DE3277073D1 - Method and apparatus for detecting crack produced in workpiece in distortion removal processing - Google Patents

Method and apparatus for detecting crack produced in workpiece in distortion removal processing

Info

Publication number
DE3277073D1
DE3277073D1 DE8282301518T DE3277073T DE3277073D1 DE 3277073 D1 DE3277073 D1 DE 3277073D1 DE 8282301518 T DE8282301518 T DE 8282301518T DE 3277073 T DE3277073 T DE 3277073T DE 3277073 D1 DE3277073 D1 DE 3277073D1
Authority
DE
Germany
Prior art keywords
workpiece
removal processing
distortion removal
crack produced
detecting crack
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
Application number
DE8282301518T
Other languages
English (en)
Inventor
Kazuo Fujimori
Akira Banno
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Application granted granted Critical
Publication of DE3277073D1 publication Critical patent/DE3277073D1/de
Expired 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
    • G01N29/14—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
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/22—Feeler-pin gauges, e.g. dial gauges
    • G01B3/24—Feeler-pin gauges, e.g. dial gauges with open yoke, i.e. calipers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
DE8282301518T 1982-03-23 1982-03-23 Method and apparatus for detecting crack produced in workpiece in distortion removal processing Expired DE3277073D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19820301518 EP0089430B1 (de) 1982-03-23 1982-03-23 Verfahren und Vorrichtung zum Nachweisen eines während der Beseitigung einer Deformation in einem Werkstück erzeugten Risses

Publications (1)

Publication Number Publication Date
DE3277073D1 true DE3277073D1 (en) 1987-10-01

Family

ID=8189615

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282301518T Expired DE3277073D1 (en) 1982-03-23 1982-03-23 Method and apparatus for detecting crack produced in workpiece in distortion removal processing

Country Status (2)

Country Link
EP (1) EP0089430B1 (de)
DE (1) DE3277073D1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188830A (en) * 1978-10-24 1980-02-19 The United States Of America As Represented By The Secretary Of The Army Apparatus for examining structures using stimulated acoustic emission
US4176543A (en) * 1978-11-17 1979-12-04 Texaco Inc. Sonic leak detector and method
US4207771A (en) * 1979-03-02 1980-06-17 Western Electric Company, Inc. Method and apparatus for monitoring cracking using stress wave emission techniques

Also Published As

Publication number Publication date
EP0089430B1 (de) 1987-08-26
EP0089430A1 (de) 1983-09-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)