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Research on local upsetting finish forging process of valve blank
Author(s): 
Pages: 1-4
Year: Issue:  5
Journal: Forging & Stamping Technology

Keyword:  气门毛坯楔横轧终锻数值模拟;
Abstract: 根据气门毛坯楔横轧-模锻成形工艺中楔横轧和终锻工艺特点及要求,设计了不同初始直径的预成形坯料,运用DEFORM-2D软件对其终锻时的局部镦挤成形过程进行数值模拟,获得了终锻成形中头部金属将同时产生径向和轴向流动、轴向流动导致杆部增长以及工件内变形分布等规律,根据杆部增长量与预成形毛坯形状尺寸及成形条件的关系,确立了预成形毛坯的设计原则,采用终成形实验验证了预成形毛坯设计的正确性.实验表明,楔横轧-...
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