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为了焊接紧密接合不锈钢空间曲面零件,使用机器人与Nd:YAG激光焊接设备组合系统。文章讨论了工艺因素对焊接效果的影响,包括零件是否紧密结合、程序编写、轨迹规划和激光焊接参数。通过激光切割零件提高接合紧密度;选择转弯区fine尺寸控制激光的实时关断;将焊接面分为两个半椭圆,配合机器人手臂的外旋转轴,完成一次焊接;在激光脉冲峰值功率2.5kW、脉冲宽度3ms、脉冲频率33Hz,单脉冲能量7.5J,机器人手臂行走速度0.25m/s的工艺参数下能获得良好的焊接效果。实验表明,Nd:YAG激光配合高自由度机器人手臂,能够实现空间曲面的高质量焊接。
To weld the stainless steel space-curved parts closely, a robotic system with Nd: YAG laser welding equipment was used. The article discusses the effect of process factors on the weld effect, including the tight fit of the part, programming, trajectory planning, and laser welding parameters. Laser cutting parts to improve the bonding tightness; Select turning zone fine size control laser real-time turn off; The welding surface is divided into two semi-elliptical, with the robot arm outer rotation axis, to complete a welding; Laser pulse peak power 2.5kW , Pulse width 3 ms, pulse frequency 33 Hz, single pulse energy 7.5 J, robot arm walking speed 0.25 m / s process parameters to obtain a good welding effect. Experiments show that, Nd: YAG laser with high degree of freedom robot arm, to achieve high-quality space surface welding.