(1. 哈爾濱理工大學(xué) 材料科學(xué)與工程學(xué)院，哈爾濱 150040；2. 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: 針對鋁鎂合金等低塑性板材的成形需要，提出了帶主動徑向加壓的雙路徑加載充液拉深技術(shù)。應(yīng)用數(shù)值模擬的方法，采用大型非線性動力顯式分析軟件ETA/Dynaform5.5，對
關(guān)鍵字: 5A06鋁鎂合金；充液拉深；數(shù)值模擬；雙路徑；主動徑向壓力
（1. School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China;2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 15001, China）
Abstract:Aimed at the forming need of aluminum-magnesium alloy and other low plasticity materials, a new double loading paths process of hydrodynamic deep drawing (HDD) with independent radial hydraulic pressure and chamber pressure was brought forward. The numerical simulations of the aluminum-magnesium alloy (5A06) flat bottom cylindrical cup’s HDD with double loading paths process were carried out by employing the large non-linear dynamic explicit analytical software ETA/Dynaform5.5. The chamber pressure variations to the formability effects were discussed. The influence of different independent radial hydraulic pressure loading paths on the forming quality was analyzed by taking the wall-thickness distribution as standard. The results show that adopting the reasonable liquid chamber pressure loading curves and the independent radial hydraulic pressure from 20 MPa to 45 MPa can increase the forming limitation of aluminum-magnesium alloy cup effectively. The drawing limitation obtained is 3.1.
Key words: aluminum-magnesium alloy (5A06); hydrodynamic deep drawing (HDD); numerical simulation; double loading paths; independent radial hydraulic pressure
