JPS6174776A - Continuous tack welding method - Google Patents

Continuous tack welding method

Info

Publication number
JPS6174776A
JPS6174776A JP19405884A JP19405884A JPS6174776A JP S6174776 A JPS6174776 A JP S6174776A JP 19405884 A JP19405884 A JP 19405884A JP 19405884 A JP19405884 A JP 19405884A JP S6174776 A JPS6174776 A JP S6174776A
Authority
JP
Japan
Prior art keywords
welding
tack
wire feeding
spot
wire
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
JP19405884A
Other languages
Japanese (ja)
Inventor
Hiroichi Nomura
野村　博一
Yukihiko Sato
之彦 佐藤
Yoshikazu Sato
慶和 佐藤
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 JP19405884A priority Critical patent/JPS6174776A/en
Publication of JPS6174776A publication Critical patent/JPS6174776A/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
    • B23K9/00—Arc welding or cutting
    • B23K9/02—Seam welding; Backing means; Inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)

Abstract

PURPOSE:To form a continuous tack weld bead free from irregularity of height by tack welding places of welding other than places where spot welding is made to the same height with spot welded part. CONSTITUTION:The spot welded parts 6 are formed by making spot welding at proper interval in places of welding of a base metal 1 while making correction of unevenness of the base metal 1 and adjusting of groove. Then, tack welding of places of welding is made while feeding a wire 7 from a wire feeding device. Tack welding is made controlling wire feeding of the wire feeding device to enable to weld to the same height with that of spot welded parts 6 at places of welding other than spot welded parts 6. When tack welding is made, and the wire 7 arrives at spot welded parts 6, wire feeding is stopped to stop tack welding. When the wire 7 passed the spot welded parts, tack welding is made again controlling wire feeding.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は本溶接に先立って行なう仮付溶接を連続的に
行なう仮付溶接方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a tack welding method for continuously performing tack welding prior to main welding.

〔従来の技術〕[Conventional technology]

仮付溶接は、母材の目違いの直しと本溶接を行なった場
合、溶接を確実に行なえるように開先合せを完全に行な
う。For tack welding, when correcting the misalignment of the base metal and performing main welding, the grooves should be perfectly aligned to ensure welding.

従来、造船等の仮付溶接は第２図に示すように母材１の
溶接個所２を例えば３００酎間隔毎に５０−程度の短い
、間隔の断続溶接部３に溶接を行なうタック溶接が行な
われている。またこのようだ行なわれている仮付溶接の
ほかに、第６図に示すように開先４に間隙が生じるとシ
ーリングビード５を置いて、開先の間隙からの本溶接の
溶は落ち防止を行なっている。Conventionally, tack welding in shipbuilding and the like has been carried out by tack welding, in which welding points 2 of base metal 1 are welded to intermittent welds 3 at short intervals of about 50 mm, for example, every 300 mm, as shown in Fig. 2. It is. In addition to the tack welding that is carried out in this way, as shown in Figure 6, when a gap is created in the groove 4, a sealing bead 5 is placed to prevent the melt from the main welding from falling from the gap in the groove. is being carried out.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従来の仮付溶接は上記のように断続的に行なわれている
ため、開先精度が悪く開先４に間隙が生じると、開先４
の間隙部にシーリングビード５を置いたのち、本溶接す
る必要があり、このため溶接工数を多く必要とした。Conventional tack welding is performed intermittently as described above, so if the groove precision is poor and a gap occurs in the groove 4, the groove 4
After placing the sealing bead 5 in the gap, it was necessary to carry out main welding, which required a large number of welding man-hours.

さらに、断続仮付溶接を行なった状態あるいは断続仮付
溶接後シー１１ングピードを置いた状態で本溶接を行な
うと仮付溶接部あるいはシーリングビードを置いた個所
と他の溶接個所とて溶込み深さに不連続を生じ、溶接欠
陥の原因となった。Furthermore, if main welding is performed with intermittent tack welding or with a sealing bead placed after intermittent tack welding, the penetration depth will be different from the area where the tack weld or sealing bead was placed and other welding areas. This caused discontinuities in the welding process, causing welding defects.

〔問題点を解決するための手段〕[Means for solving problems]

この発明の連続仮付溶接方法は母材の目違いを直しなが
ら点付溶接を行なったのち、ワイヤ送給装置を具備した
溶接装置を使用し、上記点付溶接部においてはワイヤ送
給装置のワイヤ送りを停止し、上記点付溶接部以外では
点付溶接部の高さと同じ高さに溶接できるようにワイヤ
送給装置のワイヤ送りを制御して仮付溶接を行なう方法
である。The continuous tack welding method of the present invention performs spot welding while correcting the misalignment of the base metal, and then uses a welding device equipped with a wire feeding device. In this method, tack welding is performed by stopping the wire feeding and controlling the wire feeding of the wire feeding device so that the welding is performed at the same height as the spot welding area other than the spot welding area.

〔作用〕[Effect]

この発明は、先に点付溶接を行なうことによシ目違を直
した母材の溶接個所を暫定的に固定し、その後点付溶接
を行なった溶接個所以外の溶接個所を点付溶接部の高さ
と同じ高さに仮付溶接することにより、連続したかつ扁
さの不揃いもない仮付溶接ビードを形成する。This invention temporarily fixes the welded parts of the base material whose seams have been corrected by first performing spot welding, and then welds other than the welded parts where spot welding is performed. By performing tack welding at the same height as the height of the tack weld, a continuous tack weld bead with no unevenness is formed.

