Device for controlling the squeeze time in an electric resistance welding unit

To shorten the squeeze time in electric resistance welding units, the solid-borne sound occurring when the electrodes (5, 6) are placed onto the workpiece (4) is detected by an acoustic sensor (10) and is utilised as a criterion for the presence of an adequate welding pressure (P).

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Bibliographische Detailangaben
1. Verfasser:	WAECHTER, HERBERT, -(GRAD.), 8521 UTTENREUTH, DE
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	To shorten the squeeze time in electric resistance welding units, the solid-borne sound occurring when the electrodes (5, 6) are placed onto the workpiece (4) is detected by an acoustic sensor (10) and is utilised as a criterion for the presence of an adequate welding pressure (P).