HDPE激光透射焊接工艺的研究  

Research on Laser Transmission Welding HDPE

作　　者：刘会霞[1] 张惠中[1] 丁国民[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：《材料工程》2008年第11期13-18,共6页Journal of Materials Engineering

摘　　要：利用正交试验方法,研究HDPE的激光透射焊接工艺参数对于焊接质量的影响。对焊接样品进行拉伸测试和切片实验,分析各焊接因素对剪切强度和焊缝宽度的影响。结果表明:各焊接因素对焊接强度的影响顺序为:焊接速度→激光器功率→冷却时间→光斑直径→激光器的频率→夹具的夹紧力,并发现激光能量密度过高会导致样品表面焦化形成黑色焊缝,焊缝不均匀则产生伪断裂现象。用极差法确定HDPE最佳焊接工艺参数。The influence of laser transmission welding parameters for HDPE on welding quality was investigated by method of orthogonal design. Tensile and section tests were conducted for experimental samples, and the influence of welding factors on shear strength and welding seam size was analyzed, which indicated subsequence according to influence for HDPE was welding velocity → laser power → cooling time → beam diameter on the material → laser frequency → fixture pressure, and high laser power density can result in coking on samples＇ faces and fake fracture appeared when welding seam was not even. The optimized welding parameters were determined using range method.

关 键 词：激光 塑料焊接 工艺 HDPE 焊缝 

分 类 号：TG156.99[金属学及工艺—热处理]