JPS603912B2 - Method for joining dissimilar materials by electron beam welding - Google Patents
Method for joining dissimilar materials by electron beam weldingInfo
- Publication number
- JPS603912B2 JPS603912B2 JP5161179A JP5161179A JPS603912B2 JP S603912 B2 JPS603912 B2 JP S603912B2 JP 5161179 A JP5161179 A JP 5161179A JP 5161179 A JP5161179 A JP 5161179A JP S603912 B2 JPS603912 B2 JP S603912B2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- electron beam
- heat
- resistant
- beam welding
- 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.)
- Expired
Links
- 238000003466 welding Methods 0.000 title claims description 57
- 238000010894 electron beam technology Methods 0.000 title claims description 32
- 239000000463 material Substances 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 17
- 238000005304 joining Methods 0.000 title claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 229910045601 alloy Inorganic materials 0.000 claims description 20
- 239000000956 alloy Substances 0.000 claims description 20
- 229910000734 martensite Inorganic materials 0.000 claims description 20
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 238000005336 cracking Methods 0.000 description 10
- 239000002184 metal Substances 0.000 description 6
- 241000252233 Cyprinus carpio Species 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 101150077766 US30 gene Proteins 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
- Welding Or Cutting Using Electron Beams (AREA)
Description
【発明の詳細な説明】
本発明は電子ビーム溶接による異種材継手の接合方法に
係り、特に２鮒ｉ−１＆ｒ−Ｆｅ基耐熱合金と１ぷｒマ
ルテンサィト系耐熱鋼との電子ビーム溶接による異種材
継手の接合方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for joining joints of dissimilar materials by electron beam welding, and particularly relates to a method for joining joints of dissimilar materials by electron beam welding. This article relates to a method for joining material joints.
一般に電子ビーム溶接による異種材継手の最も普通の溶
嬢法は第１図に示すように部材２、部材４を電子ビーム
１８で直接熔後する方法である。しかし第２図に示す如
く２鮒ｉ−１＄ｒ−Ｆｅ基耐熱合金より成る第１部材６
と１にｒマルテンサィト系耐熱鋼より成る第２部材８の
異種材を第１図のように直接に電子ビームで溶接すると
、綾着金属の割れ１０と２鮒ｊ−１＄ｒ−Ｆｅ基耐熱合
金より成る第１部材の熱影響部の割れ１２が発生し、さ
らに１本ｒマルテンサィト系耐熱鋼より成る第２部材の
熱影響部は著しく硬化して割れ１４が発生する場合があ
る。従来この種の溶着金属の割れを防止するには、溶着
金属の組成を割れの発生しない組成に変更すればよいと
言われており、この方法として一般的には第３図に示す
ように、溶接面に適当なインサートメタル１６を挟んで
電子ビーム溶接を行なう方法がとられてきた。２州ｉ−
１＆ｒ−Ｆｅ基耐熱合金と１次ｒマルテンサィト系耐熱
鋼の異種材の継手の場合は、インサートメタルにＮｉや
ＪＩＳ○４３０＄ＵＳ３０８鋼を使用すれば落着金属の
割れを防止できる。Generally, the most common method for joining dissimilar materials by electron beam welding is a method in which members 2 and 4 are directly melted with an electron beam 18, as shown in FIG. However, as shown in FIG. 2, the first member 6 made of a Fe-based heat-resistant alloy
When the dissimilar materials of the second member 8 made of martensitic heat-resistant steel are directly welded to and 1 by an electron beam as shown in FIG. Cracks 12 may occur in the heat-affected zone of the first member made of a heat-resistant alloy, and the heat-affected zone of the second member made of heat-resistant martensitic steel may harden significantly and cracks 14 may occur. Conventionally, it has been said that in order to prevent this type of cracking in welded metal, it is sufficient to change the composition of the welded metal to one that does not cause cracking, and this method is generally as shown in Figure 3. A method has been adopted in which electron beam welding is performed by sandwiching a suitable insert metal 16 between the welding surfaces. 2 state i-
In the case of a joint made of dissimilar materials such as a 1&r-Fe-based heat-resistant alloy and a primary r-martensitic heat-resistant steel, cracking of the deposited metal can be prevented by using Ni or JIS ○430 $US308 steel for the insert metal.
