产品介绍：功能与250型类同：变频调速、行程可调、接触加热、正压成形、胶囊调头、图文对版、气垫热封、上下网纹。
Same function as DPP-250: frequency control, adjustable stroke, touch heating, positive forming, capsule orientating, image and character register, air cushion heating-seal and chequered plates.
该弯曲模采用浮动模块和复合运动的滑板，使环形零件在压力机一次行程中成形，工作效率高。
The vertically float die block and slide plate of combination movement have been adopted in the die to form a ring part on a single stroke of the press with high productivity.
成形载荷随着温度的升高而降低，且呈现出周期性锯齿状载荷-行程曲线。
As the temperature rises, forming load decreases, and the curves of load-stroke shows serrated periodicity rule.
通过圆函数变形模型，推导出两种典型零件成形中压头压入行程与板料最大变形量的函数关系。
The relationship between heads relative displacement and sheets maximum deformation is deduced by circular function forming model.
用三维有限元数值模拟软件DEFORM-3DTM进行了数值模拟研究，得到了锻造载荷-行程曲线以及整个成形过程的应力和应变分布等，并与传统的均匀加放余量法进行了比较。
At the same time, 3D-FEM simulation of the whole process was performed using DEFORM-3DTM software. And the load-stroke curve, effective stress and strain distribution, and so on were obtained.
用三维有限元数值模拟软件DEFORM-3DTM进行了数值模拟研究，得到了锻造载荷-行程曲线以及整个成形过程的应力和应变分布等，并与传统的均匀加放余量法进行了比较。
At the same time, 3D-FEM simulation of the whole process was performed using DEFORM-3DTM software. And the load-stroke curve, effective stress and strain distribution, and so on were obtained.
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