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The present research investigates Through Transmission Laser Welding (TTLW) of two transparent plastics, Polycarbonate and Acrylic, forming a lap joint. A 12 W Nd: YVO4 laser with 1064 nm wavelength has been used for the welding. The effect of welding parameters such as scanning speed, laser power, and laser frequency is studied. The weld quality has been assessed by measuring the depth of penetrations of the weld joints. A quadratic model has been developed using Response Surface Methodology (RSM) to correlate the welding parameters with the responses. Analysis of Variance (ANOVA) is utilized to determine the significant parameter/s on the responses. The developed model has been used to optimize the ideal welding conditions to achieve an improved depth of penetration.

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Laser Welding of Two Transparent Plastics Without Any Filler Materials

  • 会议论文

  • 发表日期：

    2026年

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  • Nitesh Kumar,
  • Nikhil Kumar,
  • Abhishek Mandal,
  • Rajat Shubra Sen

摘要

The present research investigates Through Transmission Laser Welding (TTLW) of two transparent plastics, Polycarbonate and Acrylic, forming a lap joint. A 12 W Nd: YVO4 laser with 1064 nm wavelength has been used for the welding. The effect of welding parameters such as scanning speed, laser power, and laser frequency is studied. The weld quality has been assessed by measuring the depth of penetrations of the weld joints. A quadratic model has been developed using Response Surface Methodology (RSM) to correlate the welding parameters with the responses. Analysis of Variance (ANOVA) is utilized to determine the significant parameter/s on the responses. The developed model has been used to optimize the ideal welding conditions to achieve an improved depth of penetration.