模具将板材冲压在一起，此时加压注入环氧树脂。
The tool presses the sheets together and only then injects epoxy resin into them under pressure.
冲压是利用冲压模在压力机上对板料或热料施加压力使其产生塑性变形或分离，以获得具有一定形状和尺寸的零件压力加工方法。
Punching is a kind of pressure process method that punching dies are used in press sheet to put pressure on the plastic deformation or separation, for a certain shape and size of components.
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