GB9918170D0 - Method and apparatus for crack detection in shaping by deep drawing - Google Patents

Method and apparatus for crack detection in shaping by deep drawing

Info

Publication number
GB9918170D0
GB9918170D0 GBGB9918170.3A GB9918170A GB9918170D0 GB 9918170 D0 GB9918170 D0 GB 9918170D0 GB 9918170 A GB9918170 A GB 9918170A GB 9918170 D0 GB9918170 D0 GB 9918170D0
Authority
GB
United Kingdom
Prior art keywords
shaping
deep drawing
crack detection
crack
detection
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.)
Granted
Application number
GBGB9918170.3A
Other versions
GB2340604A (en
GB2340604B (en
GB2340604A8 (en
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 GB9918170D0 publication Critical patent/GB9918170D0/en
Publication of GB2340604A publication Critical patent/GB2340604A/en
Publication of GB2340604A8 publication Critical patent/GB2340604A8/en
Application granted granted Critical
Publication of GB2340604B publication Critical patent/GB2340604B/en
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)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Golf Clubs (AREA)
  • Pens And Brushes (AREA)
GB9918170A 1998-08-18 1999-08-02 Method and apparatus for crack detection in shaping by deep drawing Expired - Fee Related GB2340604B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19837369A DE19837369A1 (en) 1998-08-18 1998-08-18 Acoustic crack detection during deep drawing using probes to pick up signals from different parts of the workpiece

Publications (4)

Publication Number Publication Date
GB9918170D0 true GB9918170D0 (en) 1999-10-06
GB2340604A GB2340604A (en) 2000-02-23
GB2340604A8 GB2340604A8 (en) 2000-03-01
GB2340604B GB2340604B (en) 2002-07-17

Family

ID=7877868

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9918170A Expired - Fee Related GB2340604B (en) 1998-08-18 1999-08-02 Method and apparatus for crack detection in shaping by deep drawing

Country Status (6)

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

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10343002A1 (en) * 2003-09-17 2005-04-14 Bayerische Motoren Werke Ag Forming tool for thin metal or plastic sheet parts, in particular automotive body parts, has a forming gap to which compressed gas can be fed and a pressure switch linked to a warning circuit
DE10343001A1 (en) * 2003-09-17 2005-04-14 Bayerische Motoren Werke Ag Forming tool for thin metal or plastic sheet has bores opposite each other in the die and punch, one connected to compressed gas, the other to a gas pressure switch
DE102004031222B3 (en) * 2004-06-28 2005-08-11 Benteler Automobiltechnik Gmbh Metal plate structural component for a motor vehicle with a design fracture point between at least two plates has a load detector and film sensor connected to an evaluation unit to permit early diagnosis of joint failure
DE102004031184B3 (en) * 2004-06-28 2005-10-06 Benteler Automobiltechnik Gmbh Motor vehicle`s body component, has detector unit including voltage source and voltmeter for measuring electrical signal, and detecting change of state of measured electrical signal to identify fissure in structural component
DE102007060278A1 (en) 2007-12-12 2009-06-18 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Apparatus and method for the quality inspection of sheet metal parts
DE102012100096B4 (en) 2012-01-06 2016-10-27 Benteler Automobiltechnik Gmbh Forming tool with acoustic quality control
DE202012009675U1 (en) * 2012-10-10 2014-01-13 Ulrich Seuthe Apparatus for detecting cracking of a component due to induction hardening of the component
RU2570592C1 (en) * 2014-10-27 2015-12-10 Алексей Николаевич Кузьмин Method of detecting and analysing acoustic emission signals
DE102016205157A1 (en) 2016-03-30 2017-10-05 Zf Friedrichshafen Ag Process for crack formation detection during workpiece machining
DE102016205944A1 (en) 2016-04-08 2017-10-12 Zf Friedrichshafen Ag Method and device for detecting the presence of a foreign body
DE102017208909A1 (en) * 2017-05-26 2018-11-29 Trumpf Werkzeugmaschinen Gmbh + Co. Kg A method for determining material properties of a workpiece by audio analysis of a workpiece processing and punching machine and computer program product
RU2709414C1 (en) * 2019-06-04 2019-12-17 Алексей Николаевич Кузьмин Method of recording and analyzing acoustic emission signals in a system for diagnostic monitoring of production facilities
CN114877982A (en) * 2022-05-07 2022-08-09 华能平凉发电有限责任公司 Audio signal acquisition equipment

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 (en) * 1980-09-30 1982-11-25 Kraftwerk Union AG, 4330 Mülheim Method for acoustic emission testing of containers or pipelines made of steel, in particular for nuclear reactor plants
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 (en) * 1992-12-16 1996-09-05 Daimler Benz Ag Method for adjusting the clamping force of the hold-down of drawing presses
JPH09145698A (en) * 1995-11-20 1997-06-06 Hitachi Cable Ltd Ultrasonic flaw detector for metal rod

Also Published As

Publication number Publication date
GB2340604A (en) 2000-02-23
DE19837369A1 (en) 2000-03-02
IT1309043B1 (en) 2002-01-16
FR2782464A1 (en) 2000-02-25
ES2159476B1 (en) 2002-04-01
CZ9902906A3 (en) 2002-01-16
GB2340604B (en) 2002-07-17
ITRM990524A1 (en) 2001-02-13
ES2159476A1 (en) 2001-10-01
FR2782464B1 (en) 2002-05-03
GB2340604A8 (en) 2000-03-01
ITRM990524A0 (en) 1999-08-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030802