JPS62289376A - Joining method for al or al base alloy and al base composite material - Google Patents
Joining method for al or al base alloy and al base composite materialInfo
- Publication number
- JPS62289376A JPS62289376A JP13302186A JP13302186A JPS62289376A JP S62289376 A JPS62289376 A JP S62289376A JP 13302186 A JP13302186 A JP 13302186A JP 13302186 A JP13302186 A JP 13302186A JP S62289376 A JPS62289376 A JP S62289376A
- Authority
- JP
- Japan
- Prior art keywords
- base
- composite material
- alloy
- metal
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 239000000956 alloy Substances 0.000 title claims abstract description 27
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 14
- 238000005304 joining Methods 0.000 title claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 31
- 238000003466 welding Methods 0.000 claims abstract description 24
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 abstract description 18
- 229910052751 metal Inorganic materials 0.000 abstract description 10
- 239000002184 metal Substances 0.000 abstract description 10
- 239000010953 base metal Substances 0.000 abstract description 6
- 239000000945 filler Substances 0.000 abstract description 6
- 239000011159 matrix material Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000004927 fusion Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011208 reinforced composite material Substances 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910018182 Al—Cu Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004453 electron probe microanalysis Methods 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
［ａ業上の利用分野］
本発明はＡｌ又はＡｌ基合金とＡｌ基複合材料の溶接方
法に関し、詳細にはＡｌ基複合材料に高熱を与えて焦損
が発生するのを防止しつつ、しかも溶接割れや融合不良
等を生じない溶接部を形成することのできるＴｌａｍ接
方法に関するものである。Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Application in Industry A] The present invention relates to a method of welding Al or an Al-based alloy and an Al-based composite material, and specifically relates to a method for welding Al-based composite material with high heat. The present invention relates to a Tlam welding method that can form welds that do not cause weld cracks or fusion defects while preventing the occurrence of focal loss.
［従来の技術］
海洋開発や宇宙開発が進むにつれて優れた特性を有する
複合材料の開発が望まれる様になり、例えば分散強化型
複合材料９粒子強化型複合材料。[Prior Art] As ocean development and space development progress, it has become desirable to develop composite materials with excellent properties, such as dispersion-strengthened composite materials and 9-particle reinforced composite materials.
ｆａ維強化型複合材料等が製造される様になってきた。Fiber-reinforced composite materials and the like have come to be manufactured.
また金属系複合材料の分野では、スチール繊維強化アル
ミニウムやカーボン繊維強化アルミニウム等の繊維強化
合金（Ｆｉｂｅｒ Ｒｅ１ｎｆｏｒｃｅｄ Ｍｅｔａｌ
ｓ：ＦＲＭ）やＳｉＣウィスカ強化アルミニウム等のウ
ィスカ強化合金（ＷＲＭ）が耐熱材料や軽量構造材料用
として製造されるに至っている。In addition, in the field of metal composite materials, fiber reinforced metals such as steel fiber reinforced aluminum and carbon fiber reinforced aluminum are used.
Whisker-reinforced alloys (WRM) such as SiC whisker-reinforced aluminum (S:FRM) and SiC whisker-reinforced aluminum have come to be manufactured as heat-resistant materials and lightweight structural materials.
［発明が解決しようとする問題点］
上記ＦＲＭやＷＲＭのマトリックス材としては軽量性が
着目されてＡｌ基合金が汎用されている為、Ａｌ溶接の
一般的困難性もあって溶接手段については確立されてお
らず、Ａｌ基複合材料とＡｌ又はＡｌ基合金を接合する
方法は専ばら機械的接合に頚よっているというのが実態
である。ところがボルト・ナツトやリベット等を使用す
る機械的接合においては、母材同士の密着一体性が不十
分であり気密性、熱伝導、電気伝導等の面において優れ
た性能を得ることは困難である。[Problems to be solved by the invention] Al-based alloys are widely used as matrix materials for FRMs and WRMs due to their light weight, and due to the general difficulty of Al welding, welding methods have not been established. The reality is that methods for joining Al-based composite materials and Al or Al-based alloys rely exclusively on mechanical joining. However, in mechanical joining using bolts, nuts, rivets, etc., the adhesion and integrity of the base materials is insufficient, making it difficult to achieve excellent performance in terms of airtightness, heat conduction, electrical conduction, etc. .
