JP3836589B2 - Aluminum alloy studs joined to the base metal by stud welding - Google Patents

Aluminum alloy studs joined to the base metal by stud welding Download PDF

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JP3836589B2
JP3836589B2 JP35592297A JP35592297A JP3836589B2 JP 3836589 B2 JP3836589 B2 JP 3836589B2 JP 35592297 A JP35592297 A JP 35592297A JP 35592297 A JP35592297 A JP 35592297A JP 3836589 B2 JP3836589 B2 JP 3836589B2
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Prior art keywords
stud
welding
alloy
aluminum alloy
base material
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JPH10280079A (en
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俊哉 岡田
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Furukawa Sky Aluminum Corp
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Furukawa Sky Aluminum Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、溶接強度に優れ、また美麗な外観が広い溶接条件範囲で得られるスタッド溶接によって母材に接合されるアルミニウム合金製スタッドに関する。
【0002】
【従来の技術】
近年、生活環境、都市環境の美化、整備、改善のための活動が行政や企業で活発に進められている。たとえば、街のイメージアップのため、駅舎やビルなどには美麗なアルミニウム合金製外装パネルが多用されるようになってきている。
このような外装パネルはボルトにより取付けられ、該ボルトは、予めパネルの裏面に溶接しておいて、パネル取付け作業の効率化が図られている。前記溶接にはスタッド溶接が多用され、このように溶接して用いられるボルトはスタッドと呼ばれる。図1は、前記スタッド10をパネル20にスタッド溶接した状態を示す斜視図である。
スタッド溶接は、スタッドと母材(パネル)を近接させ、スタッドを電極として母材との間にアークを点孤して両近接面を溶融し加圧して接合する方法で、アーク溶接電源を用いたアーク放電型とコンデンサを用いたコンデンサ放電型とがある。前者は太径のスタッドに適し、後者は細径のスタッドに適する。いずれも操作が簡単で熟練を要さず、短時間で溶接できるという利点がある。
しかし、外装パネルは建築物の一部のため、溶接強度が高く安全なこと、溶接部のパネル表面が美麗で、焼付き、傷、凹凸などがないことが要求される。
ところで、外装パネルには建築物の仕様に合わせて様々な合金板が用いられ、ボルトにはJIS−A1050合金が多用され、一部にJIS−A5052合金またはJIS−A5056合金が用いられている。
【0003】
この他、アルミニウム合金製スタッドとしては、溶鋼の連続鋳造鋳型の溶鋼に接する銅板とその外側のバックプレートとを締付けるためのジュラルミン系合金(Al−4.1〜4.3wt%Cu−1.2〜1.6wt%Mg−0.6wt%Mn合金)のスタッドが知られている(特開昭62−89553号)。
【0004】
【発明が解決しようとする課題】
しかし、前記JIS−A1050合金製スタッドは、溶接条件が多少変動しても溶接が適正になされるが、溶接強度が低いため溶接箇所を多く必要としコスト高になるという問題がある。他方JIS−A5052合金やJIS−A5056合金などのスタッドは溶接強度は高いが、適正な溶接条件の範囲が狭く外観不良が生じ易いという問題がある。
本発明は、溶接強度がJIS−A1050合金より十分高く、かつ溶接条件が多少変動しても外観不良が生じないスタッドの提供を目的とする。
【0005】
【課題を解決するための手段】
請求項1記載の発明は、Mgを2.0〜5.0wt%含有し、残部がアルミニウムおよび不可避不純物からなることを特徴とするスタッド溶接によって母材に接合されるアルミニウム合金製スタッドである。
【0006】
請求項2記載の発明は、Mgを2.0wt%を超え5.0wt%以下含有し、0.90wt%以下のCuと、総含有量が0.05〜0.90wt%のMn、Cr、Zn、Ti、Zr、Ni、B、V、Agの(i)元素群と、総含有量が0.90wt%以下のSi、Feの(ii)元素群とからなる選択元素のうちの少なくとも1元素を含有し、残部がアルミニウムおよび不可避不純物からなることを特徴とするスタッド溶接によって母材に接合されるアルミニウム合金製スタッドである。
