PROCEDE ET DISPOSITIF POUR L'IDENTIFICATION DE FISSURES LORS DU FORMAGE PAR EMBOUTISSAGE

An apparatus for crack detection in the shaping of metal workpieces (4) by deep drawing in a drawing press (1) by picking up the noises accompanying shaping using body sound sensors (7, 8). To this end, during the deep drawing process simultaneous and direct detection of the body sound is carried ou...

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Bibliographische Detailangaben
Hauptverfasser:	HAUPT HAGEN, BERGS NORBERT, KLATZER STEFAN, BARSCHDORFF DIETER
Format:	Patent
Sprache:	fre
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PHYSICS PUNCHING METAL TESTING TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	An apparatus for crack detection in the shaping of metal workpieces (4) by deep drawing in a drawing press (1) by picking up the noises accompanying shaping using body sound sensors (7, 8). To this end, during the deep drawing process simultaneous and direct detection of the body sound is carried out on the workpiece both in the shaping zone and outside the shaping zone. Signals with the same amplitude and frequency are determined as noise signals by comparison of the detected body sound signals and are filtered out. The body sound signals picked up in the shaping zone (VZ) are adjusted by removal of the noise signals and subjected to crack detection analysis.