しかしこの方法でも２州ｊ−１皮ｒ−Ｆｅ基耐熱合金の
熱影響部の割れ、及び１本ｒマルテンサィト系耐熱鋼の
熱影響部の硬化による割れは避けられない。２磯ｉ−１
Ｋｒ−Ｆｅ基耐熱合金の熱影響部の割れ（高温割れ）を
防止するには、熔接入熱を小さくし冷却速度を大とする
必要があり、一方１本ｒマルテンサィト系耐熱鋼の熱影
響部の硬化割れを防止するには、予熱を行ない冷却速度
を４・とする必要があり、したがってこの両タイプの割
れを同時に防止して溶接することは困難であり、従来健
全な溶接例は見当らない。However, even with this method, cracks in the heat-affected zone of the two-shu j-1 skin r-Fe-based heat-resistant alloy and cracks due to hardening of the heat-affected zone of the single-r martensitic heat-resistant steel cannot be avoided. 2iso i-1
To prevent cracking in the heat-affected zone (high-temperature cracking) of Kr-Fe-based heat-resistant alloys, it is necessary to reduce the welding heat input and increase the cooling rate. In order to prevent hardening cracks in the parts, it is necessary to preheat and set the cooling rate to 4. Therefore, it is difficult to weld while preventing both types of cracks at the same time, and no examples of healthy welding have been found in the past. do not have.
本発明の目的は高温割れ、硬化割れ等の溶接欠陥のない
２州ｊ−１５Ｃｒ−Ｆｅ基耐熱合金とＩＸｒマルテンサ
ィト系耐熱鋼より成る異種材の健全な電子ビーム溶接継
手を生成する効果的な方法を提供するにある。The purpose of the present invention is to effectively produce a sound electron beam welded joint of dissimilar materials consisting of a J-15Cr-Fe base heat-resistant alloy and an IXr martensitic heat-resistant steel without welding defects such as hot cracks and hardening cracks. We are here to provide you with a method.
本発明の要旨とするところは、２州ｉ−１にｒ−Ｆｅ基
耐熱合金より成る第１部材とＩＸｒマルテンサィト系耐
熱鋼より成る第２部材との異種材継手の電子ビーム溶接
による接合方法において、前記第１、第２部材の溶接面
に下記ｍ式および■式を満足する範囲にＪＩＳ○４３０
＄ＵＳ３０横綱をＴＩＣ溶接にてパタリング溶接する工
程と、電子ビーム溶接性の優れた前記ＳＵＳ３０８をパ
タリング溶接した第１、第２部材を電子ビーム溶接する
工程を有して成ることを特徴とする電子ビーム溶接によ
る異種材継手の接合方法である。The gist of the present invention is a method for joining a dissimilar material joint between a first member made of an r-Fe-based heat-resistant alloy and a second member made of an IXr martensitic heat-resistant steel by electron beam welding. , JIS○430 is applied to the welding surfaces of the first and second members in a range that satisfies the following M formula and ■ formula.
An electronic method comprising the steps of patterning and welding US30 Yokozuna by TIC welding, and electron beam welding the first and second members, each of which is patterned and welded with SUS308, which has excellent electron beam weldability. This is a method of joining dissimilar materials by beam welding.
ｔＢ，Ｚ２，１十０．０１５ｔ
ｔＢ２ ≧４．１十０．０１５ｔ
ここにｔＢ・，ｔＢ２ はそれぞれ第１部材、第２部材
溶接面に対するパタリング溶接厚さ（側）
ｔは溶接材の板厚（肌）
（板厚範囲２０柳ＳｔＳ３０仇舷）
この発明を第４図熔接断面図にもとづいて説明すると、
まず２州ｉ−ＩＫｒ−Ｆｅ基耐熱合金より成る第１部材
６の溶接面には熱影響部に割れが発生しないように３０
００〜４０００Ｊｏ山ｅ／ｃ収の低入熱ＴＩＧ溶接法で
ＪＩＳ○４３０＄ＵＳ３０横綱の被覆部２０をパタリン
グ溶接を施し、一方１次ｒマルテンサィト系耐熱鋼より
成る第２部材８の溶接面は熱影響部の硬化割れを防止す
るため３５０〜４００００の子熱前処理を施し、ついで
ＳＵＳ３０８鋼の被覆部２２をＴに溶接でパタリソグ溶
接を実施し、さらに溶接終了後６２５℃にて３時間焼鈍
の後熱処理する。tB, Z2, 10.015t tB2 ≧4.10.015t Here, tB・, tB2 are the patter welding thickness (side) for the welding surface of the first member and the second member, respectively. t is the plate thickness of the welding material (Skin) (Plate thickness range 20 Yanagi StS 30 Yard) This invention will be explained based on the welded cross-sectional view in Fig. 4.