【0007】
【発明の実施の形態】
請求項1記載の発明において、Mgは溶接強度を向上させる。その含有量を2.0〜5.0wt%に規定する理由は、2.0wt%未満ではその効果が十分に得られず、5.0wt%を超えると適正な溶接条件の範囲が狭くなるためである。特に望ましいMgの含有量は3.0〜4.0wt%である。
【0008】
請求項2記載の発明において、Mgは溶接強度を向上させる。その含有量を2.0wt%を超え5.0wt%以下に規定する理由は、2.0wt%以下ではその効果が十分に得られず、5.0wt%を超えると適正な溶接条件の範囲が狭くなるためである。特に望ましいMgの含有量は3.0〜4.0wt%である。
【0009】
この発明では、前記Al−Mg系合金に、Cu、Mn、Cr、Zn、Ti、Zr、Ni、B、V、Ag、Si、Feの選択元素のうちの少なくとも1種を含有させて溶接強度などをさらに向上させる。
前記Cuの含有量を0.90wt%以下に規定する理由は、Cuが0.90wt%を超えて含有されると耐食性、溶接性、および加工性が低下するためであり、特には0.1wt%以下が望ましい。
前記Mn、Cr、Zn、Ti、Zr、Ni、B、V、Agの▲1▼元素群の各元素はいずれも溶接強度を高め、さらに耐応力腐食割れ性、および結晶組織微細化による溶接性なども向上させる。これら元素の含有量を総計で0.05〜0.90wt%に規定する理由は、0.05wt%未満ではその効果が十分に得られず、0.90wt%を超えると巨大な晶出物が生成し、強度、靱性、または加工性が低下するためである。これら元素の特に望ましい含有量は0.1〜0.3wt%である。
前記Si、Feの▲2▼元素群の総含有量を0.90wt%以下に規定する理由は、0.90wt%を超えると加工性、成形性、靱性、耐食性などが著しく低下するためであり、特には0.4wt%以下が望ましい。
【0010】
【実施例】
以下に本発明を実施例により詳細に説明する。
(実施例1)
アルミニウム地金にMgを2.0〜5.0wt%添加した合金溶湯(表1のNo. 1 〜7 に示す組成)を半連続鋳造法によりビレットに鋳造し、このビレットを常法によりスタッド(外径M6、長さ20mm)に加工した。
【0011】
(実施例2)
アルミニウム地金にMgを2.0wt%を超え5.0wt%以下添加し、さらにCu、Mn、Cr、Zn、Ti、Zr、Ni、B、V、Ag、Si、Fe、の少なくとも1元素を本発明の規定値内で種々の量添加した合金溶湯(表1〜3のNo.8〜26に示す組成)を半連続鋳造法によりビレットに鋳造し、このビレットを常法によりスタッド(外径M6、長さ20mm)に加工した。
【0012】
(比較例1)
Mgの添加量が本発明規定値外の合金溶湯(表3のNo.27,28に示す組成)を用いた他は、実施例2と同じ方法によりスタッドを加工した。
【0013】
得られた各々のスタッドを母材にスタッド溶接して溶接性を調査した。
母材にはJIS−A5052P−H34(Al−0.25wt%Si−0.4wt%Fe−0.1wt%Cu−0.1wt%Mn−2.5wt%Mg−0.25wt%Cr−0.1wt%Zn合金)の板材(3mm×50mm×50mm)を用いた。
スタッド溶接機にはコンデンサ放電型溶接機〔日本ドライブイット(株)製CD1000型〕を用いた。
溶接条件は、コンデンサ容量を64000μFと128000μFの2水準、電圧を80、90、100、110、120Vの5水準、パネルとスタッド間のギャップを2.5、3.0、3.5、4.0mmの4水準に取った。
各スタッド、各条件ごとに、10個ずつ溶接し、全数を外観検査(焼付き、傷、凹凸)したのち、5個を引張試験に、残りの5個をトルク試験に供した。
【0014】
検査または試験方法を下記に示す。
〔外観検査〕
外観検査項目のうち、焼付き、傷は、母材表面(溶接面と反対側の面)を目視観察して行い、凹凸は図2に示す表面検査装置を用いて行った(特願平7−279860号参照)。
前記表面検査装置は、試験片を取付ける円柱状の角度調整具20、前記角度調整具20を載置する支持具21、支持具外側壁面に取付けた角度表示板22、支持具21の底面に取付けた模様板23からなる。
角度調整具20を支持具21に形成された切欠部24に回転自在に載置する。試験体25は角度調整具20の中央部にその母材11の表面が模様板23に対し垂直になるように取付ける。ここで角度調整具20の端部に取付けた角度指示針26は角度表示板22の角度目盛り0に合わせておく。
試験体25を上から観察しながら、角度調整具20を母材11表面が上に向くように徐々に回転させる。母材11表面に凹凸があると、母材11表面で反射する模様板23の模様が歪んで見え、この歪みは、母材11表面の凹凸が大きい程、回転角度が小さいうちから見え始める。歪んで見え始めたときの回転角度で凹凸の大小を判定する。歪んで見え始める角度の平均値が2度以上のものを良好(○)、2度未満のものを不良(×)と判定した。
〔引張試験〕
図3に示すように、スタッド10の上部にナット12をねじ込み、ナット12と母材11を上部治具31と下部治具32の袋部にそれぞれ挿入し、各治具31,32 の基部33,34 を引張試験機のチャック35,36 に挟んで引張った。破断荷重の平均値が2.5kN以上のものを非常に良好(◎)、2.5kN未満、2.0kN以上のものを良好(○)、2.0kN未満のものを不良(×)と判定した。
