【摘要】 通过介绍2个拉深零件成形时,从最初采用无排气孔凸模,零件不能成形,到在凸模上开排气孔后,制成零件的试验过程,说明拉深凸模上排气孔对零件成形的影响。提示在设计拉深凸模时一定要注意开排气孔。更多还原

【Abstract】 The experimental processes of shaping two drawing parts were introduced.By using the terrace die without air vent,the part could not be shaped;while by using terrace die with an air vent,the part was shaped successfully.The experiment result shows that air vent in terrace die has important effects on the part-shaping process.It was suggested that air vent is necessary in the design of drawing terrace die.更多还原