1·Welding porosity is the main defect during laser welding.
焊接气孔是粉末冶金材料激光焊接的主要缺陷。
2·And the keyhole is characteristics of deep penetration laser welding.
小孔效应是深熔焊接中的特征现象。
3·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。
4·Laser welding can help us to realize the welding of castings, such as equipment.
激光焊接能帮助我们实现设备等铸造件的焊接。
5·Gaseous helium is used as an inert shielding gas in metal arc and laser welding.
在金属电弧和激光焊接中气态氦用作惰性屏蔽气体。
6·Application of laser welding technology in the production of engineering vehicle.
激光焊接技术在工程车辆生产中的应用。
7·Thermal focusing is an important factor to influence the quality of laser welding.
热透镜效应是影响激光焊接质量的重要因素之一。
8·A laser welding quality monitoring method is proposed, based on support vector machine.
提出了一种基于支持向量机的激光焊接质量监测方法。
9·The superiority of the connection of nut with protection by laser welding is expounded.
论述了激光焊接连接防护罩和螺母的优越性。
10·In this paper, the formability of cold rolled steels after laser welding were analyzed.
在本研究中，对汽车用冷轧钢板在激光焊接后成形性能进行了细致的分析。