Weld Pool Oscillation for Penetration Sensing and Control |
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Page 94
... droplets which fall into the pool in order to avoid the risk of freezing . Unfortunately , when welding in non - flat ... droplet strikes the pool , the oscillation frequency is expected to decrease . In view of this , droplet transfer ...
... droplets which fall into the pool in order to avoid the risk of freezing . Unfortunately , when welding in non - flat ... droplet strikes the pool , the oscillation frequency is expected to decrease . In view of this , droplet transfer ...
Page 100
... droplet transfer to the weld pool ( an effect which is enhanced by the V - shape of the groove ) . It should be noted that the effect of droplet impact as described in the foregoing refers specifically to mode 1 oscillation . The ...
... droplet transfer to the weld pool ( an effect which is enhanced by the V - shape of the groove ) . It should be noted that the effect of droplet impact as described in the foregoing refers specifically to mode 1 oscillation . The ...
Page 102
... droplet transfer on the oscillation behavior of the weld pool in the case of pulsed GTA welding with cold wire supply . The fact that droplet impact can generate oscillation under these conditions as indicated in Fig . 7.5 suggests that ...
... droplet transfer on the oscillation behavior of the weld pool in the case of pulsed GTA welding with cold wire supply . The fact that droplet impact can generate oscillation under these conditions as indicated in Fig . 7.5 suggests that ...
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