〔トルク試験〕
図4に示すように、スタッド10の上部に、カーラー40と座がね41を介してナット12をねじ込み、これをトルクレンチ42を用いてスタッド10が破断するまでねじった。スタッド10が破断したときの最大トルク値の平均値が2.5N・m以上のものを非常に良好(◎)、2.5N・m未満、2.0N・m以上のものを良好(○)、2.0N・m未満のものを不良(×)と判定した。
比較のため、従来のJIS−A1050合金製スタッド、JIS−A5052合金製スタッド、およびJIS−A5056合金製スタッドについても同様の検査、試験を行った。
【0015】
コンデンサ容量が64000μF、電圧90V、ギャップ3.0mmのときの結果を表4、5に示す。また外観が良好となる電圧とギャップの許容条件範囲を表6に示す。
【0016】
【表1】

Figure 0003836589
【0017】
【表2】
Figure 0003836589
【0018】
【表3】
Figure 0003836589
【0019】
【表4】
Figure 0003836589
【0020】
【表5】
Figure 0003836589
【0021】
【表6】
Figure 0003836589
【0022】
表4〜6より明らかなように、本発明例のNo.1〜26はいずれも、広い溶接条件で良好な外観が得られ、引張強さおよび破断トルクが大きく、スタッドとして優れた特性を示した。ZnまたはCuなどを適量含有するものは引張強さ(溶接強度)などが一段と向上した。
他方、比較例のNo.27 はMgが少ないため強度が低く、No.28 はMgが多いため適正な溶接条件の範囲が狭くなった。また従来例の No.29〜31はいずれも適正な溶接条件の範囲が狭く実用性に欠けるものであった。
なお、本発明例のスタッドについて、別途、成形加工性や耐食性などを調べたところいずれも優れた特性を示した。中でもMn、Crなどの▲2▼元素群を含むものは結晶粒が微細なため特に優れた特性を示した。
【0023】
【発明の効果】
以上に述べたように、本発明のスタッドは、溶接強度に優れ、また適正な溶接条件範囲が広くとれる。さらにMn、Crなどの元素群を適量含むものは結晶粒が微細となり成形加工性や耐食性などが向上する。依って、建築物の外装パネルなどに用いて顕著な効果を奏する。
【図面の簡単な説明】
【図1】スタッドをパネル(母材)にスタッド溶接した状態を示す斜視図である。
【図2】外観検査装置の斜視説明図である。
【図3】溶接強度試験の側面説明図である。
【図4】トルク試験の側面説明図である。
【符号の説明】
10 スタッド
11 パネル(母材)
12 ナット
20 角度調整具
21 支持具
22 角度表示板
23 模様板
24 支持具の切欠部
25 試験体
26 角度指示針
31 上部治具
32 下部治具
33 上部治具の基部
34 下部治具の基部
35,36 引張試験機のチャック
40 カーラー
41 座がね
42 トルクレンチ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an aluminum alloy stud that is excellent in welding strength and is joined to a base material by stud welding that provides a beautiful appearance in a wide range of welding conditions.
[0002]
[Prior art]
In recent years, activities for beautification, maintenance, and improvement of the living environment and urban environment have been actively promoted by the government and companies. For example, beautiful aluminum alloy exterior panels are increasingly used in station buildings and buildings to improve the image of the city.
Such an exterior panel is attached with a bolt, and the bolt is welded to the back surface of the panel in advance to improve the efficiency of the panel attaching operation. Stud welding is frequently used for the welding, and the bolt used by welding in this way is called a stud. FIG. 1 is a perspective view showing a state in which the stud 10 is stud welded to the panel 20.
