(哈爾濱工業(yè)大學(xué) 材料科學(xué)與工程學(xué)院,
哈爾濱 150001)
摘 要: 根據(jù)模具幾何特征， 通過建立流體力學(xué)模型描述液體對(duì)板料單元的動(dòng)態(tài)影響， 結(jié)合有限元數(shù)值模擬技術(shù)對(duì)塑性差、 難成形材料防銹鋁LF6的充液拉深進(jìn)行數(shù)值模擬， 并進(jìn)行實(shí)驗(yàn)研究， 得到了防銹鋁充液拉深合理工藝參數(shù)。 結(jié)果表明， 充液拉深流體壓力作用與板料成形相結(jié)合進(jìn)行數(shù)值模擬分析的方法是正確的，采用充液拉深工藝可以有效提高塑性差、 難成形材料LF6的成形極限， 拉深比可達(dá)到2.4。
關(guān)鍵字: 防銹鋁LF6; 流體力學(xué); 充液拉深; 數(shù)值模擬; 筒形件
（School of Materials Science and Engineering, Harbin Institute of Technology,
Harbin 150001, China）
Abstract:Based on the mould features, the fluid mechanics models were founded. Integrating with the finite element method, the hydro-mechanical deep drawing of alumite LF6 was simulated. The alumite LF6 was formed by hydro-mechanical deep drawing, and the reasonable process parameters were obtained. The results show that the integration of fluid mechanics models and finite element method is right, the forming limit of alumite LF6 can be raised effectively with hydro-mechanical deep drawing, and the drawing ratio can reach to be 2.4.
Key words: alumite LF6; fluid mechanics; hydro-mechanical deep drawing; finite element simulation; cylindrical cups
