7075铝合金异形板淬火过程有限元仿真

采用ABAQUS软件针对7075铝合金异形板进行三维建模与淬火过程仿真计算,通过对ABAQUS软件进行二次开发,研究了淬火介质、淬入方向与淬入速度对7075异形板残余应力与淬火畸变的影响规律。仿真结果表明,与水淬相比采用10%浓度的UCON淬火液可减少残余应力50.1%;淬入方向与异形板平面垂直时残余应力最小,且淬火畸变与淬入方向存在一定的相关性;对比数据表明,在一定范围内冷却速度越快,残余应力明显减小。

Finite element analysis of quenching process of 7075 aluminum alloy profiled plate

ABAQUS software was used to 3D model and simulate the quenching process of 7075 aluminum alloy profiled plate. With the secondary development of the software,the influence of quenching medium,quenching direction and quenching speed on the residual stress and quenching distortion of the profiled plate were studied. The simulation results show that UCON quenching solution with 10% concentration can reduce residual stress by 50. 1% compared with water quenching. The residual stress is the smallest when the quenching direction is perpendicular to the plane of the profiled plate,and the quenching distortion is related to the quenching direction. The data show that the faster the quenching speed in a certain range,the reduction of residual stress is more significant.