Stud welding is a method in which a stud and a base material (panel) are brought close to each other, an arc is spotted between the base material and the stud is used as an electrode, both adjacent surfaces are melted and pressed to join them, and an arc welding power source is used. Arc discharge type and capacitor discharge type using a capacitor. The former is suitable for large diameter studs, and the latter is suitable for small diameter studs. All have the advantage that they are easy to operate, require no skill, and can be welded in a short time.
However, since the exterior panel is a part of a building, it is required that the welding panel has high welding strength and is safe, the panel surface of the welded portion is beautiful, and there are no seizures, scratches, or irregularities.
By the way, various alloy plates are used for the exterior panel according to the specifications of the building, JIS-A1050 alloy is frequently used for the bolt, and JIS-A5052 alloy or JIS-A5056 alloy is used for a part thereof.
[0003]
In addition, as an aluminum alloy stud, a duralumin-based alloy (Al-4.1 to 4.3 wt% Cu-1.2 for fastening a copper plate in contact with molten steel of a continuous casting mold of molten steel and a back plate on the outer side thereof is used. -1.6 wt% Mg-0.6 wt% Mn alloy) is known (Japanese Patent Laid-Open No. 62-89553).
[0004]
[Problems to be solved by the invention]
However, the JIS-A1050 alloy stud can be properly welded even if the welding conditions vary somewhat. However, since the welding strength is low, there is a problem that many welding points are required and the cost is high. On the other hand, studs such as JIS-A5052 alloy and JIS-A5056 alloy have high welding strength, but there is a problem that the range of appropriate welding conditions is narrow and appearance defects tend to occur.
An object of the present invention is to provide a stud whose welding strength is sufficiently higher than that of JIS-A1050 alloy and which does not cause poor appearance even if the welding conditions fluctuate somewhat.
[0005]
[Means for Solving the Problems]
The invention according to claim 1 is an aluminum alloy stud joined to a base material by stud welding , characterized by containing 2.0 to 5.0 wt% of Mg and the balance being made of aluminum and inevitable impurities.
