VW103Z镁合金舱体铸件铸造工艺研究  

Study on Casting Process for VW103Z Magnesium Alloy Cabin Casting

作　　者：王迎新[1] 付彭怀[1] 彭立明[1] WANG Ying-xin;FU Peng-huai;PENG Li-ming(National Engineering Research Center of Light Alloy Net Forming,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学轻合金精密成型国家工程研究中心,上海200240

出　　处：《铸造》2023年第8期969-979,共11页Foundry

基　　金：国家重点研发计划(2021YFB3701000);国家自然科学基金(U21A2048、51821001);广东省重点领域研发计划(2020B010186001)。

摘　　要：针对VW103Z镁合金舱体铸件的结构特点,设计了缝隙式浇注系统,利用Anycasting软件对舱体铸件低压铸造工艺进行了数值模拟,并进行了试验验证。结果表明:对于VW103Z镁合金舱体铸件,应将缝隙浇道延伸超出铸件下端面,使合金液以底注方式进入,可以保证合金液以层流方式平稳充型。缝隙浇道数量采用N=(πD_(上端面)+πD_(下端面))/320进行计算获得。对于本研究中VW103Z镁合金舱体铸件,采用8根缝隙浇道,缝隙浇道厚度为铸件壁厚的0.75~1倍,宽度为35 mm,直径为铸件壁厚的4倍,充型速度≤42 mm/s时,可以获得合格的铸件。The slot gating system was designed according to the structural characteristic of VW103Z magnesium alloy cabin casting.The low pressure casting process was simulated using the AnyCasting software and validated by actual production.The results showed that,for the VW103Z magnesium alloy cabin casting,the smooth filling of the alloy melting by laminar flow way was achieved through the bottom pouring by extension of the slot gating that exceeding the casting bottom end surface.Number of the slot runners was calculated using the equation of N=(πD top end surface+πD bottom end surface)/320.Good casting quality of the VW103Z magnesium alloy cabin casting in this investigation was obtained by the low pressure casting process,that including,8 slot runners were used,thickness of the slot runner was 0.75 to 1 times of casting wall-thickness,width of the slot runner was 35 mm,diameter of the slot runner was 4 times of the casting wall-thickness,and filling velocity of the cabin casting was not greater than 42 mm/s.

关 键 词：VW103Z镁合金 缝隙式浇注系统 低压铸造工艺 

分 类 号：TG292[金属学及工艺—铸造]