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热塑性塑料的激光透射焊接以其优良的焊接质量、易于控制等诸多优点成为人们研究的热点。但是国内对于该课题的研究还非常少,无论是理论的研究,还是产业化方面都无法与国外相比。因此,开展塑料激光透射焊接研究有着十分重要的意义。本文设计并确定了激光透射焊接的实验方案,包括选择激光器、焊接设备、焊接材料、焊接方法,通过微观金相试验研究了焊接因素对焊接质量的影响。结果表明:对于热塑性材料激光透射焊接,在有夹具夹持的条件下,可以用能量密度进行定性判定。
Thermoplastic laser transmission welding with its excellent welding quality, easy to control and many other advantages become the focus of research. However, the domestic research on the subject is still very small, both in theory and industrialization can not be compared with foreign countries. Therefore, to carry out plastic laser transmission welding research has very important significance. In this paper, the experimental scheme of laser transmission welding is designed and determined, including the choice of laser, welding equipment, welding materials, welding methods, and the influence of welding factors on the welding quality. The results show that for laser welding of thermoplastic materials, the energy density can be qualitatively determined under the condition of fixture clamping.