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首页> 外文会议>Conference on Photon Processing in Microelectronics and Photonics Jan 21-24, 2002 San Jose, USA >Study and process control in laser conduction welding for millisecond pulse duration range
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Study and process control in laser conduction welding for millisecond pulse duration range

机译：毫秒脉冲持续时间范围内激光传导焊接的研究和过程控制

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摘要

A system has been built for the fast control of the laser welding process in conduction regime. Based on a traditional Proportional Integral Derivative (PID) analysis, the system can regulate millisecond laser pulse (its response time is 90 microseconds). Besides, the interaction in this regime has been monitored with different diagnostics. Visible signal above target, IR signal from surface and visualization from CCD camera have been correlated as function of laser power density to distinguish the different phases of interaction (pure conduction, vaporization and/or plasma). With this experimental set up, the detector used for control process could be calibrated. The integration of the system is shown for watch parts assembly.
机译：已经建立了用于在传导状态下快速控制激光焊接过程的系统。该系统基于传统的比例积分微分（PID）分析，可以调节毫秒级的激光脉冲（其响应时间为90微秒）。此外，已经用不同的诊断方法监测了这种情况下的相互作用。高于目标的可见信号，来自表面的IR信号和来自CCD摄像机的可视化已与激光功率密度相关联，以区分相互作用的不同阶段（纯传导，汽化和/或等离子体）。通过此实验设置，可以对用于控制过程的检测器进行校准。显示了系统的集成，用于手表零件的组装。

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