The holes in welding area mainly cause the fatigued wire to break.
焊接造成的内部气孔使环形锯丝在该处产生疲劳断裂。
SEM showed no pores and other defects and some ductility at laser welding area.
断口扫描电镜观察显示断口有一定的塑性，未发现气孔和焊接缺陷。
Hardness value of welding area is higher than that of 316l and aluminum. It indicates that there are the compounds on the interface.
焊缝区的硬度值较基体316L板及铝板各自的硬度值高，表明界面有化合物存在。
Microstructure and properties of repaired welding area in large aluminum alloy ZL114A castings by MIG (Metal Inertia Gas) welding technology were studied.
研究了ZL114 A合金大型铸件熔化极气体保护焊(MIG)焊补区域的组织与性能。
So it enlarges the application area of rough set theory and provides a new method for modeling in welding area, and has a large potential of wide application.
该方法拓展了粗糙集理论的应用领域，并为焊接建模提供了一种新方法，具有较大的应用潜力。
Earth clamps, which are part of the ground cables, must be installed closely to the welding area and directly to the material to be welded to avoid stray currents.
接地钳，这是地面电缆的一部分，必须连接在适当的地方，直接连接在焊件上以避免杂散电流。
In case the welding machine cannot be placed close to the welding area, enough cable length for both, the welding cable as well as the earth clamp has to be provided.
如果焊机不能置于靠近焊接区，必须提供足够长度的焊接线以及接地夹。
The second kind of these techniques is the ultrasonic impact technique which was used in the welding process in order to reduce the residual tension stress in the welding area of the ship structure.
第二种是超声波冲击技术，用以减少船舶结构中的焊接区域出现的残余应力。
The second kind of these techniques is the ultrasonic impact technique which was used in the welding process in order to reduce the residual tension stress in the welding area of the ship structure.
第二种是超声波冲击技术，用以减少船舶结构中的焊接区域出现的残余应力。
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