JPS57137082A - Measuring method for cross-sectional shape of weld zone - Google Patents

Measuring method for cross-sectional shape of weld zone

Info

Publication number
JPS57137082A
JPS57137082A JP2289581A JP2289581A JPS57137082A JP S57137082 A JPS57137082 A JP S57137082A JP 2289581 A JP2289581 A JP 2289581A JP 2289581 A JP2289581 A JP 2289581A JP S57137082 A JPS57137082 A JP S57137082A
Authority
JP
Japan
Prior art keywords
weld zone
pipe
sectional shape
cross
image
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.)
Pending
Application number
JP2289581A
Other languages
Japanese (ja)
Inventor
Kazuo Sano
Yutaka Mihara
Katsujiro Watanabe
Toshio Okawa
Koji Suzuki
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP2289581A priority Critical patent/JPS57137082A/en
Publication of JPS57137082A publication Critical patent/JPS57137082A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/25—Monitoring devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To measure the cross-sectional shape of a weld zone accurately and surely without receiving the influence of external light by irradiating slit light of a single wavelength to the weld zone, and receiving an image of the optically cut profile through a narrow band interference filter. CONSTITUTION:Slit light 4 of a single wavelength is irradiated from a cylindrical lens 3 to the weld beads 2 of an electric welded pipe 1 and the parts around the same. Laser light is supplied from a laser light generator 5 through an optical fiber 6 to a cylindrical lens 3, and is made into slit light 4 which is irradiated to the beads 2 and the parts around the same diagonally to the pipe axis of the pipe 1 and along the circumference of the pipe. The optically cut profile 7 by the slit light 4 produced in the weld zone of the outside surfacd of the pipe 1 passes through a narrow band interference filter 8 and is received in an ITV camera 9, the image receiving signal thereof is fed to a controller 10. The image receiving signal is fed via the controller 10 to a CRT 13, where the image 7' corresponding to the profile 7, that is, the cross-sectional shape of the weld zone is obtained.
JP2289581A 1981-02-20 1981-02-20 Measuring method for cross-sectional shape of weld zone Pending JPS57137082A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2289581A JPS57137082A (en) 1981-02-20 1981-02-20 Measuring method for cross-sectional shape of weld zone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2289581A JPS57137082A (en) 1981-02-20 1981-02-20 Measuring method for cross-sectional shape of weld zone

Publications (1)

Publication Number Publication Date
JPS57137082A true JPS57137082A (en) 1982-08-24

Family

ID=12095381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2289581A Pending JPS57137082A (en) 1981-02-20 1981-02-20 Measuring method for cross-sectional shape of weld zone

Country Status (1)

Country Link
JP (1) JPS57137082A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6093424A (en) * 1983-10-28 1985-05-25 Kawasaki Heavy Ind Ltd Method and device for forming material body having the same shape as objective material body from objective thing
JPS61140384A (en) * 1984-12-13 1986-06-27 Nippon Steel Corp Welding state measuring method in electric seam welding
JPS61172006A (en) * 1985-01-25 1986-08-02 Nippon Steel Corp Welded step meter of pipe seam part
JPS6283611A (en) * 1985-10-08 1987-04-17 Nippon Steel Corp Measuring difference in outer surface level of weld of welded pipe
JPS6283610A (en) * 1985-10-08 1987-04-17 Nippon Steel Corp Measuring difference in outer surface level of weld of welded pipe
JPS6362288U (en) * 1986-09-05 1988-04-25
JPS63149781A (en) * 1986-12-13 1988-06-22 Nippon Steel Corp Steel bar counting device
US6959103B2 (en) 2000-01-31 2005-10-25 Omron Corporation Displacement sensor having a display data output
JP2006337270A (en) * 2005-06-03 2006-12-14 Bridgestone Corp Measuring method for cross-sectional shape and device therefor
JP2008175577A (en) * 2007-01-16 2008-07-31 Jfe Steel Kk Method and device for monitoring welded part of electro-resistance-welded pipe and manufacturing method of electro-resistance-welded pipe
JP2016087621A (en) * 2014-10-31 2016-05-23 Ｊｆｅスチール株式会社 Shape measurement method and device of butt-welded steel pipe
WO2019225514A1 (en) * 2018-05-24 2019-11-28 株式会社オプトン Brazing device

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6093424A (en) * 1983-10-28 1985-05-25 Kawasaki Heavy Ind Ltd Method and device for forming material body having the same shape as objective material body from objective thing
JPH0534603B2 (en) * 1983-10-28 1993-05-24 Kawasaki Heavy Ind Ltd
JPS61140384A (en) * 1984-12-13 1986-06-27 Nippon Steel Corp Welding state measuring method in electric seam welding
JPH0371946B2 (en) * 1984-12-13 1991-11-15 Nippon Steel Corp
JPH0372926B2 (en) * 1985-01-25 1991-11-20 Nippon Steel Corp
JPS61172006A (en) * 1985-01-25 1986-08-02 Nippon Steel Corp Welded step meter of pipe seam part
JPS6283611A (en) * 1985-10-08 1987-04-17 Nippon Steel Corp Measuring difference in outer surface level of weld of welded pipe
JPS6283610A (en) * 1985-10-08 1987-04-17 Nippon Steel Corp Measuring difference in outer surface level of weld of welded pipe
JPH0372928B2 (en) * 1985-10-08 1991-11-20 Nippon Steel Corp
JPH0372927B2 (en) * 1985-10-08 1991-11-20 Nippon Steel Corp
JPS6362288U (en) * 1986-09-05 1988-04-25
JPH0341908Y2 (en) * 1986-09-05 1991-09-03
JPH0417552B2 (en) * 1986-12-13 1992-03-26 Nippon Steel Corp
JPS63149781A (en) * 1986-12-13 1988-06-22 Nippon Steel Corp Steel bar counting device
US6959103B2 (en) 2000-01-31 2005-10-25 Omron Corporation Displacement sensor having a display data output
US8107685B2 (en) 2000-01-31 2012-01-31 Omron Corporation Displacement sensor having a display data output
JP2006337270A (en) * 2005-06-03 2006-12-14 Bridgestone Corp Measuring method for cross-sectional shape and device therefor
JP2008175577A (en) * 2007-01-16 2008-07-31 Jfe Steel Kk Method and device for monitoring welded part of electro-resistance-welded pipe and manufacturing method of electro-resistance-welded pipe
JP2016087621A (en) * 2014-10-31 2016-05-23 Ｊｆｅスチール株式会社 Shape measurement method and device of butt-welded steel pipe
WO2019225514A1 (en) * 2018-05-24 2019-11-28 株式会社オプトン Brazing device

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