JPS6462218A - Method for detecting welding point of metal strip - Google Patents

Method for detecting welding point of metal strip

Info

Publication number
JPS6462218A
JPS6462218A JP21534687A JP21534687A JPS6462218A JP S6462218 A JPS6462218 A JP S6462218A JP 21534687 A JP21534687 A JP 21534687A JP 21534687 A JP21534687 A JP 21534687A JP S6462218 A JPS6462218 A JP S6462218A
Authority
JP
Japan
Prior art keywords
welding point
mark
laser beam
metal strip
strip
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
JP21534687A
Other languages
Japanese (ja)
Inventor
Tsugio Yokozawa
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 Steel Corp
Original Assignee
Kawasaki Steel 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP21534687A priority Critical patent/JPS6462218A/en
Publication of JPS6462218A publication Critical patent/JPS6462218A/en
Pending legal-status Critical Current

Links

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  • Laser Beam Processing (AREA)

Abstract

PURPOSE:To surely detect a welding point and to enable a stabilized line operation by marking a mark for detection by using a laser beam near the welding point of a strip and optically detecting this mark. CONSTITUTION:The laser beam from a laser beam oscillator 6 is subjected to a change-direction by mirror parts 8, 8', condensed by the condensing lens 9 inside a torch 9 and it is projected to near the welding point of a strip 1 to mark a mark 10. This mark 10 is detected by the optical means of the CCD camera 11, etc., installed at the inlet side of a shear and a process part. The detected welding point position is utilized as the tracking signal inside a line.
JP21534687A 1987-08-31 1987-08-31 Method for detecting welding point of metal strip Pending JPS6462218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21534687A JPS6462218A (en) 1987-08-31 1987-08-31 Method for detecting welding point of metal strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21534687A JPS6462218A (en) 1987-08-31 1987-08-31 Method for detecting welding point of metal strip

Publications (1)

Publication Number Publication Date
JPS6462218A true JPS6462218A (en) 1989-03-08

Family

ID=16670779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21534687A Pending JPS6462218A (en) 1987-08-31 1987-08-31 Method for detecting welding point of metal strip

Country Status (1)

Country Link
JP (1) JPS6462218A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012223790A (en) * 2011-04-19 2012-11-15 Sumitomo Metal Ind Ltd Method and apparatus for manufacturing welded shape steel
US20150209854A1 (en) * 2014-01-29 2015-07-30 Golden Aluminum Company Method for forming cut for tab and end manufacture
KR20160067535A (en) * 2014-12-04 2016-06-14 주식회사 포스코 Apparatus and Method for preventing erroneous detection of welding part
JP2021062395A (en) * 2019-10-16 2021-04-22 Ｊｆｅスチール株式会社 Method for forming hole for detecting position of metal strip

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012223790A (en) * 2011-04-19 2012-11-15 Sumitomo Metal Ind Ltd Method and apparatus for manufacturing welded shape steel
US20150209854A1 (en) * 2014-01-29 2015-07-30 Golden Aluminum Company Method for forming cut for tab and end manufacture
KR20160067535A (en) * 2014-12-04 2016-06-14 주식회사 포스코 Apparatus and Method for preventing erroneous detection of welding part
JP2021062395A (en) * 2019-10-16 2021-04-22 Ｊｆｅスチール株式会社 Method for forming hole for detecting position of metal strip

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