[0006]
Invention of Claim 2 contains Mg more than 2.0 wt% more than 2.0 wt%, 0.90 wt% or less Cu, and Mn, Cr with a total content of 0.05-0.90 wt%, At least one element selected from (i) element group of Zn, Ti, Zr, Ni, B, V and Ag and (ii) element group of Si and Fe having a total content of 0.90 wt% or less. It is an aluminum alloy stud joined to a base material by stud welding , which contains an element and the balance is made of aluminum and inevitable impurities.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
In the first aspect of the invention, Mg improves the welding strength. The reason why the content is specified to be 2.0 to 5.0 wt% is that the effect is not sufficiently obtained if it is less than 2.0 wt%, and the range of appropriate welding conditions is narrowed if it exceeds 5.0 wt%. It is. A particularly desirable Mg content is 3.0 to 4.0 wt%.
[0008]
In the invention described in claim 2, Mg improves the welding strength. The reason why the content is specified to exceed 2.0 wt% and 5.0 wt% or less is that the effect cannot be sufficiently obtained if the content is 2.0 wt% or less. This is because it becomes narrower. A particularly desirable Mg content is 3.0 to 4.0 wt%.
[0009]
In this invention, the Al—Mg alloy is made to contain at least one selected element of Cu, Mn, Cr, Zn, Ti, Zr, Ni, B, V, Ag, Si, and Fe, and the welding strength. Etc. are further improved.
The reason why the Cu content is specified to be 0.90 wt% or less is that when Cu exceeds 0.90 wt%, the corrosion resistance, weldability, and workability deteriorate, and particularly 0.1 wt%. % Or less is desirable.
Each element of the element group (1) of Mn, Cr, Zn, Ti, Zr, Ni, B, V, and Ag increases the welding strength, and further, the stress corrosion cracking resistance and the weldability by refining the crystal structure. And so on. The reason why the total content of these elements is specified to be 0.05 to 0.90 wt% is that the effect cannot be sufficiently obtained if the content is less than 0.05 wt%, and if the content exceeds 0.90 wt%, a huge crystallized product is formed. It is because it produces | generates and intensity | strength, toughness, or workability falls. A particularly desirable content of these elements is 0.1 to 0.3 wt%.
The reason why the total content of Si and Fe (2) element group is specified to be 0.90 wt% or less is that when it exceeds 0.90 wt%, workability, formability, toughness, corrosion resistance, etc. are significantly reduced. In particular, 0.4 wt% or less is desirable.
[0010]
【Example】
Hereinafter, the present invention will be described in detail with reference to examples.
Example 1
A molten alloy (composition shown in Nos. 1 to 7 in Table 1) in which Mg is added to aluminum ingots in an amount of 2.0 to 5.0 wt% is cast into a billet by a semi-continuous casting method. (Outer diameter M6, length 20 mm).
[0011]
(Example 2)
Mg is added to aluminum ingot in an amount of more than 2.0 wt% and less than 5.0 wt%, and at least one element of Cu, Mn, Cr, Zn, Ti, Zr, Ni, B, V, Ag, Si, Fe is added. A molten alloy (a composition shown in Nos. 8 to 26 in Tables 1 to 3) added in various amounts within the specified range of the present invention is cast into a billet by a semi-continuous casting method. M6, length 20 mm).
[0012]
(Comparative Example 1)
Studs were processed by the same method as in Example 2 except that an alloy melt (composition shown in Nos. 27 and 28 in Table 3) in which the added amount of Mg was outside the specified value of the present invention was used.
[0013]
Each of the obtained studs was stud welded to the base material, and the weldability was investigated.
As a base material, JIS-A5052P-H34 (Al-0.25 wt% Si-0.4 wt% Fe-0.1 wt% Cu-0.1 wt% Mn-2.5 wt% Mg-0.25 wt% Cr-0. A 1 wt% Zn alloy plate material (3 mm × 50 mm × 50 mm) was used.
As the stud welder, a capacitor discharge type welder (CD1000 type manufactured by Nippon Driveit Co., Ltd.) was used.
