铝合金点焊预压接触分析
Analysis on Pre-press Contacts of Resistance Spot Welding of Aluminum Alloy
吕会敏, 胡 芸, 王志刚
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作者单位:邢台职业技术学院 机电系,河北 邢台 054035
中文关键字:点焊; 数值模拟; 铝合金
英文关键字: spot welding; numerical simulation; aluminum alloy
中文摘要:利用有限元模拟分析,研究了铝合金点焊在采用固定的预应力和变化预应力时,工件与工件间的应力分布状态。结果表明,工件间接触区域的半径比电极端面半经大;随着预应力的增大,工件间出现应力峰值的位置向对称轴方向移动。
英文摘要:The stress distribution in aluminium alloy workpieces after spot welding under fixed prestressing force and variational prestressing force was investigated by finite element simulation. The results show that the radius of contacted distribution area is larger than electrode radius. The position of stress peak value in workpieces removes to symmertry axis when the pre-stress increases.