そこで本発明者らはＡｌ基複合材料の製造方法から類推
して、Ａｌ基複合材料とＡＩ又はＡｌ基合金の接合には
拡散接合法が適用できるのではないかと考え、色々検討
したが、該接合方法で接合できる母材の大きさや形状に
は制限が有り、また設備が巨大となるため現実的でない
ことが分かった。Therefore, by analogy with the manufacturing method of Al-based composite materials, the present inventors thought that the diffusion bonding method could be applied to bonding Al-based composite materials and AI or Al-based alloys, and after various studies, it was found that It was found that this method is not practical because there are restrictions on the size and shape of the base materials that can be joined using the joining method, and the equipment would be huge.
このようなところから本発明者らはＡｌ又はＡｌ基合金
とＡｌ基複合材料を接合するに当たり、Ａｌ基複合材料
の特性に悪影響を与えることなく、しかも健全で強固な
溶接部を与えることかできる様な溶接方法を開発すべく
種々研究を行なった結果、本発明方法を完成させるに至
った。From this point of view, the present inventors were able to provide a sound and strong welded joint when joining Al or Al-based alloy and Al-based composite material without adversely affecting the properties of the Al-based composite material. As a result of conducting various studies to develop various welding methods, we have completed the method of the present invention.
［問題点を解決するための手段］
上記目的を達成し得た本発明の溶接方法は、ＴＩＧアー
クのねらい位置をＡｌ又はＡｌ基合金側とし、溶融され
たＡＩ又はＡｌ合金をＡｌ基複合材料に融着させること
によって溶接する点を要旨とするものである。[Means for Solving the Problems] The welding method of the present invention, which has achieved the above object, aims the TIG arc at the side of Al or Al-based alloy, and transfers the molten AI or Al alloy to the Al-based composite material. The gist of this is that welding is performed by fusion bonding.
［作用コ
本発明ではＡｌ又はＡｌ基合金材料とＡｌ基複合材料と
を母材とし、ＡＩ又はＡｌ基合金を溶加材としてＴＩＧ
溶接を行なう、このときアークのねらい位置はＡｌ又は
Ａｌ基合金材料側とし、アーク熱により主としてＡｌ又
はＡｌ基合金材料及び溶加材を溶融させ、該溶融金属の
熱によってＡｌ基複合材料のマトリックス材を溶かして
両母材を接合する。仮にアークねらい位置がＡｌ基複合
材料側にあると、アーク熱によって複合成分が破壊され
てしまい溶接接合部付近で強度不足等の不具合を引き起
こす。ただしＡｌまたはＡｌ基合金の溶融熱によってＡ
ｌ基複合材料の開先表面を少し溶融させる程度であれば
、マトリックス材を溶融するに止まりＡｌ基複合材料の
特性に悪影グを与えることはない。またアークのねらい
位置を母材境界面よりＡｌ又はＡｌ基合金側へ違去けす
ぎるとＡｔ基複合材料のマトリックス材の溶融が十分に
行なわれず融合不良を生じてしまう。[Function] In the present invention, Al or an Al-based alloy material and an Al-based composite material are used as a base material, and AI or an Al-based alloy is used as a filler material to perform TIG.
Welding is performed. At this time, the arc is aimed at the Al or Al-based alloy material side, and the arc heat mainly melts the Al or Al-based alloy material and the filler metal, and the heat of the molten metal melts the matrix of the Al-based composite material. Both base materials are joined by melting the materials. If the arc aiming position is on the Al-based composite material side, the composite component will be destroyed by the arc heat, causing problems such as insufficient strength near the weld joint. However, due to the heat of fusion of Al or Al-based alloy, A
If the groove surface of the Al-based composite material is slightly melted, the matrix material will only be melted and the properties of the Al-based composite material will not be adversely affected. Furthermore, if the aiming position of the arc is too far away from the base metal interface toward the Al or Al-based alloy side, the matrix material of the At-based composite material will not be sufficiently melted, resulting in poor fusion.
またＭＩＧ溶接では溶融金属の温度がＴＩＧ溶接の場合
に比べて高くなり、強化材の分解や強化材の劣化等を引
き起こし、溶接部性状は劣化されたものとなる。Furthermore, in MIG welding, the temperature of the molten metal is higher than in TIG welding, causing decomposition of the reinforcing material, deterioration of the reinforcing material, etc., and the properties of the welded part are deteriorated.
