JPH0471794A - Welding method - Google Patents
Welding methodInfo
- Publication number
- JPH0471794A JPH0471794A JP2181099A JP18109990A JPH0471794A JP H0471794 A JPH0471794 A JP H0471794A JP 2181099 A JP2181099 A JP 2181099A JP 18109990 A JP18109990 A JP 18109990A JP H0471794 A JPH0471794 A JP H0471794A
- Authority
- JP
- Japan
- Prior art keywords
- cut end
- end faces
- welding
- steel sheet
- roller
- 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
Links
- 238000003466 welding Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
Abstract
Description
【発明の詳細な説明】
A9発明の目的
(1)産業上の利用分野
本発明は薄板鋼板等の金属薄板の切断端面同士の突合せ
溶接方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION A9 Object of the Invention (1) Industrial Application Field The present invention relates to a method for butt welding cut end surfaces of thin metal plates such as thin steel plates.
(2)従来の技術
レーザビームの高密度熱源を利用して薄肉の金属材を溶
接するようにした、溶接技術は既に知られている(機械
工学全書第23巻、溶接工学23(コロナ社発行)、第
23章°“最近の溶接技術”参照)。(2) Conventional technology A welding technology that uses a high-density heat source of a laser beam to weld thin metal materials is already known (Mechanical Engineering Complete Book Volume 23, Welding Engineering 23 (published by Corona Publishing). ), see Chapter 23° “Recent Welding Technology”).
(3)発明が解決しようとする課題
ところでレーザ溶接では、レーザビームの照射による被
溶接材の溶は込みが大きいため、薄板綱板の切断断面同
士を突合せレーザ溶接する際には所定の溶接条件が存在
し、たとえば薄板鋼板の厚さが2.0〜4.OLllm
のものでは、その切断端面間の溶接クリアランスは0.
02m+以下である必要があり、もしそのクリアランス
が0.02謹以上であると、レーザビーム照射による鋼
板の溶は込みで溶接ラインに沿って凹部が発生し、溶接
の表面精度が悪くなる。(3) Problems to be Solved by the Invention In laser welding, the laser beam irradiation causes a large penetration into the material to be welded, so when butt-cutting cross sections of thin steel sheets are laser welded, certain welding conditions must be met. For example, the thickness of the thin steel plate is 2.0 to 4. OLllm
The welding clearance between the cut end faces is 0.
If the clearance is 0.02m+ or more, a recess will be generated along the welding line due to melt penetration of the steel plate by laser beam irradiation, and the surface accuracy of welding will deteriorate.
ところが厚さが2.0〜4.0閣の薄板鋼板01を実際
にシャーリング切断(精密打抜き)すると第3図に示す
ようにその切断端面E′は、0.03〜0.05mの高
低差を有する凹凸面となり、この切断端面E′を突合せ
溶接すべく突き合せれば、それら間のクリアランスは第
4図に示すように0.06〜O,lO++aとなって前
述のレーザ溶接条件であるクリアランス0.02m以下
を大きく超えることになって、溶接ラインに許容範囲を
超える凹部が発生し、たとえば車両用車輪のホイールリ
ムの如き、その溶接面をそのま一活用するものには到底
適用できないという課題がある。However, when a thin steel plate 01 with a thickness of 2.0 to 4.0 mm is actually sheared and cut (precision punched), the cut end surface E' has a height difference of 0.03 to 0.05 m, as shown in Figure 3. When the cut end surfaces E' are brought together for butt welding, the clearance between them becomes 0.06~0.1O++a as shown in Fig. 4, which is the laser welding condition described above. This greatly exceeds the clearance of 0.02 m or less, and a recess that exceeds the allowable range occurs in the weld line, making it impossible to apply to items where the welded surface is used as is, such as the wheel rim of a vehicle wheel. There is a problem.
本発明は上記実情にかんがみてなされたもので、鋼板薄
板等の金属薄板の切断端面を強力かつ溶接表面に凹部の
ない、精度のよい溶接ができるようにした溶接方法を提
供することを目的とするものである。The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a welding method that enables strong and accurate welding of the cut end face of a thin metal plate such as a thin steel plate with no recesses on the welding surface. It is something to do.
B0発明の構成
(1)課題を解決するための手段
前記目的達成のため、本発明は薄板鋼板等の金属薄板の
切断端面同士を突合せて、両切断端面を溶接するように
した溶接方法において、前記金属薄板の切断端面を押潰
してその両側縁部にそれぞれ肉盛を形成し、次いでその
両端面を突合せて溶接する。B0 Structure of the Invention (1) Means for Solving the Problems To achieve the above object, the present invention provides a welding method in which cut end surfaces of thin metal plates such as thin steel plates are butted together and both cut end surfaces are welded. The cut end face of the thin metal plate is crushed to form overlays on both side edges thereof, and then the both end faces are brought together and welded.
