基于AlSi8系高强韧免热处理压铸铝合金开发及应用  

Development and Application of Heat-free Die-casting Aluminum Alloy with High Strength and Toughness Based on AlSi8 Series

作　　者：周泓江 黄华 朱宇 邓杏坚 钟宇毅 梁毅烽 林韵 闫锋 林宇飞 万里 ZHOU Hongjiang;HUANG Hua;ZHU Yu;DENG Xingjian;ZHONG Yuyi;LIANG Yifeng;LIN Yun;YAN Feng;LIN Yufei;WAN Li(Guangdong Hongtu Technology Co.,Ltd.,Zhaoqing 526108;Guangdong Hongtu Automotive Parts Co.,Ltd.,Guangzhou 510700)

机构地区：[1]广东鸿图科技股份有限公司,肇庆526108 [2]广东鸿图汽车零部件有限公司,广州510700

出　　处：《特种铸造及有色合金》2024年第8期1032-1037,共6页Special Casting & Nonferrous Alloys

基　　金：广东省重点领域研发计划资助项目(2022B0909070001)。

摘　　要：随着新能源汽车市场的快速扩张,一体化压铸技术逐渐成为车身结构件制造的重要发展方向。本研究成功开发出了一种基于AlSi8系的高强韧免热处理压铸铝合金,通过精细化成分调控实现铸态下的高抗拉强度与伸长率。通过断裂拉伸试验和疲劳耐久试验开发了材料仿真卡片,并在某款新能源车一体化前舱铸件上成功应用,验证了其力学性能和铆接性能。With the rapid expansion of new energy vehicle market,integrated die-casting technology has gradually become an important development direction for the manufacturing of body structural components.A heat-free diecasting aluminum alloy with high strength and toughness was successfully developed based on AlSi8 series,achieving high tensile strength and high elongation in as-cast state through fine composition regulation.The simulation card was exploited through fracture tensile test and fatigue endurance test,and the mechanical properties and riveting properties were verified in an integrated die-casting front cabin of new energy vehicle.

关 键 词：免热处理铝合金 一体化压铸 前舱铸件 

分 类 号：TG249.2[金属学及工艺—铸造] TG146.21[一般工业技术—材料科学与工程]