［実施例］
第１図は本発明に係るＴＩＧ溶接の例を示す説明図であ
り、板厚３ｍｍのＳｉＣウィスカ／Ａ６０６１強化複合
材料１ｂと同じ厚さのＡ６０６１合金１ａを突合せ、境
界面１１の下側に裏当材８を配設する。尚符号２は溶接
トーチを示す。交流電源５によって電極３と母材との間
にアーク１０を発生させると溶加材４及びＡ６０６１合
金母材１ａが溶融され溶融ブール９が形成される。尚符
号１２はシールドガスを示し、以下の実施例では１２１
／分のＡｒガスを供給することとする。[Example] FIG. 1 is an explanatory diagram showing an example of TIG welding according to the present invention, in which a SiC whisker/A6061 reinforced composite material 1b with a plate thickness of 3 mm and an A6061 alloy 1a with the same thickness are butted, and the interface 11 is A backing material 8 is arranged on the lower side. Note that the reference numeral 2 indicates a welding torch. When an arc 10 is generated between the electrode 3 and the base material by the AC power source 5, the filler metal 4 and the A6061 alloy base material 1a are melted to form a molten boule 9. Note that the reference numeral 12 indicates a shielding gas, and in the following examples, 121
It is assumed that Ar gas is supplied at a rate of /min.
第１図に示した溶接装置を用い、溶接条件を各種変更し
てＴ Ｉ Ｇｉ’９接を行なったところ、第１表に示す
様な結果が得られた。When T I Gi'9 welding was performed using the welding apparatus shown in FIG. 1 and various welding conditions changed, the results shown in Table 1 were obtained.
第３図は第１表の実験Ａにおいて得られた溶接部の金属
組織を示す図面代用顕微鏡写真であり、左側が溶接金属
部、右側がＡｌ基複合材料１ｂであり、良好な接合状態
を示している。また第４図（ａ）〜（ｅ）は上記溶接部
のＥ Ｐ Ｍ Ａ分析（Ｘ線マイクロアナ、ライザ）の
結果を示す図面代用顕微鏡写真であり、（ａ）〜（ｅ）
の順に組成像、Ａｌ．Ｓｉ、Ｍｇ、Ｃの各分析結果を示
し、やはり良好な接合状態を示している。Figure 3 is a photomicrograph substituted for a drawing showing the metal structure of the welded part obtained in Experiment A in Table 1. The left side is the welded metal part, and the right side is the Al-based composite material 1b, showing a good bonding state. ing. Furthermore, FIGS. 4(a) to 4(e) are micrographs substituted for drawings showing the results of EPM A analysis (X-ray microanalyzer, riser) of the above-mentioned welded part, and (a) to (e)
Composition image, Al. The results of each analysis of Si, Mg, and C are shown, and a good bonding state is also shown.
これらの結果からアークねらい位置を境界面真上に定め
た場合やＭＩＧ溶接では健全な溶接部を得ることはでき
ないことが分かる。またアークの広がりを考慮した場合
アーク長は５ｍｍ以下とすることが好ましく、この範囲
であれば複合材料を損傷させることはなく、溶接部に脆
弱な金属化合物を形成することはない。前記実験Ａにお
いて得られた？８接部から第２図に示すＪＩＳＳ号（余
盛有）の試験片を得て引張試験を行なったところ、Ａ６
０６１合金の溶接熱影響部の軟化部で破断し、溶接部が
健全であることが確認された。母材同士の突き合わせ部
構造は第１図に示した工型開先に限定されず、■型、Ｕ
型、Ｙ型し型等であってもよく、ルートギャップは両母
材が融合される範囲であれば良い。From these results, it is clear that a sound weld cannot be obtained when the arc aiming position is set directly above the boundary surface or by MIG welding. Further, in consideration of the spread of the arc, it is preferable that the arc length is 5 mm or less, and within this range, the composite material will not be damaged and a brittle metal compound will not be formed in the welded part. Obtained in experiment A above? When a tensile test was performed on a JISS No. 2 test piece shown in Figure 2 from the 8-joint part, it was found that it was A6.
The fracture occurred at the softened part of the weld heat affected zone of the 061 alloy, and it was confirmed that the weld was sound. The structure of the butt part between the base materials is not limited to the mold groove shown in Fig.
It may be a shape, a Y shape, etc., and the root gap may be within a range where both base materials can be fused.