(2)作 用
薄板鋼板等の金属薄板の切断端面同士を突合せ溶接する
際に、その切断端面を押潰してその両側縁部に肉盛を形
成した後、その両切断端面同士を突合せて溶接する。こ
れにより強力かつ表面精度のよい突合せ溶接が可能とな
る。(2) Function When butt welding the cut end faces of thin metal plates such as thin steel plates, the cut end faces are crushed to form overlays on both side edges, and then both cut end faces are butted together and welded. do. This enables strong butt welding with good surface precision.
(3)実施例 以下、図面により本発明の一実施例について説明する。(3) Examples An embodiment of the present invention will be described below with reference to the drawings.
■ 先ず第1図(イ)に示すように薄板鋼板の一定幅の
コイル素材をシャーリング切断して帯状の薄板鋼板1を
用意する。(1) First, as shown in FIG. 1(A), a strip-shaped thin steel plate 1 is prepared by shearing and cutting a coil material of a constant width of a thin steel plate.
■ 次に第1図(ロ)に示すようにこの薄板鋼板1を円
形状に丸めてその切断端面E、Eを含む端部分L+、1
+をフラフトにして前記切断端面EE同士を突合せ、そ
れらをCO2レーザ溶接により溶接して環状素材2を作
る。■ Next, as shown in FIG.
+ is made into a fluff, the cut end surfaces EE are butted together, and they are welded by CO2 laser welding to produce an annular material 2.
■ 次いで前記環状素材2に適宜の機械加工が施されて
車輪のホイールリム3が製造される。(2) The annular material 2 is then subjected to appropriate machining to produce the wheel rim 3 of the wheel.
この場合前記溶接部は、後加工することなく、そのまX
活用される。In this case, the welded part is processed as it is without any post-processing.
Utilized.
ところで前記■の溶接工程は次のように行われる。By the way, the welding step (2) above is performed as follows.
薄板鋼板1の切断端面E、EはCO□レーザ溶接に先立
って端面加工が施される。The cut end faces E and E of the thin steel plate 1 are subjected to end face processing prior to CO□ laser welding.
(i) 第2図(A)に示すように薄板鋼板1の切断
端面Eの近傍をクランパ4によって上下面よりクランプ
したのち、該切断端面Eに、外周面の中央部に突部51
を有する太鼓状のローラ5の外周面を対面させ、該ロー
ラ5を強制回転させつつ薄板鋼板1の長手方向、すなわ
ち突合せ方向に移動して該ローラ5の外周面の中央部を
以て前記切断端面Eを加圧すると、咳端面Eは押潰され
て切断端面の両側縁部に肉盛6,6が形成され、同時に
切断端面ばローラ5によって滑らかに仕上げられる。(i) As shown in FIG. 2(A), after the clamper 4 clamps the vicinity of the cut end surface E of the thin steel plate 1 from the upper and lower surfaces, a protrusion 51 is attached to the cut end surface E at the center of the outer peripheral surface.
The outer peripheral surfaces of drum-shaped rollers 5 facing each other are moved in the longitudinal direction of the thin steel plate 1, that is, in the abutting direction while the rollers 5 are forcibly rotated, and the center portion of the outer peripheral surface of the rollers 5 is moved to the cut end surface E. When pressurized, the cut end surface E is crushed to form overlays 6, 6 on both side edges of the cut end surface, and at the same time, the cut end surface is smoothed by the rollers 5.
(11) 次いで前述のように加工を施された切断端
面同士は第2図(B)に示すように突合わされる。(11) Next, the cut end surfaces processed as described above are butted together as shown in FIG. 2(B).
(in) 薄板鋼板1の端部分1+、Itをクランパ
7によってクランプしたのち突合せられた切断端面E、
E同士はCOz レーザ溶接機8からレーザビームによ
り溶接される。(in) Cut end surfaces E, which are butted together after the end portions 1+ and It of the thin steel plate 1 are clamped by the clamper 7,
E are welded together using a laser beam from a COz laser welding machine 8.
この際レーザ溶接によって溶接ラインに形成される凹部
は、前記肉盛6によって埋られる。そして強力かつ表面
精度のよい突合せ溶接を行うことができる。At this time, the recess formed in the weld line by laser welding is filled with the overlay 6. It is also possible to perform strong butt welding with good surface precision.
なお、前記実施例では本発明方法をCO2レーザ溶接に
実施した場合を説明したが、これをマイクロレーザ溶接
、電子ビーム溶接等にも適用が可能であり、また本発明
方法は前述の溶接が可能な他の金属薄板の切断端面の溶
接にも適用が可能である。In addition, in the above example, the case where the method of the present invention was applied to CO2 laser welding was explained, but this can also be applied to micro laser welding, electron beam welding, etc., and the method of the present invention is also applicable to the above-mentioned welding. It can also be applied to welding cut ends of other thin metal plates.
