JPH0559521A - Zinc-coated aluminum and aluminum-alloy material - Google Patents
Zinc-coated aluminum and aluminum-alloy materialInfo
- Publication number
- JPH0559521A JPH0559521A JP24471391A JP24471391A JPH0559521A JP H0559521 A JPH0559521 A JP H0559521A JP 24471391 A JP24471391 A JP 24471391A JP 24471391 A JP24471391 A JP 24471391A JP H0559521 A JPH0559521 A JP H0559521A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- alloy material
- zinc
- coated
- coating
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 29
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 25
- 239000000956 alloy Substances 0.000 title claims abstract description 21
- 239000011701 zinc Substances 0.000 title claims abstract description 17
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 abstract description 17
- 239000000463 material Substances 0.000 abstract description 8
- 239000011247 coating layer Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007751 thermal spraying Methods 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は溶接によって組立てられ
る構造物に利用されるアルミニウムおよびアルミニウム
合金材に関し、特にレーザー溶接性に優れたアルミニウ
ムおよびアルミニウム合金材に係るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to aluminum and aluminum alloy materials used in structures assembled by welding, and more particularly to aluminum and aluminum alloy materials having excellent laser weldability.
【０００２】[0002]
【従来の技術とその課題】アルミニウムおよびアルミニ
ウム合金材を構造物とする場合、従来はアーク溶接また
はろう付等の融接による方法によって行われている。上
記のアーク溶接或いはトーチろう付等は熱集中性が悪
く、熱伝導率が高いアルミニウムおよびアルミニウム合
金材を融接すると熱歪が発生し、所定の寸法精度が要求
される構造物の製作が困難であるなど多くの問題があっ
た。近年、鉄鋼材料ではこれらの問題を解消するために
レーザー溶接が実用化されつつある。レーザー溶接は、
上記の融接方法と比較して熱集中性が良く、被溶接物の
局部溶融が可能であり、熱歪が極めて少ない接合法とし
て注目されている。しかしアルミニウムおよびアルミニ
ウム合金は鉄鋼材料或いはチタン等と比較するとレーザ
ーの反射率が高いためレーザー溶接が困難とされてお
り、実用化には至っていなかった。2. Description of the Related Art Conventionally, aluminum and aluminum alloy materials are used as a structure by a method such as arc welding or fusion welding such as brazing. The above arc welding or torch brazing has poor heat concentration, and when aluminum and aluminum alloy materials with high thermal conductivity are fusion-welded, thermal strain occurs, making it difficult to manufacture structures that require a certain dimensional accuracy. There were many problems such as In recent years, laser welding has been put to practical use in steel materials in order to solve these problems. Laser welding
It is attracting attention as a joining method that has better heat concentration than the fusion welding method described above, allows local melting of the objects to be welded, and has extremely little thermal strain. However, since aluminum and aluminum alloys have a higher laser reflectance than steel materials or titanium, laser welding is considered difficult, and they have not been put into practical use.
【０００３】[0003]
【発明が解決しようとする課題】本発明は上記の問題に
ついて検討の結果なされたもので、健全な溶接継手特性
が得られ、より信頼性に優れた構造物の製作を容易に行
えるアルミニウムおよびアルミニウム合金材を提供する
ものである。DISCLOSURE OF THE INVENTION The present invention has been made as a result of studying the above-mentioned problems. Aluminum and aluminum which can obtain a sound welded joint characteristic and can easily manufacture a structure with higher reliability are provided. An alloy material is provided.
【０００４】[0004]
【課題を解決するための手段】本発明は、アルミニウム
およびアルミニウム合金材の表面に亜鉛溶射層を被覆率
で０．１〜１０％被覆してなる亜鉛被覆アルミニウムお
よびアルミニウム合金材を請求項１とし、またアルミニ
ウム合金材の表面に工業用純アルミニウムを被覆率で１
〜２０％被覆し、さらにその表面に亜鉛溶射層を被覆率
で０．１〜１０％被覆してなる亜鉛被覆アルミニウムお
よびアルミニウム合金材を請求項２とするものである。The present invention provides a zinc-coated aluminum and aluminum alloy material comprising a surface of aluminum and an aluminum alloy material coated with a zinc sprayed layer in a coverage of 0.1 to 10%. , Industrial pure aluminum on the surface of aluminum alloy material with a coverage rate of 1
According to claim 2, a zinc-coated aluminum and aluminum alloy material having a coating rate of -20% and a zinc sprayed layer on the surface of which is coated at a coating rate of 0.1-10%.
