【摘要】 本文推导出了符合金属流动规律的芯棒沟槽曲线理论计算公式 ,并分析了芯棒与外模的轴向相对位置对内螺旋凸筋管拉拔成型的影响 ,为芯棒设计提供了理论依据更多还原

【Abstract】 According to flow of metal,this paper analyzes theoretically the curve ditch on plug and theoretic formulation is put forward.This paper analyzes the effect of the plug relative axial position of drawing die on internal spiralribbed tube colddrawing.This paper aims to provide rilibla bases for plug design.更多还原