Welding conditions are as follows: capacitor capacity is 6 levels of 64000 μF and 128000 μF, voltage is 5 levels of 80, 90, 100, 110 and 120 V, and the gap between the panel and stud is 2.5, 3.0, 3.5, 4. 4 levels of 0 mm were taken.
For each stud and each condition, 10 pieces were welded, and all were subjected to appearance inspection (seizure, scratches, unevenness), 5 pieces were subjected to a tensile test, and the remaining 5 pieces were subjected to a torque test.
[0014]
The inspection or test method is shown below.
〔Visual inspection〕
Among the appearance inspection items, seizures and scratches were made by visually observing the surface of the base material (surface opposite to the welded surface), and irregularities were made using the surface inspection apparatus shown in FIG. 2 (Japanese Patent Application No. 7). -See 279860).
The surface inspection apparatus includes a columnar angle adjustment tool 20 for mounting a test piece, a support tool 21 on which the angle adjustment tool 20 is placed, an angle display plate 22 attached to the outer wall surface of the support tool, and a bottom face of the support tool 21. It consists of a patterned board 23.
The angle adjusting tool 20 is rotatably mounted on a notch portion 24 formed in the support tool 21. The test body 25 is attached to the central portion of the angle adjuster 20 so that the surface of the base material 11 is perpendicular to the pattern plate 23. Here, the angle indicator needle 26 attached to the end of the angle adjuster 20 is set to the angle scale 0 of the angle display plate 22.
While observing the test body 25 from above, the angle adjuster 20 is gradually rotated so that the surface of the base material 11 faces upward. If the surface of the base material 11 is uneven, the pattern of the pattern plate 23 reflected on the surface of the base material 11 appears to be distorted. This distortion starts to appear when the rotation angle is small as the surface of the base material 11 increases. The size of the unevenness is determined by the rotation angle when it starts to appear distorted. The average value of the angle at which distortion started to appear was determined to be good (◯), and the average value less than 2 ° was determined to be bad (x).
[Tensile test]
As shown in FIG. 3, the nut 12 is screwed into the upper portion of the stud 10, the nut 12 and the base material 11 are inserted into the bag portions of the upper jig 31 and the lower jig 32, and the base 33 of each jig 31, 32 is inserted. , 34 was sandwiched between chucks 35 and 36 of a tensile tester. An average value of breaking load of 2.5 kN or more is judged as very good ((), less than 2.5 kN, 2.0 kN or more is judged as good (◯), and a value less than 2.0 kN is judged as bad (×). did.
[Torque test]
As shown in FIG. 4, the nut 12 was screwed into the upper portion of the stud 10 via the curler 40 and the seat hook 41, and this was twisted using the torque wrench 42 until the stud 10 was broken. When the stud 10 breaks, the average value of the maximum torque is 2.5 N · m or more, very good (◎), less than 2.5 N · m, 2.0 N · m or more is good (○) And less than 2.0 N · m were judged as defective (x).
For comparison, similar inspections and tests were performed on a conventional JIS-A1050 alloy stud, a JIS-A5052 alloy stud, and a JIS-A5056 alloy stud.
[0015]
Tables 4 and 5 show the results when the capacitor capacity is 64000 μF, the voltage is 90 V, and the gap is 3.0 mm. Table 6 shows the allowable condition range of the voltage and the gap for improving the appearance.
[0016]
[Table 1]
Figure 0003836589
[0017]
[Table 2]
Figure 0003836589
[0018]
[Table 3]
Figure 0003836589
[0019]
[Table 4]
Figure 0003836589
[0020]
[Table 5]
Figure 0003836589
[0021]
[Table 6]
Figure 0003836589
[0022]
As apparent from Tables 4 to 6, Nos. 1 to 26 of the examples of the present invention all have good appearance under a wide range of welding conditions, large tensile strength and breaking torque, and exhibit excellent properties as studs. It was. Those containing an appropriate amount of Zn, Cu or the like have further improved tensile strength (welding strength) and the like.
