FR2782464B1 - Procede et dispositif pour l'identification de fissures lors du formage par emboutissage - Google Patents

Procede et dispositif pour l'identification de fissures lors du formage par emboutissage

Info

Publication number
FR2782464B1
FR2782464B1 FR9909944A FR9909944A FR2782464B1 FR 2782464 B1 FR2782464 B1 FR 2782464B1 FR 9909944 A FR9909944 A FR 9909944A FR 9909944 A FR9909944 A FR 9909944A FR 2782464 B1 FR2782464 B1 FR 2782464B1
Authority
FR
France
Prior art keywords
drawing forming
during drawing
cracks during
identifying cracks
identifying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR9909944A
Other languages
English (en)
Other versions
FR2782464A1 (fr
Inventor
Norbert Bergs
Stefan Klatzer
Dieter Barschdorff
Hagen Haupt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Benteler Deustchland GmbH
Original Assignee
Benteler Deustchland GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Benteler Deustchland GmbH filed Critical Benteler Deustchland GmbH
Publication of FR2782464A1 publication Critical patent/FR2782464A1/fr
Application granted granted Critical
Publication of FR2782464B1 publication Critical patent/FR2782464B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4409—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison
    • G01N29/4427—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison with stored values, e.g. threshold values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/015—Attenuation, scattering

Landscapes

  • Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Golf Clubs (AREA)
  • Pens And Brushes (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
FR9909944A 1998-08-18 1999-07-30 Procede et dispositif pour l'identification de fissures lors du formage par emboutissage Expired - Fee Related FR2782464B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19837369A DE19837369A1 (de) 1998-08-18 1998-08-18 Verfahren und Vorrichtung zur Rißerkennung bei der Tiefziehverformung

Publications (2)

Publication Number Publication Date
FR2782464A1 FR2782464A1 (fr) 2000-02-25
FR2782464B1 true FR2782464B1 (fr) 2002-05-03

Family

ID=7877868

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9909944A Expired - Fee Related FR2782464B1 (fr) 1998-08-18 1999-07-30 Procede et dispositif pour l'identification de fissures lors du formage par emboutissage

Country Status (6)

Country Link
CZ (1) CZ9902906A3 (fr)
DE (1) DE19837369A1 (fr)
ES (1) ES2159476B1 (fr)
FR (1) FR2782464B1 (fr)
GB (1) GB2340604B (fr)
IT (1) IT1309043B1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10343002A1 (de) * 2003-09-17 2005-04-14 Bayerische Motoren Werke Ag Werkzeug zum Umformen von Blechen oder Kunststofffolien mit Vorwarnung der Rißgefahr bei hoher Materialausdünnung
DE10343001A1 (de) * 2003-09-17 2005-04-14 Bayerische Motoren Werke Ag Werkzeug zum Umformen von Blechen oder Kunststofffolien mit integriertem Rißalarm
DE102004031184B3 (de) * 2004-06-28 2005-10-06 Benteler Automobiltechnik Gmbh Karosseriekomponente
DE102004031222B3 (de) * 2004-06-28 2005-08-11 Benteler Automobiltechnik Gmbh Strukturbauteil für ein Kraftfahrzeug
DE102007060278A1 (de) * 2007-12-12 2009-06-18 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Vorrichtung und Verfahren für die Qualitätsprüfung von Blechteilen
DE102012100096B4 (de) 2012-01-06 2016-10-27 Benteler Automobiltechnik Gmbh Umformwerkzeug mit akustischer Qualitätskontrolle
DE202012009675U1 (de) * 2012-10-10 2014-01-13 Ulrich Seuthe Vorrichtung zur Erkennung einer Rissbildung bei einem Bauteil infolge Induktionshärtens des Bauteils
RU2570592C1 (ru) * 2014-10-27 2015-12-10 Алексей Николаевич Кузьмин Способ регистрации и анализа сигналов акустической эмиссии
DE102016205157A1 (de) 2016-03-30 2017-10-05 Zf Friedrichshafen Ag Verfahren zur Rissbildungserkennung bei der Werkstückbearbeitung
DE102016205944A1 (de) 2016-04-08 2017-10-12 Zf Friedrichshafen Ag Verfahren und Vorrichtung zur Erkennung einer Anwesenheit eines Fremdkörpers
DE102017208909A1 (de) * 2017-05-26 2018-11-29 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Verfahren zum Bestimmen von Materialeigenschaften eines Werkstücks durch Audioanalyse einer Werkstückbearbeitung sowie Stanzmaschine und Computerprogrammprodukt
RU2709414C1 (ru) * 2019-06-04 2019-12-17 Алексей Николаевич Кузьмин Способ регистрации и анализа сигналов акустической эмиссии в системе диагностического мониторинга производственных объектов
CN114877982A (zh) * 2022-05-07 2022-08-09 华能平凉发电有限责任公司 一种音频信号采集设备

