外缘外曲翻边毛坯尺寸计算方法  

The Calculation Methods of Blank Dimension in the Convex Curvature Flanging Forming

作　　者：刘志云[1] 何成宏[1] 杨国泰[1] 黄菊花[1] 

机构地区：[1]南昌大学,江西南昌330029

出　　处：《锻压装备与制造技术》2003年第6期28-31,共4页China Metalforming Equipment & Manufacturing Technology

基　　金：江西省主要学科学术和技术带头人科研项目([2001]188)

摘　　要：通过对外缘外曲翻边应力应变状态的分析,提出了预测变形区的变形和对毛坯尺寸进行修正的方法,从而提高翻边成形精度。The stress and strain distributions of outward fringe's convex curvature flanging operations in sheet-metal forming has been analyzed,An approximate mathematical models to predict the blank shape has been estab-lished,also an improved calculation model for the original-sheet dimension of the flanged part is given out.Thus a more precision's tolerance could be achieved in the flanging operation.

关 键 词：机械制造 外曲翻边 毛坯尺寸 应力 应变 变形预测 

分 类 号：TG386[金属学及工艺—金属压力加工]