Weld Pool Oscillation for Penetration Sensing and Control |
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Page 43
Antonius Johannes Rosa Aendenroomer. oscillation modes , especially for small pool diameter . In other words , it is ... 3 oscillation and reduce mode 2 oscillation . Fig . 4.4 Fig . 4.5 relative error ( % ) 15 10 5 mode 2 mode 1 0 0 5 10 ...
Antonius Johannes Rosa Aendenroomer. oscillation modes , especially for small pool diameter . In other words , it is ... 3 oscillation and reduce mode 2 oscillation . Fig . 4.4 Fig . 4.5 relative error ( % ) 15 10 5 mode 2 mode 1 0 0 5 10 ...
Page 67
... mode 1 oscillations ) . Also the scatter in frequency in the case of ... 3 oscillation the amplitude difference is less pro- nounced . These ... frequency ( Hz ) 150 67 Weld pool oscillation during pulsed GTA welding.
... mode 1 oscillations ) . Also the scatter in frequency in the case of ... 3 oscillation the amplitude difference is less pro- nounced . These ... frequency ( Hz ) 150 67 Weld pool oscillation during pulsed GTA welding.
Page 76
... oscillation frequency between two different positions ) will therefore be less than 2 % ( for the same pool diameter ) and , hence , will be too small to be detected . Figure 4.4 does not give a relative error for the mode 3 oscillation ...
... oscillation frequency between two different positions ) will therefore be less than 2 % ( for the same pool diameter ) and , hence , will be too small to be detected . Figure 4.4 does not give a relative error for the mode 3 oscillation ...
Common terms and phrases
500 frequency Hz AISI arc current arc length arc welding backface base current chapter cold wire supply convection correct penetration correction current step current pulses doorlassing equation Fast Fourier Transform feedback control feedback system flow frequency analysis frequency distribution frequency spectrum full penetration function GTAW heat input in-process intensity a.u. IPPC IPPC system l/min liquid metal mm/s mode 3 oscillation orbital tube welding orbital welding oscillation behavior oscillation frequency oscillation mode partial penetration penetration control penetration sensing penetration to overpenetration pool diameter pulse current pulsed GTA welding pulsed welding purging gas rotation sample seam sensing and control sensor shielding gas situation spot welding sum frequency surface tension temperature TIG welding torch total cycle travel speed tungsten tuning factor voltage and arc wall thickness wave weld bead weld penetration weld pool oscillation welding conditions welding current Welding Journal welding position welding process welding with cold workpiece