IT1309043B1 - Procedimento e dispositivo per il rilevamento degli strappi inoperazioni di imbutitura. - Google Patents

Procedimento e dispositivo per il rilevamento degli strappi inoperazioni di imbutitura.

Info

Publication number
IT1309043B1
IT1309043B1 IT1999RM000524A ITRM990524A IT1309043B1 IT 1309043 B1 IT1309043 B1 IT 1309043B1 IT 1999RM000524 A IT1999RM000524 A IT 1999RM000524A IT RM990524 A ITRM990524 A IT RM990524A IT 1309043 B1 IT1309043 B1 IT 1309043B1
Authority
IT
Italy
Prior art keywords
tears
procedure
detection
drawing operations
operations
Prior art date
Application number
IT1999RM000524A
Other languages
English (en)
Italian (it)
Inventor
Norbert Bergs
Stefan Klatzer
Dieter Barschdorff
Hagen Haupt
Original Assignee
Benteler Werke Ag
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 Werke Ag filed Critical Benteler Werke Ag
Publication of ITRM990524A0 publication Critical patent/ITRM990524A0/it
Publication of ITRM990524A1 publication Critical patent/ITRM990524A1/it
Application granted granted Critical
Publication of IT1309043B1 publication Critical patent/IT1309043B1/it

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)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Golf Clubs (AREA)
  • Pens And Brushes (AREA)
IT1999RM000524A 1998-08-18 1999-08-13 Procedimento e dispositivo per il rilevamento degli strappi inoperazioni di imbutitura. IT1309043B1 (it)

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 (3)

Publication Number Publication Date
ITRM990524A0 ITRM990524A0 (it) 1999-08-13
ITRM990524A1 ITRM990524A1 (it) 2001-02-13
IT1309043B1 true IT1309043B1 (it) 2002-01-16

Family

ID=7877868

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1999RM000524A IT1309043B1 (it) 1998-08-18 1999-08-13 Procedimento e dispositivo per il rilevamento degli strappi inoperazioni di imbutitura.

Country Status (6)

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

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10343001A1 (de) * 2003-09-17 2005-04-14 Bayerische Motoren Werke Ag Werkzeug zum Umformen von Blechen oder Kunststofffolien mit integriertem Rißalarm
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
DE102004031222B3 (de) * 2004-06-28 2005-08-11 Benteler Automobiltechnik Gmbh Strukturbauteil für ein Kraftfahrzeug
DE102004031184B3 (de) * 2004-06-28 2005-10-06 Benteler Automobiltechnik Gmbh Karosseriekomponente
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
GB2340604B (en) 2002-07-17
GB2340604A (en) 2000-02-23
CZ9902906A3 (cs) 2002-01-16
FR2782464B1 (fr) 2002-05-03
FR2782464A1 (fr) 2000-02-25
DE19837369A1 (de) 2000-03-02
GB2340604A8 (en) 2000-03-01
ITRM990524A1 (it) 2001-02-13
ES2159476B1 (es) 2002-04-01
GB9918170D0 (en) 1999-10-06
ES2159476A1 (es) 2001-10-01
ITRM990524A0 (it) 1999-08-13

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