The kinematically admissible velocity field for the indentation of semi infinite medium by a round flat punch has been established.
建立了圆冲头压入半无限体的运动许可速度场；
But do not use cold water spilled punch, don't put gas, it could lead to a flat tire on the early damage and the tires.
但切忌用冷水泼冲，更不要放气，否则会导致途中爆胎和轮胎的早期损坏。
In sheet metal, drawing is a process of forming flat sheet metal into hollow shapes by mean of a punch that causes the metal to flow into the die cavity.
在板金上，拉伸是一个通过冲床将平板金属冲入模腔拉成中空形状工件的工艺过程。
In sheet metal, drawing is a process of forming flat sheet metal into hollow shapes by mean of a punch that causes the metal to flow into the die cavity.
在板金上，拉伸是一个通过冲床将平板金属冲入模腔拉成中空形状工件的工艺过程。
应用推荐