基于中心复合设计法的激光透射连接FRPA材料实验研究  

Application of a Central Composite Design for Experimental Research on Laser Transmission Joining Process of FRPA

作　　者：蒋涛[1] 刘会霞[1] 李品[1] 严长[1] 薛国春[1] 高阳阳[1] 王霄[1] 

机构地区：[1]江苏大学机械工程学院,江苏镇江212013

出　　处：《光学学报》2013年第F06期216-221,共6页Acta Optica Sinica

基　　金：国家自然科学基金（51275219）、江苏省光子制造科学与技术重点实验室开放基金（GZ201105）和江苏高校优势学科建设工程资助课题.

摘　　要：激光透射连接纤维增强尼龙（FRPA）材料在工业应用中具有良好的应用前景。基于旋转中心复合设计法的实验规划，采用半导体连续激光器对激光透射连接FRPA材料进行了实验，并对连接剪切强度和焊缝宽度进行测量。焊缝横截面显微观测表明，试样连接区域结合良好。通过实验数据处理，得到并分析了工艺参数对连接质量的影响。运用响应曲面法建立了工艺参数与连接剪切强度和焊缝宽度的关系模型。结果表明，激光透射连接工艺参数对连接质量具有决定性的影响；响应曲面所建立数学模型的预测结果与实验的实际结果取得了较好的一致性。这可为激光透射连接选取适当的工艺参数以提高加工效率提供有效的指导。Laser transmission joining of fiber reinforced polyamides （FRPA） has potential application in industry. Based on a central composite rotatable design, comprehensive experiments of laser transmission joining of FRPA are carried out by a diode continuous laser source. The microscopic cross-section observation shows that the joining area is good. The effect of process parameters on the joint quality is analyzed by processing of the experimental data. Finally, mathematical models between the process parameters, the lap-shear strength and the joint width are determined by response surface methodology. The results show that the process parameters of laser transmission welding play a significant role in determining the joint quality; and the predicted data of the models are in good agreement with the experimental results. So this study could provide an effective instruction to choose the reasonable process parameters for enhancing the joining efficiency.

关 键 词：激光技术 激光透射连接技术 纤维增强尼龙 中心复合设计 工艺参数 连接质量 

分 类 号：TG456.7[金属学及工艺—焊接]