【作者】 张守茁； 席镇； 魏盛春； 孟维；

【Author】 zhang shouzhuo xi zhen wei shengchun meng wei (College of Material science & Engineering,Inner Mongolia University of technology,Hohhot,010051)

【机构】 内蒙古工业大学材料学院；

【摘要】 金属塑性成形中的摩擦模型对于研究金属塑性成形中的摩擦非常重要,但是金属塑性成形中的摩擦发生在模具和板料之间,无法得知其摩擦模式,为此,利用声发射技术监测了不同金属之间的摩擦过程,研究结果是:钢与铝摩擦时声发射信号随着正压力增加而增加,45钢与45钢摩擦时声发射信号随着正压力增加而降低;说明钢与铝摩擦时,其摩擦模式是以犁沟为主,而钢与钢摩擦是以点焊或粘接为主。金属塑性成形中的摩擦模型和钢与铝摩擦相同或相似,应该是以犁沟为主。更多还原

【Abstract】 The friction model is very important for the study of friction in metal forming,but the friction occurs between the sheet metal and the die,no way of knowing the friction model.So acoustic emission technology was used to monitor the process of a different metal friction,the results showed:as the pressure increased,the AE signal increased generated by contacting aluminum with steel;as the pressure increased,the AE signal decreased generated by contacting steel with steel;In other words,the steel—aluminum Friction model is mainly furrows, and the steel—steel friction model is mainly adhesive or spot welding.friction model in metal forming resemble friction model rubbing steel with aluminum,so furrow be primary.更多还原