First, the welding surface of the first member 6 made of an I-IKr-Fe-based heat-resistant alloy is
The covering part 20 of JIS○430$US30 Yokozuna is patterned and welded using a low heat input TIG welding method with 00 to 4000 Jo mountain e/c yield, while the welding surface of the second member 8 made of primary r-martensitic heat-resistant steel is welded. In order to prevent hardening cracks in the heat-affected zone, pre-heating treatment of 350 to 40,000°C was performed, and then the SUS308 steel sheathing part 22 was welded to T to perform pattern welding, and after welding was completed, it was heated at 625°C for 3 hours. Heat treatment is performed after annealing.
つぎに電子ビーム本溶接は２鮒ｉ−１にｒ‐Ｆｅ基耐熱
合金より成る第１部材のパタリング被覆部２０と１次ｒ
マルテンサィト系耐熱鋼より成る第２部材のパタリング
被覆部２２との溶接なので、ＳＵＳ３０８同一材間の熔
接であり容易に電子ビーム溶接が実施できる。第５図は
電子ビームで溶接すべき板厚と、電子ビーム溶接の熱に
よって２脚ｉ−１＄ｒ−Ｆｅ基耐熱合金より成る第１部
材および１にｒマルテンサィト系耐熱鋼より成る第２部
材に発生する割れを防止するために有効なパタリング被
覆部厚さとの関係である。Next, electron beam main welding is performed on the two carp i-1 to the patterned covering part 20 of the first member made of r-Fe-based heat-resistant alloy and the primary r
Since the second member made of martensitic heat-resistant steel is welded to the puttering covering portion 22, the welding is between the same SUS308 materials, and electron beam welding can be easily performed. Figure 5 shows the thickness of the plates to be welded by electron beam and the heat of electron beam welding. This is the relationship between the thickness of the puttering coating and the effective thickness for preventing cracks occurring in the member.
すなわち割れを防止するために必要なパタリング被覆部
の厚さｔＢ（側）は、電子ビームで溶接すべき２種の異
種部材６，８の板厚をいずれもｔ（肋）とすると、それ
ぞれに対して下記ｍ，■式で与えられる。２磯ｉ−１皮
ｒ−Ｆｅ基耐熱合金より成る第１部材のパタリング被覆
部厚さｔＢ，之２．１十０．０１５上（側）
，．．ｍ１本ｒマルテンサィト系耐熱鋼より成る
第２部材のパタリング被覆部厚さｔＢ２ ２４．１十０
．０１５ｔ（側）．・・【２｝ここにｔは溶接すべき第
１、第２部材の厚さで２０Ｓｔミ３００（柵）つまり電
子ビームで溶接すべき板厚範囲を２０ミｔＳ３００（側
）とした場合、２磯ｉ−１皮ｒ−Ｆｅ基耐熱合金より成
る第１部材６については｛１）式を満足すべき領域２６
のパタリング被覆部厚さｔ８，があれば、電子ビーム溶
接時の最高到達温度は割れ発生温度以下なので高温割れ
は発生しない。In other words, the thickness tB (side) of the puttering coating required to prevent cracking is given by It is given by the following m, ■ formula. 2 Iso i-1 skin r-Puttering coating thickness tB of the first member made of Fe-based heat-resistant alloy, no. 2.1-0.015 upper (side)
、． ．． m 1 piece r Thickness of the patter coating of the second member made of martensitic heat-resistant steel tB2 24.100
．． 015t (side). ...[2}Here, t is the thickness of the first and second members to be welded, 20 mm 300 (fence), that is, if the plate thickness range to be welded with an electron beam is 20 mm S300 (side), 2 For the first member 6 made of Iso i-1 skin r-Fe-based heat-resistant alloy, the region 26 where formula {1) is satisfied
If the thickness of the puttering coating is t8, the highest temperature reached during electron beam welding is below the cracking temperature, so hot cracking will not occur.
１本ｒマルテンサィト系耐熱鋼より成る第２部材８につ
いてはｔ２ー式を満足すべき領域２８のパタリング被覆
部厚さｔＢ２があれば電子ビーム溶薮時の最高到達温度
はオーステナィト変態温度以下なので硬化による割れは
発生しない。As for the second member 8 made of heat-resistant martensitic steel, if the thickness of the patterned coating in the region 28 is tB2, which satisfies the t2-formula, the maximum temperature reached during electron beam melting is below the austenitic transformation temperature. No cracking occurs due to hardening.
