Abstract

A number of polymeric materials are translucent for infrared radiation. The use of low-power infrared lasers makes it possible to weld polymer sheets due to the penetration of radiation into the material depth. The possibilities of transmission welding of polybutene sheets, as well as several layers of polyethylene film are investigated. Epilog Fiber Mark 20 installation equipped with 20-W fiber infrared laser with 1.062 μm radiation wavelength is used. According to the investigation results, the maximum penetration depth of polybutene sheets at thea given radiation power is determined. The ability of welding up to eight layers of colored polyethylene film of PVD-108 and PVD-158 grade is shown.

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