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.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2008年第11期13-18,共6页
Journal of Materials Engineering
关键词
激光
塑料焊接
工艺
HDPE
焊缝
laser
plastics welding
technique
HDPE
welding seam