実施例
２磯ｉ−１弦ｒ−Ｆｅ基耐熱合金のＡ２８６とＩＸｒマ
ルテンサィト系耐熱鋼の日４６からなるタービンロータ
ーの異種材継手を下記の条件で製作した。Example 2 A dissimilar material joint for a turbine rotor made of A286, an Iso i-1 string r-Fe-based heat-resistant alloy, and Hi-46, an IXr martensitic heat-resistant steel, was manufactured under the following conditions.
母材溶接部の板厚：いずれも６５肌
【ィーＡ２８６のパタリング溶接
入熱３６００Ｊｏｕｌｅ／伽のＴＩＧ溶接溶加剤；ＳＵ
Ｓ３０横綱
パタリング被覆部の厚さ；３．５肌
‘ロ｝日４６のパタリング溶接
４００こ○の予熱前処理後ＴＩＧ溶接
溶加剤：ＳＵＳ３０母鋼
パタリング熔接の厚さ；５．５側
６２５ｑｏにて３時間の後熱処理
し一電子ビーム溶接
加圧電圧；１５０ＫＶ
ビーム電流；１８皿Ａ
溶接速度：４０伽／ｍｉｎ
その結果、溶接割れの存在しない健全な異種材継手を得
ることができた。Plate thickness of base metal welding part: All 65 skin [A286 puttering welding heat input 3600 Joule/TIG welding filler agent; SU
Thickness of S30 Yokozuna puttering coating: 3.5 skins after preheating and pre-treatment of 400 pieces of puttering welding on 46 days After 3 hours of heat treatment, electron beam welding was carried out using electron beam welding pressure voltage: 150 KV, beam current: 18 plates A, welding speed: 40 k/min, and as a result, a sound dissimilar material joint with no weld cracks could be obtained.
このような方法によって、２州ｉ−１にｒ−Ｆｅ基耐熱
合金と１本ｒマルテンサィト系耐熱鋼の異種材継手を直
接電子ビーム溶接した場合には従来不可避であった溶着
金属割れ、２鮒ｉ−１＄ｒ−Ｆｅ基耐熱合金熱影響部の
割れ、および１次ｒマルテンサィト系耐熱鋼影響部の硬
化割れ等の欠陥を防止することによって、従来不可能視
された２磯ｉ−１＄ｒ−Ｆｅ基耐熱合金と１にｒマルテ
ンサィト系耐熱鋼の異種材継手の電子ビーム溶接による
接合を可能にした。By such a method, weld metal cracking, which was conventionally unavoidable, was avoided when a dissimilar material joint of r-Fe-based heat-resistant alloy and one r-martensitic heat-resistant steel was directly electron beam welded to 2-I-1. By preventing defects such as cracks in the heat-affected zone of the carp i-1$r-Fe-based heat-resistant alloy and hardening cracks in the affected zone of the primary r-martensitic heat-resistant steel, we can improve the It has become possible to join dissimilar materials joints of 1$r-Fe-based heat-resistant alloy and 1-r martensitic heat-resistant steel by electron beam welding.
さらに本発明によって可能になった電子ビーム継手は、
従来のフランジ構造によって製作された継手に比較して
、次の如き効果がある。‘ィー 継手構造が簡素化され
る。Furthermore, the electron beam joint made possible by the present invention is
Compared to joints manufactured using conventional flange structures, it has the following effects. The joint structure is simplified.
（ｏ｝ 継手の製作工程が短縮する。(o) The manufacturing process of the joint is shortened.
し一 材料が節約できる。Shiichi: Materials can be saved.
に｝ 製品の重量が軽減する。} The weight of the product is reduced.
本発明は２磯ｉ−１＆ｒ−Ｆｅ基耐熱合金とＩＸｒマル
テンサィト系耐熱鋼の異種材継手のみならず、本発明に
よる接合方法は溶接上問題点の多いその他の高級耐熱鋼
の異種材継手についても広く応用できることは明らかで
ある。The present invention is applicable not only to dissimilar material joints of 2iso i-1&r-Fe-based heat-resistant alloys and IXr martensitic heat-resistant steels, but also to dissimilar material joints of other high-grade heat-resistant steels that have many problems in welding. It is clear that it can also be widely applied.
