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为了获得变形均匀的筒形件,提出采用有限元数值模拟方法对错距旋压、等距旋压和对轮旋压三种强力旋压成形工艺方案进行分析,介绍了三种强力旋压成形工艺方法及其原理,并制定了相应的成形工艺方案。以20钢筒形件为研究对象,采用MSC.MARC有限元软件,对三种不同的强力旋压成形过程进行了数值模拟。结果表明,旋压成形后工件的内外表面存在一定的应力及应变差;采用对轮旋压所获得筒形件内外表面应力应变差远小于错距旋压及等距旋压,采用等距旋压成形时筒形件内外表面应力应变差最大。
In order to obtain a uniform deformation of the cylindrical pieces, proposed by finite element numerical simulation of the wrong Spinning, Isometric Spinning and wheel spinning three kinds of strong spinning process analysis, introduced three kinds of strong spinning Process method and its principle, and developed a corresponding forming process. Taking 20 steel cylinder as the research object, three different kinds of powerful spinning process were simulated by MSC.MARC finite element software. The results show that there is a certain stress and strain difference on the inner and outer surfaces of the workpiece after spinning. The stress and strain difference between the inner and outer surfaces of the cylindrical member obtained by the spinning is far less than that of the offset and equidistant spinning, The maximum difference of stress and strain on the inner and outer surfaces of the cylindrical part during press-forming is obtained.