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摘要：
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飞轮盘为大尺寸、变壁厚零件,采用先切割后焊接组装的加工方式,工序多,周期长,成本较高。采用冲锻成形新工艺成形该零件,并借助有限元模拟软件DEFORM-2D,对成形过程和模具关键尺寸进行了优化分析。为成形零件R5 mm内圆角,采用两步成形,即预成形时采用大半径圆角凸模拉深并利用镦粗凸模镦粗侧壁,终成形时将拉深凸模换为R5 mm圆角的凸模并将零件镦粗到要求尺寸。优化后的模拟结果显示成形良好,为实际生产提供了一定的参考依据。
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Flywheel panel is a part of large size and variable wall thickness.If the traditional process,such as cutting and weld-assembling is used,it demands more procedures,takes longer period and costs more.This research adopted a new stamping-forging process.The forming process and key mold dimensions were optimized utilizing DEFORM-2D.In order to shape the inner fillet of R5mm,a forming process with two-step was designed.A drawing-punch with bigger fillet drew the billet and an upsetting-punch compressed the wall first,and then the drawing-punch was replaced by another one which had a fillet of R5mm and the wall was compressed until reaching the size requirements.The optimized simulated results were very well,which could provide a certain reference evidence to the practical industrial production.
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基金项目：
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国家自然科学基金资助项目(50705034)
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作者简介：
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参考文献：
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