Prediction And Measurement Of Weld Dilution In Robotic Co2 Arc Welding
Weld dilution is an important feature of weld bead geometry that determines the mechanical and chemical properties of a welded joint. For robotic CO2 arc welding, several welding process parameters are reported to be controlling the dilution. This paper investigates the relationship between four of...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | en |
| Published: |
International Digital Organization for Scientific Information
2013
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| Online Access: | http://eprints.utem.edu.my/id/eprint/6638/1/Prediction_and_measurement_of_weld_dilution_in_robotic_CO2_arc_welding.pdf http://eprints.utem.edu.my/id/eprint/6638/ http://www.idosi.org/wasj/wasj.htm |
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| Summary: | Weld dilution is an important feature of weld bead geometry that determines the mechanical and chemical properties of a welded joint. For robotic CO2 arc welding, several welding process parameters are reported to be controlling the dilution. This paper investigates the relationship between four of these process parameters and dilution by depositing ‘bead on plate’ robotic CO2 arc welds over mild steel plates. Two level four factor full factorial design method was used for conducting the experimental runs and linear regression models were developed accordingly. The adequacy of the models were tested by applying students ‘t’ test and the predicted values from the models were plotted against the observed values through scatter diagram. The results showed that not only the proposed two level full factorial empirical models could predict the weld dilution with reasonable accuracy and ensure uniform weld quality, but also found to be a very simple and effective tool for quantifying the main and interaction effects of welding parameters on dilution. |
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