Experimental study about 3-D laser carving of Al2O3 ceramic
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摘要: 基于激光三维雕刻对单层雕刻深度的工艺需求,采用不同雕刻工艺参数对Al2O3陶瓷进行雕刻实验。详细分析了工艺参数对单层雕刻深度、雕刻质量的影响以及激光雕刻陶瓷的机理,并建立起激光雕刻深度的数学模型。当激光输出功率为12.2A、重复频率为2kHz、激光扫描速度为25mm/s时,陶瓷试样的单层雕刻深度最接近0.1mm,同时获得较高的雕刻质量。利用实验中获得的参数数据进行了三维实体的雕刻并给出了应用实例。结果表明,分层成形原理可以应用于激光雕刻领域,三维雕刻系统能够在陶瓷表面直接加工真正的三维图形。Abstract: In order to the accurate single-layer depth to meet the technologic requirement of 3-D laser carving,experimental study of laser carving was carried out on the surface of Al2O3 ceramic with different laser processing parameters.The effects of parameters on single-layer depth,quality and the mechanisms of laser carving were described.The mathematical model of laser carving depth was established.Through experiments,it was found that the single-layer depth was nearly 0.1mm with a tolerance of less than three-thousandths when the laser power was 12.2A,the scanning speed was 25mm per second and the repeating frequency of laser pulse was 2kHz.At last,a 3-D solid was successfully carved on the surface of ceramic sample based on the experimental results.It was shown from the results that the layered-forming principle could be applied in the field of laser carving and the 3-D laser carving system could directly carve the real 3-D graphics on the surface of ceramic.
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Keywords:
- laser technique /
- 3-D laser carving /
- layered shaping /
- Al2O3 ceramic /
- carving depth
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