JPH04224076A - Key hole type one-side welding method - Google Patents

Key hole type one-side welding method

Info

Publication number
JPH04224076A
JPH04224076A JP40679690A JP40679690A JPH04224076A JP H04224076 A JPH04224076 A JP H04224076A JP 40679690 A JP40679690 A JP 40679690A JP 40679690 A JP40679690 A JP 40679690A JP H04224076 A JPH04224076 A JP H04224076A
Authority
JP
Japan
Prior art keywords
arc
welding
point
tack
bead
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
JP40679690A
Other versions
JPH07112628B2 (en
Inventor
Masatomo Murayama
Yuji Sugitani
Original Assignee
Nkk 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 Nkk Corp filed Critical Nkk Corp
Priority to JP2406796A priority Critical patent/JPH07112628B2/en
Publication of JPH04224076A publication Critical patent/JPH04224076A/en
Publication of JPH07112628B2 publication Critical patent/JPH07112628B2/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Abstract

PURPOSE: To obtain the stable bead shape of reverse side at the time of executing one-side welding to the groove with the intermittent tack welding bead while forming the key hole just under the arc.
CONSTITUTION: The high speed ratating-type arc welding method is used, while the arc sensor executes a tracer control of the groove and the height control of torch, the arc length at the back side point Cr of the rotating position of the arc is calculated with the detected values of the arc voltage and the welding current at the Cr point, the welding electric current is controlled so that the obtained arc length is made equal to the reference value, also the control is executed so that the positions 16, 17 of the tack welding bead 11 is detected with the change of the arc voltage at the front side point Cf of the rotating position of the arc, the welding electric current is increased at the start point of the tack welded, and the welding electric current is decreased at the finish point 17 of the tack welding bead.
COPYRIGHT: (C)1992,JPO&Japio
JP2406796A 1990-12-26 1990-12-26 Keyhole-type single-sided welding method Expired - Lifetime JPH07112628B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2406796A JPH07112628B2 (en) 1990-12-26 1990-12-26 Keyhole-type single-sided welding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2406796A JPH07112628B2 (en) 1990-12-26 1990-12-26 Keyhole-type single-sided welding method

Publications (2)

Publication Number Publication Date
JPH04224076A true JPH04224076A (en) 1992-08-13
JPH07112628B2 JPH07112628B2 (en) 1995-12-06

Family

ID=18516420

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2406796A Expired - Lifetime JPH07112628B2 (en) 1990-12-26 1990-12-26 Keyhole-type single-sided welding method

Country Status (1)

Country Link
JP (1) JPH07112628B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002001532A (en) * 2000-06-21 2002-01-08 Ishikawajima Harima Heavy Ind Co Ltd Method and device for welding
US8761651B2 (en) 2010-08-18 2014-06-24 Ricoh Company, Ltd. Image forming apparatus
US8818255B2 (en) 2010-03-17 2014-08-26 Ricoh Company, Ltd. Image forming apparatus with fixing liquid applicator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002001532A (en) * 2000-06-21 2002-01-08 Ishikawajima Harima Heavy Ind Co Ltd Method and device for welding
US8818255B2 (en) 2010-03-17 2014-08-26 Ricoh Company, Ltd. Image forming apparatus with fixing liquid applicator
US8761651B2 (en) 2010-08-18 2014-06-24 Ricoh Company, Ltd. Image forming apparatus

Also Published As

Publication number Publication date
JPH07112628B2 (en) 1995-12-06

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