第１図は電子ビーム溶接による異種材継手の一般的溶接
断面図、第２図は２鮒ｉ−１にｒ−Ｆｅ基合金と１次ｒ
マルテンサイト系耐熱鋼の異種材継手の一般的方法によ
る電子ビーム溶接断面図、第３図はインサートメタルを
使用する場合を示し、第４図は本発明による電子ビーム
溶接断面図、第５図は電子ビーム溶接をすべき板の板厚
とパタリング被覆部厚さの関係図である。
６……２鮒ｉ−１＆ｒ‐Ｆｅ基耐熱合金、８……ＩＸｒ
マルテンサィト系耐熱鋼、２０……２鮒ｉ−１やｒ−Ｆ
ｅ基耐熱合金溶接面のパタリング被覆部、２２……１次
ｒマルテンサィト系耐熱鋼溶接面のパタリング被覆部、
２４・・・・・・電子ビーム溶接ビート、２６・・…・
２鮒ｉ−１＆ｒ−Ｆｅ基耐熱合金熔接面のパタリング被
覆部厚さ領域、２８……１にてマルテンサィト系耐熱鋼
溶接面のパタリング被覆部厚さ領域。
第１図
第２図
第３図
第４図
第５図Figure 1 is a general welding cross-sectional view of a joint of dissimilar materials by electron beam welding, and Figure 2 is a welding cross-sectional view of a joint of dissimilar materials made by electron beam welding.
FIG. 3 is a cross-sectional view of electron beam welding using a general method for joints of dissimilar materials of martensitic heat-resistant steel. FIG. 4 is a cross-sectional view of electron beam welding according to the present invention. FIG. FIG. 3 is a diagram showing the relationship between the thickness of a plate to be subjected to electron beam welding and the thickness of a puttering coating. 6...2 Carp i-1&r-Fe-based heat-resistant alloy, 8...IXr
Martensitic heat-resistant steel, 20...2 carp i-1 and r-F
Puttering covering part of e-base heat-resistant alloy welding surface, 22...Puttering covering part of primary r-martensitic heat-resistant steel welding surface,
24...Electron beam welding beat, 26...
2 carp i-1&r-Puttering coating thickness area of Fe-based heat-resistant alloy welding surface, 28...1, puttering coating thickness area of martensitic heat-resistant steel welding surface. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5
Claims (1)
部材と１２Ｃｒマルテンサイト系耐熱鋼より成る第２部
材との異種材継手の電子ビーム溶接による接合方法にお
いて、前記第１、第２部材の溶接面に下記（１）式およ
び（２）式を満足する範囲にＪＩＳＧ４３０３ＳＵＳ３
０８鋼をＴＩＧ溶接にてパタリング溶接する工程と、前
記パタリング溶接された第１、第２部材を電子ビーム溶
接する工程と、を有して成ることを特徴とする電子ビー
ム溶接による異種材継手の接合方法。 ｔ＿Ｂ＿１≧２．１＋０．０１５ｔ……（１）ｔ＿Ｂ＿
２≧４．１＋０．０１５ｔ……（２）ここにｔ＿Ｂ＿１
，ｔ＿Ｂ＿２はそれぞれ第１部材、第２部材溶接面に対
するパタリング溶接厚さ ｔは溶接材の板厚[Claims] 1. A first comprising a 26Ni-15Cr-Fe-based heat-resistant alloy.
In a method of joining a dissimilar material joint by electron beam welding between a member and a second member made of 12Cr martensitic heat-resistant steel, the welding surfaces of the first and second members satisfy the following formulas (1) and (2): JISG4303SUS3 within the range
A joint of dissimilar materials by electron beam welding, comprising the steps of pattern-welding 08 steel by TIG welding, and electron beam welding the pattern-welded first and second members. Joining method. t_B_1≧2.1+0.015t...(1) t_B_
2≧4.1+0.015t……(2) t_B_1 here
, t_B_2 are the patter welding thicknesses t for the welding surfaces of the first member and the second member, respectively, and the plate thickness of the welding material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5161179A JPS603912B2 (en) | 1979-04-25 | 1979-04-25 | Method for joining dissimilar materials by electron beam welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5161179A JPS603912B2 (en) | 1979-04-25 | 1979-04-25 | Method for joining dissimilar materials by electron beam welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55144390A JPS55144390A (en) | 1980-11-11 |
| JPS603912B2 true JPS603912B2 (en) | 1985-01-31 |
Family
ID=12891693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5161179A Expired JPS603912B2 (en) | 1979-04-25 | 1979-04-25 | Method for joining dissimilar materials by electron beam welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS603912B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2344549A (en) * | 1998-12-02 | 2000-06-14 | Siemens Plc | Welding method for two different types of steel |
| WO2016083573A1 (en) * | 2014-11-28 | 2016-06-02 | General Electric Technology Gmbh | Fluid conduit element and method for producing the fluid conduit element |
-
1979
- 1979-04-25 JP JP5161179A patent/JPS603912B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55144390A (en) | 1980-11-11 |
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