〔実施例〕〔Example〕

第１図はこの発明の一実施例を模式的に示した図であり
、１は母材、６は母材１の溶接個所に行なった点付溶接
部である。点付溶接部６は母材１の目違いの直しを行な
い、開先合せを行ないなから、母材１の溶接個所に適当
間隔例えば６００Ｂ毎に点付溶接を行なって形成する。FIG. 1 is a diagram schematically showing an embodiment of the present invention, in which 1 is a base material, and 6 is a spot welded portion made at a welding location of the base material 1. In FIG. The spot welds 6 are formed by correcting the misalignment of the base metal 1 and aligning the grooves, and then spot welding is performed at appropriate intervals, for example, every 600 mm, at welding locations on the base metal 1.

この点付溶接を行なったのち、溶接装置のワイヤ送給装
置からワイヤ７を送給しながら溶接個所の仮付溶接を行
なう。仮付溶接は、点付溶接ＶＡ６以外の溶接個所にお
いては、点付溶接部６の高さと同じ高さに溶接できるよ
うにワイヤ送給装置のワイヤ送りを制御して行なう。ワ
イヤ送給装置のワイヤ送り制御はアーク長一定制御によ
り行なう。After performing this spot welding, tack welding is performed at the welding location while feeding the wire 7 from the wire feeding device of the welding device. Tack welding is performed by controlling the wire feeding of the wire feeding device so that welding can be performed at the same height as the spot welding portion 6 at welding locations other than spot welding VA6. The wire feeding control of the wire feeding device is performed by constant arc length control.

この仮付溶接が第１図矢印方向に行なわれ、ワイヤ７が
点付溶接部６に達したときはワイヤ供給装置のワイヤ送
りを停止して仮付溶接を停止する。This tack welding is performed in the direction of the arrow in FIG. 1, and when the wire 7 reaches the spot welding portion 6, the wire feeding of the wire feeding device is stopped to stop the tack welding.

ワイヤ７が点付溶接部６を通過したのちは、ふたたびワ
イヤ送シを制御しながら仮付溶接を行なう。After the wire 7 has passed through the spot welding section 6, tack welding is performed again while controlling the wire feed.

このようにして出来た仮付浴接ビードは高さの不揃いも
なく、連続した溶接ビードとなる。The temporary welding bead produced in this manner has no irregularities in height and is a continuous weld bead.

〔発明の効果〕〔Effect of the invention〕

この発明は以上述べたよって母材の目違いを通しながら
点付溶接をしたのち、点付溶接部の高さに合わせて仮付
溶接を行なうことから、仮付溶接ビードが一定高さで連
続しているため、本溶接を行なうとさに溶は落ちを生じ
ることもなく、また溶込み深さも安定し、溶接欠陥も防
止することができる。さらに本溶接を行なうときに、溶
接線倣いによシ本溶接を機械的に行なうことができる。As described above, this invention performs spot welding while passing through the base metal at different intervals, and then performs tack welding in accordance with the height of the spot weld, so that the tack weld bead is continuous at a constant height. Therefore, when performing main welding, the melt does not drop, the penetration depth is stable, and welding defects can be prevented. Furthermore, when performing main welding, it is possible to perform main welding mechanically by following the weld line.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの発明の実施例を示す模式図、第２図は従来
の仮付溶接を示す平面図、第３図は開先に間隙が生じた
ときの開先部断面図である。 １・・・母材、２・・・溶接個所、６・・・断続溶接部
、４・・・開先、５・−・シーリングビード、６・・・
点付溶接部、７・・・ワイヤ。 第　１　図 第２図 第３図FIG. 1 is a schematic diagram showing an embodiment of the present invention, FIG. 2 is a plan view showing conventional tack welding, and FIG. 3 is a sectional view of the groove when a gap is created in the groove. DESCRIPTION OF SYMBOLS 1... Base metal, 2... Welding part, 6... Intermittent welding part, 4... Groove, 5... Sealing bead, 6...
Spot welded part, 7... wire. Figure 1 Figure 2 Figure 3

Claims (1)

【特許請求の範囲】[Claims] 母材の目違いを直しながら点付溶接を行なつたのち、ワ
イヤ送給装置を具備した溶接装置を使用し、上記点付溶
接部においてはワイヤ送給装置のワイヤ送りを停止し、
上記点付溶接部以外では点付溶接部の高さと同じ高さに
溶接できるようにワイヤ送給装置のワイヤ送りを制御し
て仮付溶接を行なう連続仮付溶接方法。After performing spot welding while correcting the misalignment of the base metal, using a welding device equipped with a wire feeding device, stopping the wire feeding of the wire feeding device at the spot welding part,
A continuous tack welding method in which tack welding is performed by controlling the wire feed of a wire feeding device so that the welding is performed at the same height as the spot welding part other than the spot welding part.
JP19405884A 1984-09-18 1984-09-18 Continuous tack welding method Pending JPS6174776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19405884A JPS6174776A (en) 1984-09-18 1984-09-18 Continuous tack welding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19405884A JPS6174776A (en) 1984-09-18 1984-09-18 Continuous tack welding method

Publications (1)

Publication Number Publication Date
JPS6174776A true JPS6174776A (en) 1986-04-17

Family

ID=16318243

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19405884A Pending JPS6174776A (en) 1984-09-18 1984-09-18 Continuous tack welding method

Country Status (1)

Country Link
JP (1) JPS6174776A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5931020A (en) * 1997-02-28 1999-08-03 Denso Corporation Refrigerant evaporator having a plurality of tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5931020A (en) * 1997-02-28 1999-08-03 Denso Corporation Refrigerant evaporator having a plurality of tubes

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