On the other hand, No. 27 of the comparative example has low strength because Mg is low, and No. 28 has a large range of appropriate welding conditions because Mg is high. In addition, the conventional examples Nos. 29 to 31 all had a narrow range of appropriate welding conditions and lacked practicality.
In addition, when the stud of the example of the present invention was separately examined for moldability, corrosion resistance, and the like, all showed excellent characteristics. Among them, those containing the element group (2) such as Mn and Cr showed particularly excellent characteristics because of their fine crystal grains.
[0023]
【The invention's effect】
As described above, the stud of the present invention is excellent in welding strength and can take a wide range of appropriate welding conditions. Further, those containing an appropriate amount of an element group such as Mn and Cr have finer crystal grains and improved moldability and corrosion resistance. Therefore, it has a remarkable effect when used for an exterior panel of a building.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which studs are stud-welded to a panel (base material).
FIG. 2 is an explanatory perspective view of an appearance inspection apparatus.
FIG. 3 is an explanatory side view of a welding strength test.
FIG. 4 is an explanatory side view of a torque test.
[Explanation of symbols]
10 Stud
11 Panel (base material)
12 Nut
20 Angle adjuster
21 Support
22 Angle display board
23 Pattern board
24 Notch in support
25 specimens
26 Angle indicator hand
31 Upper jig
32 Lower jig
33 Base of upper jig
34 Base of lower jig
35,36 Chuck of tensile tester
40 curlers
41 Sitting
42 Torque wrench

Claims (2)

Mgを2.0〜5.0wt%含有し、残部がアルミニウムおよび不可避不純物からなることを特徴とするスタッド溶接によって母材に接合されるアルミニウム合金製スタッド An aluminum alloy stud joined to a base material by stud welding , characterized by containing 2.0 to 5.0 wt% of Mg and the balance being made of aluminum and inevitable impurities. Mgを2.0wt%を超え5.0wt%以下含有し、0.90wt%以下のCuと、総含有量が0.05〜0.90wt%のMn、Cr、Zn、Ti、Zr、Ni、B、V、Agの(i)元素群と、総含有量が0.90wt%以下のSi、Feの(ii)元素群とからなる選択元素のうちの少なくとも1元素を含有し、残部がアルミニウムおよび不可避不純物からなることを特徴とするスタッド溶接によって母材に接合されるアルミニウム合金製スタッドMg containing more than 2.0 wt% and not more than 5.0 wt%, not more than 0.90 wt%, and Mn, Cr, Zn, Ti, Zr, Ni, with a total content of 0.05 to 0.90 wt%, Contains at least one element selected from the group consisting of (i) elements of B, V, and Ag, and (ii) elements of Si and Fe having a total content of 0.90 wt% or less, with the balance being aluminum And an aluminum alloy stud joined to the base material by stud welding , characterized by comprising inevitable impurities.
JP35592297A 1997-02-10 1997-12-25 Aluminum alloy studs joined to the base metal by stud welding Expired - Fee Related JP3836589B2 (en)

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JP9-26606 1997-02-10
JP2660697 1997-02-10
JP35592297A JP3836589B2 (en) 1997-02-10 1997-12-25 Aluminum alloy studs joined to the base metal by stud welding

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DE19856613A1 (en) * 1998-12-08 2000-06-15 Emhart Inc Weld-on part made of aluminum or an aluminum alloy with a coating
JP4852269B2 (en) * 2005-07-05 2012-01-11 アジア技研株式会社 Stud welding method
JP5778415B2 (en) * 2009-12-24 2015-09-16 三協立山株式会社 Al-Mg-Si aluminum alloy
JP5154670B2 (en) * 2011-03-04 2013-02-27 アジア技研株式会社 Stud welding method

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