13 pages matching frequency spectrum in this book
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Heat flow during welding
8 other sections not shown
4G position AISI arc current arc length arc welding base current chapter cold wire supply correct penetration correction current step current pulses decrease droplet transfer equation Fast Fourier Transform feedback control feedback system frequency analysis frequency distribution frequency spectrum full penetration function GTAW heat input in-process IPPC IPPC system liquid metal mm/s mode 3 oscillation orbital tube welding orbital welding oscillation behavior oscillation frequency oscillation mode partial penetration penetrated weld pool penetration control penetration mode penetration sensing plasma pool diameter positional welding pulse current pulse frequency pulse parameters pulsed GTA welding rotation seam sensing and control sensor shielding gas situation spot welding steel sum frequency surface tension temperature TIG welding torch total cycle travel speed tungsten tuning factor ultrasonic underpenetration voltage and arc wall thickness weld bead weld penetration weld pool oscillation welding conditions Welding Journal welding position welding process welding run welding with cold workpiece