She stared bitterly Mu snow mark, rushing breath, his face covered with white gauze to be blown from the corner of the brush, machete on his right hand bleeding, has had a more significant gap.
2
在工作过程中,冲头与凹模切口的半径定位,确保形成所需的圆形,而不至于在圆边产生“缺口”。
The radius of the punch and die cutting edges is laid out to produce the desired circular shape without nicking into the circle as the work proceeds.
3
本发明涉及一种适用于汽车顶篷前沿翻边后孔位自动冲切工艺的汽车顶篷前沿缺口冲切机构。
The invention relates to a car roof front edge aperture punching mechanism, which adopts an automatic punching technique to cut rear apertures at the front turned-over edge of a car roof.