Application of Factorial Design for Gas Parameter Optimization in CO2 Laser Welding

Hui Gong, Birgitte Dragsted, Flemming Ove Olsen

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    The effect of different gas process parameters involved in CO2 laser welding has been studied by applying two-set of three-level complete factorial designs. In this work 5 gas parameters, gas type, gas flow rate, gas blowing angle, gas nozzle diameter, gas blowing point-offset, are optimized. The bead-on-plate welding specimens are evaluated by a number of quality char-acteristics, such as the penetration depth and the seam width. The significance of the gas pa-rameters and their interactions are based on the data found by the Analysis of Variance-ANOVA. This statistic methodology is proven to be a very useful tool for parameter optimi-zation in laser welding process. Keywords: CO2 laser welding, gas parameters, factorial design, Analysis of Variance.
    Original languageEnglish
    Title of host publicationNOLAMP 6
    Place of PublicationLuleå, Sweden
    PublisherLuleå University of Technology
    Publication date1997
    Publication statusPublished - 1997
    Event6th Nordic Laser Material Processing Conference - Luleå, Sweden
    Duration: 27 Aug 199729 Aug 1997
    Conference number: 6


    Conference6th Nordic Laser Material Processing Conference

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