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利用有限元模拟软件Deform-3D对典型H型截面构件的锻造过程进行数值模拟,并对不同模具和不同高宽比的坯料进行分析,可知采用闭式模具有利于此类锻件的成形,随着坯料高宽比的增大,锻件的晶粒大小、晶粒均匀性和动态再结晶体积分数都有提高,并且能降低成形载荷。利用闭式模具和高宽比较大的坯料能比较好地解决此类锻件成形所出现的粗晶、混晶及动态再结晶体积分数不高等问题,且有利于提高该类锻件的力学性能和生产设备的选择。
The finite element simulation software Deform-3D was used to simulate the forging process of typical H-section members, and the analysis of different molds and blank with different aspect ratio shows that the use of closed mold is beneficial to the forging forming. Aspect ratio increases, the grain size of the forgings, grain uniformity and dynamic recrystallization volume fraction are increased, and can reduce the forming load. The use of closed mold and high aspect ratio billet can solve the problem of coarse grain, mixed crystal and low dynamic recrystallization volume fraction formed in the forming of such forgings well and improve the mechanical properties and production of such forgings Equipment selection.