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023044A (en) * 1975-01-20 1977-05-10 Westinghouse Electric Corporation Automatic machine tool including a monitoring system
GB1545505A (en) * 1975-09-16 1979-05-10 Ca Minister Nat Defence Excitation and spectral calibration of acoustic emission systems
JPS569099A (en) * 1979-07-03 1981-01-29 Toyo Tokushu Kiki Kk Abnormality detecting method of automatic press
GB2074731B (en) * 1980-04-16 1984-04-18 Rolls Royce Machining monitor
DE3036951C2 (de) * 1980-09-30 1982-11-25 Kraftwerk Union AG, 4330 Mülheim Verfahren zur Schallemissionsprüfung von aus Stahl bestehenden Behältern oder Rohrleitungen, insbesondere für Kernreaktoranlagen
GB2100432B (en) * 1981-06-16 1985-08-21 Metal Box Co Ltd Identifying fractured containers
US4430896A (en) * 1982-03-24 1984-02-14 Toyota Jidosha Kogyo Kabushiki Kaisha Method and apparatus for detecting crack produced in workpiece in distortion removal processing
GB2137344A (en) * 1983-03-16 1984-10-03 Standard Telephones Cables Ltd Flaw protection in wire drawing
US4487068A (en) * 1983-06-09 1984-12-11 The United States Of America As Represented By The Secretary Of The Air Force Method and apparatus for detecting acoustic emissions from metal matrix wire
DE4242442C2 (de) * 1992-12-16 1996-09-05 Daimler Benz Ag Verfahren zum Einstellen der Klemmkraft des Niederhalters von Ziehpressen
JPH09145698A (ja) * 1995-11-20 1997-06-06 Hitachi Cable Ltd 金属棒材の超音波探傷装置

Also Published As

Publication number Publication date
CZ9902906A3 (cs) 2002-01-16
GB2340604A (en) 2000-02-23
IT1309043B1 (it) 2002-01-16
ITRM990524A1 (it) 2001-02-13
FR2782464A1 (fr) 2000-02-25
GB2340604A8 (en) 2000-03-01
DE19837369A1 (de) 2000-03-02
ES2159476A1 (es) 2001-10-01
GB9918170D0 (en) 1999-10-06
GB2340604B (en) 2002-07-17
ES2159476B1 (es) 2002-04-01
ITRM990524A0 (it) 1999-08-13

Similar Documents

Publication Publication Date Title
IL147013A0 (en) Method and device for identifying an object and determining its location
DE69509587D1 (de) Verfahren und Vorrichtung zum Feststellen eines Fahrzeugazimuths
FR2724026B1 (fr) Procede et dispositif pour l'identification de pannes dans un systeme complexe
DE69513068D1 (de) Verfahren und Vorrichtung zum Identifizieren eines Narkosemittelbehälters
DE69532916D1 (de) Verfahren und vorrichtung zur bilddarstellung
DE69506936D1 (de) Verfahren zur automatischen Verkehrszeichenerkennung und das Verfahren durchführende Vorrichtung
DE69916038D1 (de) Verfahren und vorrichtung zum kühlen eines transformators
DE69524347D1 (de) Vorrichtung und Verfahren zum Wegmessung
FR2747027B1 (fr) Procede de determination de la profondeur d'anesthesie et dispositif pour la mise en oeuvre de ce procede
FR2783926B1 (fr) Procede et dispositif pour la localisation d'un defaut d'isolement d'un cable
FR2782464B1 (fr) Procede et dispositif pour l'identification de fissures lors du formage par emboutissage
DE69528969D1 (de) Verfahren und vorrichtung zum stranggiessen
DE69717423D1 (de) Verfahren und vorrichtung zur detektion der vertikalen windänderung
FR2751077B1 (fr) Procede et dispositif pour tester des tournevis
GB2291203B (en) Method and apparatus for detecting and monitoring corrosion
DE69522327D1 (de) Verfahren und vorrichtung zur richtungsbestimmung
FR2752384B1 (fr) Dispositif et procede pour le grattage motorise de tickets de jeu
DE69515535D1 (de) Verfahren und Vorrichtung zum Bildvergleich
DE69620310D1 (de) Verfahren und vorrichtung zum lochen nahtloser rohre
FR2752935B1 (fr) Procede de mesure d'un volume conducteur et dispositif de mise en oeuvre de ce procede
IL137601A0 (en) Method and apparatus for detecting conception in animals
FR2754168B1 (fr) Procede d'acquisition d'empreintes digitales et dispositif de mise en oeuvre
FR2783388B1 (fr) Procede de compression d'images et dispositif pour la mise en oeuvre de ce procede
FR2772652B1 (fr) Procede et dispositif de formage de fils metalliques
FR2787519B1 (fr) Dispositif d'injection et procede de mise en oeuvre associe

Legal Events

Date Code Title Description
ST Notification of lapse