基于MOPA标识系统的高质量激光直接标识铝合金的工艺研究

Research on the Process of High-Quality Laser Direct Part Marking Aluminum Alloy Based on the MOPA Laser Marking System

激光直接零部件标识(Laser Direct Part Marking)技术是一种在工业环境中证实可行,可实现高度自动化且绿色环保的标识技术,已经成为工业产品追溯中产品标识的首选手段。本文基于控制灵活、激光参数调节范围更大的MOPA(MOPA,主控振荡器的功率放大器)激光标识设备,按照ISO/IEC TR 29158条码技术标准,开展激光加工参数(如激光峰值功率、激光单脉冲能量、激光功率、填充间隔、扫描速度等)对激光直接标识(Direct Marking,DM)码质量(如条码等级、对比度、打印伸缩等)影响的研究。通过优化激光加工参数,实现了在AL2024材料表面标识高质量DM码的激光标识工艺。

Laser Direct Part Marking(DPM)technology is a marking technology that has proved to be feasible in the industrial environment,and can be highly automated and environmentally friendly.It has become the preferred method for completing product marking in industrial product traceability.In this paper,MOPA laser marking system with flexible control and wide adjustment range of laser parameters is used for experiment.According to ISO/IEC TR 29158 bar code technology standards,the influence of laser processing parameters(such as laser peak power,laser pulse energy,laser power,filling,speed,etc.)on the quality(such as symbol level,contrast,print growth,etc.)of laser direct marking DM codes was studied.By optimizing the laser processing parameters,high-quality DM code on the surface of the AL2024 material is realized.