摘要：

The use of lasers for joining plastics is growingSeveral different approaches are being developed for laser welding of plasticsThe main principle now used to laser-weld plastics is known as "transmission welding." Transmission welding has demonstrated that precise, controllable heating and melting of low melting point thermoplastics can be produced at the interface between a transmissive and an absorptive plastic[1-8] In the present research, an experimental investigation into laser welding of polycarbonate(PC) has been carried outThe force at break of the lap welds was assessed on the Universal testing machine, weld fracture surfaces and weld cross-sections were also analyzed under microscope using reflected polarized light to qualitatively assess the weld quality.

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