TY - GEN
T1 - Response surface analysis of statistical features of voltage and current in a GMAW powersource on welding v-groove joints
AU - Thomasthekkuden, Dinu
AU - Mourad, Abdel Hamid I.
AU - Sherif, Muhammad M.
N1 - Funding Information:
We would like to acknowledge the fund provided by the United Arab Emirates University through the grant number 31R105-Research center.
Publisher Copyright:
© 2020 IEEE.
PY - 2020/2
Y1 - 2020/2
N2 - Past studies have suggested that welding current and voltage are signature variables that have potential information on welding quality and can be used for real-time monitoring while welding. This work explores the interaction between gas metal arc welding parameters such as stick out distance, gas flow rate and transverse speed to the mean and standard deviation of welding voltage and current. SA 516 gr.70 boiler plates with v-grooves were welded using KUKA KR robot and Fronius TPS 5000 power source. Data acquisition system with a sampling rate of 8 kHz was used to acquire current and voltage data during welding. Experimental tests were organized using central composite design. Mean and standard deviation of voltage and current are analyzed using response surface analysis. The measured voltage was confirmed previously to be an effective parameter for detecting porosity using control chart and probability density distribution. Therefore, in this research, the effects and interactions of welding parameters are statistically analyzed. Stick out distance is concluded to be the most effective factor on to the responses being investigated. A change in the gas flow rate can affect the voltage significantly but will not alter the welding current. In addition, mathematical models are developed to forecast mean and normal voltage and current deviations in real-time.
AB - Past studies have suggested that welding current and voltage are signature variables that have potential information on welding quality and can be used for real-time monitoring while welding. This work explores the interaction between gas metal arc welding parameters such as stick out distance, gas flow rate and transverse speed to the mean and standard deviation of welding voltage and current. SA 516 gr.70 boiler plates with v-grooves were welded using KUKA KR robot and Fronius TPS 5000 power source. Data acquisition system with a sampling rate of 8 kHz was used to acquire current and voltage data during welding. Experimental tests were organized using central composite design. Mean and standard deviation of voltage and current are analyzed using response surface analysis. The measured voltage was confirmed previously to be an effective parameter for detecting porosity using control chart and probability density distribution. Therefore, in this research, the effects and interactions of welding parameters are statistically analyzed. Stick out distance is concluded to be the most effective factor on to the responses being investigated. A change in the gas flow rate can affect the voltage significantly but will not alter the welding current. In addition, mathematical models are developed to forecast mean and normal voltage and current deviations in real-time.
KW - Central composite design
KW - Gas metal arc welding
KW - Response surface analysis
KW - Welding current
KW - Welding voltage
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U2 - 10.1109/ASET48392.2020.9118210
DO - 10.1109/ASET48392.2020.9118210
M3 - Conference contribution
AN - SCOPUS:85087460966
T3 - 2020 Advances in Science and Engineering Technology International Conferences, ASET 2020
BT - 2020 Advances in Science and Engineering Technology International Conferences, ASET 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 Advances in Science and Engineering Technology International Conferences, ASET 2020
Y2 - 4 February 2020 through 9 April 2020
ER -