot extrusion process were exposited. The results show that with the increase of the extrusion speed, the maximum temperature increases; with the increase of the initial temperature of the billet, the maximum temperature increases; with the increase of the friction, the maximum temperature increases; with the increase of the initial temperature of dies, the maximum temperature increases. And the reasonable extrusion parameters are the extrusion speed 2-8mm/s; the billet heating temperature 390-450℃ ; the friction coefficient 〈0.3; the die preheating temperature 400-440℃.

关 键 词：7075铝合金 油管接头 挤压 最高温度 

分 类 号：TG376[金属学及工艺—金属压力加工]