前記した実施例では溶加材としてＡｌ−５％Ｍｇ合金を
用いたが、純Ａｌ材や他のＡｌ基合金材を使用しても良
く、溶加材はＡｌ基複合材料のマトリックス材のＡｌ基
合金材質に合わせて選択すれば良く、例えばマトリック
ス材がＡｌ−Ｃｕ合金の場合には溶加材としてＡＩ−８
％ＣｕやＡｌ−５％Ｓｉ合金を適用するといったことが
できる。Although an Al-5%Mg alloy was used as the filler material in the above embodiments, pure Al material or other Al-based alloy materials may also be used. It may be selected according to the base alloy material. For example, if the matrix material is an Al-Cu alloy, AI-8 is used as the filler material.
%Cu or Al-5%Si alloy can be applied.
［発明の効果コ
本発明方法によりＡＩ又はＡｌ基合金とＡｌ基複合材料
との溶接に際して健全な溶接部が形成されるので母材同
士の強固な接合を得ることが可能となり、熱伝導や電気
伝導に問題のない一体的な接合部が得られることとなっ
た。また簡易な溶接装置及び設備によって現場で簡単に
施工できるので汎用性は著しく高い。[Effects of the Invention] By the method of the present invention, a sound weld is formed when welding AI or Al-based alloy and Al-based composite material, so it is possible to obtain a strong bond between the base materials, and it is possible to improve heat conduction and electricity. This resulted in an integrated joint with no problems with conduction. Furthermore, it can be easily constructed on-site using simple welding equipment and equipment, making it extremely versatile.
第１図は本発明によるＴＩＧ溶接の例を示す説明図、第
２図は溶接部引張試験に用いる試験片の形状を示す説明
図、第３図は本発明によって形成された溶接部の金属組
成を示す図面代用顕微鏡写真、第４図（ａ）〜（ｅ）は
本発明によフて形成された溶接部のＥＰＭＡ分析結果を
示す図面代用顕微鏡写真である。FIG. 1 is an explanatory diagram showing an example of TIG welding according to the present invention, FIG. 2 is an explanatory diagram showing the shape of a test piece used for a weld zone tensile test, and FIG. 3 is an explanatory diagram showing the metal composition of a weld zone formed according to the present invention. FIGS. 4(a) to 4(e) are micrographs substituted for drawings showing the results of EPMA analysis of a welded portion formed according to the present invention.
Claims (1)
り、ＴＩＧアークのねらい位置をＡｌ又はＡｌ基合金側
とし、溶融されたＡｌ又はＡｌ合金をＡｌ基複合材料に
融着させることによって溶接することを特徴とするＡｌ
又はＡｌ基合金とＡｌ基複合材料の接合方法。When welding Al or Al-based alloy and Al-based composite material, weld by aiming the TIG arc at the Al or Al-based alloy side and fusing the molten Al or Al alloy to the Al-based composite material. Al characterized by
Or a method for joining an Al-based alloy and an Al-based composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13302186A JPS62289376A (en) | 1986-06-09 | 1986-06-09 | Joining method for al or al base alloy and al base composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13302186A JPS62289376A (en) | 1986-06-09 | 1986-06-09 | Joining method for al or al base alloy and al base composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62289376A true JPS62289376A (en) | 1987-12-16 |
Family
ID=15094940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13302186A Pending JPS62289376A (en) | 1986-06-09 | 1986-06-09 | Joining method for al or al base alloy and al base composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62289376A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008246558A (en) * | 2007-03-30 | 2008-10-16 | Kobe Steel Ltd | Butt-weld joint of dissimilar material of plated steel plate and aluminum alloy plate, and its joining method |
| JP2008296270A (en) * | 2007-06-04 | 2008-12-11 | Kyushu Institute Of Technology | Butt tig welding method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58188585A (en) * | 1982-04-30 | 1983-11-04 | Hitachi Ltd | Joining method of al material and dissimilar metallic material |
| JPS60118389A (en) * | 1983-12-01 | 1985-06-25 | Sumitomo Light Metal Ind Ltd | Joining method of aluminum-titanium by arc welding |
-
1986
- 1986-06-09 JP JP13302186A patent/JPS62289376A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58188585A (en) * | 1982-04-30 | 1983-11-04 | Hitachi Ltd | Joining method of al material and dissimilar metallic material |
| JPS60118389A (en) * | 1983-12-01 | 1985-06-25 | Sumitomo Light Metal Ind Ltd | Joining method of aluminum-titanium by arc welding |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008246558A (en) * | 2007-03-30 | 2008-10-16 | Kobe Steel Ltd | Butt-weld joint of dissimilar material of plated steel plate and aluminum alloy plate, and its joining method |
| JP2008296270A (en) * | 2007-06-04 | 2008-12-11 | Kyushu Institute Of Technology | Butt tig welding method |
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