また前記実施例では薄板鋼板の切断端面の肉盛形成手段
としてローラを用いた場合を説明したがこの肉盛を他の
手段によってもよいことは勿論である。Further, in the above embodiment, a roller is used as a means for forming a build-up on the cut end face of a thin steel plate, but it goes without saying that other means may be used for forming the build-up.
また前記実施例では、−枚の薄板の両切断端面を溶接し
たが、二枚の薄板の切断端面同士を溶接もよい。Further, in the above embodiment, both cut end surfaces of the two thin plates were welded, but the cut end surfaces of two thin plates may be welded together.
C0発明の効果
以上のように本発明によれば、El板鋼板等の金属薄板
の切断端面同士を突合せ溶接する溶接方法において、前
記切断端面を押潰してその両側縁部に肉盛を形成し、次
いで両切断端面同士を突合せて溶接したので、強力かつ
表面精度のよい突合せ溶接を行うことができる。Effects of the C0 Invention As described above, according to the present invention, in a welding method for butt welding the cut end faces of thin metal plates such as El steel sheets, the cut end faces are crushed to form overlays on both side edges thereof. Then, since the two cut end surfaces were butted against each other and welded, strong butt welding with good surface precision can be performed.
第1図(イ)、(ロ)および(ハ)は、薄板鋼板から車
輪のリムを製造する工程を示す工程(財)、第2図(A
)、(B)および(C)は本発明溶接方法による溶接工
程を示す工程図、第3図はI板鋼板のシャーリング切断
端面の断面図、第4図はその切断端面を突合せた状態の
断面図である。
1・・・薄板鋼板、6・・・肉盛、
E・・・切断端面
第3図Figures 1 (a), (b) and (c) show the process of manufacturing wheel rims from thin steel sheets;
), (B), and (C) are process diagrams showing the welding process according to the welding method of the present invention, FIG. 3 is a cross-sectional view of the sheared cut end surface of an I plate steel plate, and FIG. 4 is a cross-sectional view of the cut end surfaces when they are butted together. It is a diagram. 1... Thin steel plate, 6... Overlay, E... Cut end surface Fig. 3
Claims (1)
両切断端面を溶接するようにした溶接方法において、前
記金属薄板の切断端面を押潰してその両側縁部にそれぞ
れ肉盛を形成し、次いでその両端面を突合せて溶接する
ことを特徴とする溶接方法。 2 前記溶接はレーザ溶接である、第1項記載の溶接方
法。[Claims] 1. By butting together the cut end surfaces of thin metal plates such as thin steel plates,
A welding method in which both cut end faces are welded, characterized in that the cut end face of the thin metal plate is crushed to form overlays on both side edges thereof, and then the both end faces are brought together and welded. Method. 2. The welding method according to item 1, wherein the welding is laser welding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2181099A JP2719979B2 (en) | 1990-07-09 | 1990-07-09 | Welding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2181099A JP2719979B2 (en) | 1990-07-09 | 1990-07-09 | Welding method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0471794A true JPH0471794A (en) | 1992-03-06 |
JP2719979B2 JP2719979B2 (en) | 1998-02-25 |
Family
ID=16094821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2181099A Expired - Fee Related JP2719979B2 (en) | 1990-07-09 | 1990-07-09 | Welding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2719979B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09122952A (en) * | 1995-10-31 | 1997-05-13 | Mitsubishi Motors Corp | Production of welded product |
CN102933508A (en) * | 2010-06-04 | 2013-02-13 | 富康科技株式会社 | Method and apparatus for producing bio-gas employing technology for improving quality of raw material fed thereto |
EP3769901A1 (en) * | 2019-07-24 | 2021-01-27 | Wilh. Kämper GmbH u. Co. KG | Method and device for producing welded rings |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6487090A (en) * | 1987-09-30 | 1989-03-31 | Toyo Seikan Kaisha Ltd | Butt welding method by laser beam |
-
1990
- 1990-07-09 JP JP2181099A patent/JP2719979B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6487090A (en) * | 1987-09-30 | 1989-03-31 | Toyo Seikan Kaisha Ltd | Butt welding method by laser beam |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09122952A (en) * | 1995-10-31 | 1997-05-13 | Mitsubishi Motors Corp | Production of welded product |
CN102933508A (en) * | 2010-06-04 | 2013-02-13 | 富康科技株式会社 | Method and apparatus for producing bio-gas employing technology for improving quality of raw material fed thereto |
EP3769901A1 (en) * | 2019-07-24 | 2021-01-27 | Wilh. Kämper GmbH u. Co. KG | Method and device for producing welded rings |
Also Published As
Publication number | Publication date |
---|---|
JP2719979B2 (en) | 1998-02-25 |
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