A Comprehensive Prediction Model of Bead Geometry in Wire and Arc Additive Manufacturing

To explore the effect of process parameters on the bead geometry in cold metal transfer wire arc additive manufacturing(CMT-WAAW), the response surface optimization method was adopted in this paper. According to previous experiments, some process parameters were selected as independent variables. Th...

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Bibliographic Details
Published in:Journal of physics. Conference series 2020-10, Vol.1624 (2), p.22018
Main Authors: Wang, Changxing, Bai, Hao, Ren, Chuanqi, Fang, Xuewei, Lu, Bingheng
Format: Article
Language:English
Subjects:
Additive manufacturing
Aluminium alloy
Area
Aspect ratio
Bead size prediction
CMT-WAAM
Dependent variables
Dilution
Independent variables
Manufacturing
Mathematical models
Optimization
Penetration
Physics
Prediction models
Process parameters
Response surface methodology
Response surface optimization
Substrates
Welding parameters
Wire
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Summary:To explore the effect of process parameters on the bead geometry in cold metal transfer wire arc additive manufacturing(CMT-WAAW), the response surface optimization method was adopted in this paper. According to previous experiments, some process parameters were selected as independent variables. They are wire feed speed(WFS), traveling speed(TS) and substrate temperature(ST). Some geometric parameters of the welding bead were selected as dependent variables. They are the track width (w), layer height (h), penetration (p), accumulated area (A2), penetration area (A1), aspect ratio (B) and dilution ratio (D). In the given parameter interval, the prediction model behaves good. The relative error of bead size between actual value and predicted value are all within 5%. And five sets of verification experiment were carried out to prove that the accuracy of the developed model.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1624/2/022018