【０００５】[0005]
【作用】すなわち本発明はアルミニウムおよびアルミニ
ウム合金表面にレーザーを吸収し易い媒体を被覆するこ
とで容易にレーザー溶接が可能となること、その媒体と
して犠牲陽極皮膜ともなる亜鉛が耐食性向上の観点から
も好ましいこと、さらに強度と加工性を兼ね備えた材料
とするために予め工業用純アルミニウムをアルミニウム
合金表面に被覆しその上に亜鉛を被覆することでレーザ
ー溶接も可能な従来にない特性のアルミニウム合金材料
を得たものである。しかして上記の亜鉛被覆層は溶射に
よるものが表面粗度の関係からレーザーを吸収し易く、
継手強度が高く、熱歪が少ない。上記のＺｎ被覆率は
０．１％未満ではレーザー吸収能が十分でなく、１０％
を上回ると加工性が悪くなる。また工業用純アルミニウ
ムの被覆率は１％未満では加工性の改善に効果なく、２
０％を上回ると十分な強度が得られない。なお上記のＺ
ｎ溶射層の被覆率および工業用純アルミニウムの被覆率
は、被覆率＝｛被覆層の厚さ／（被覆層＋アルミニウ
ム、アルミニウム合金の厚さ｝×１００である。In other words, the present invention makes it possible to easily perform laser welding by coating the surface of aluminum and aluminum alloys with a medium that easily absorbs laser, and zinc, which also serves as a sacrificial anodic coating, as the medium also improves the corrosion resistance. Aluminum alloy material with unprecedented characteristics that laser welding is also possible by coating industrial aluminum surface with aluminum alloy surface in advance in order to make it a material having both strength and workability. Is what I got. However, the above zinc coating layer is easily sprayed by laser because of its surface roughness,
High joint strength and low thermal strain. If the above-mentioned Zn coverage is less than 0.1%, the laser absorption ability is not sufficient, and it is 10%.
If it exceeds, the workability will deteriorate. Further, if the coating rate of industrial pure aluminum is less than 1%, it is not effective in improving the workability.
If it exceeds 0%, sufficient strength cannot be obtained. The above Z
The coating rate of the n sprayed layer and the coating rate of the industrial pure aluminum are: coating rate = {thickness of coating layer / (thickness of coating layer + aluminum, aluminum alloy)} × 100.
【０００６】[0006]
【実施例】以下に本発明の一実施例について説明する。 実施例１ 厚さ２mmのアルミニウムおよびアルミニウム合金の表１
に示す展伸材の表面に溶射によりＺｎ被覆層を形成し
た。これを巾３００mm、長さ５００mmの寸法にして２枚
突合せレーザー溶接した。そしてこの材料の引張り強度
（ｆB ）、伸び（δ）、溶接歪などの溶接継手特性を調
べた。なお比較のため従来のＭＩＧ、ＴＩＧ溶接による
試料も試験した。結果を表１に併記する。EXAMPLE An example of the present invention will be described below. Example 1 Table 1 of 2 mm thick aluminum and aluminum alloys
A Zn coating layer was formed on the surface of the wrought material shown in 1 by thermal spraying. Two pieces of this were butt laser welded to each other with a width of 300 mm and a length of 500 mm. Then, the weld joint characteristics such as tensile strength (f B ), elongation (δ) and welding strain of this material were examined. For comparison, samples prepared by conventional MIG and TIG welding were also tested. The results are also shown in Table 1.
【０００７】[0007]
【表１】 [Table 1]
【０００８】表１から明らかなように本発明例のNo．１
〜No．６は、従来の方法によるNo．７〜No．９と比較し
て継手強度が同等で溶接歪が著しく少ないことが判る。 実施例２ 実施例１と同様のアルミニウム合金材に工業用純アルミ
ニウムを表２に示す被覆率で被覆し、この表面に溶射に
よるＺｎ被覆層を形成し、実施例１と同様にレーザー溶
接し、溶接継手特性と曲げ加工性を調べた。なお曲げ加
工性は１８０°密着曲げを行い亀裂が生じないものを○
印、表面にヘアークラックが生じたものを△印とした。
また比較のため、工業用純アルミを被覆しない（一部に
ついてＺｎを被覆しない）従来材をレーザー溶接したも
のも試験した。これらの結果を表２に示す。As is apparent from Table 1, No. 1 of the examples of the present invention. 1
~ No. No. 6 by the conventional method. 7-No. It can be seen that the joint strength is equivalent to that of No. 9 and the welding strain is remarkably small. Example 2 The same aluminum alloy material as in Example 1 was coated with industrial pure aluminum at the coverage shown in Table 2, a Zn coating layer was formed by thermal spraying on this surface, and laser welding was carried out in the same manner as in Example 1, Welded joint characteristics and bendability were investigated. The bending workability is 180 ° in tight contact and no cracks occur.
Marks, and those with hair cracks on the surface were marked with Δ.
For comparison, laser welding of a conventional material not coated with industrial pure aluminum (partly not coated with Zn) was also tested. The results are shown in Table 2.
【０００９】[0009]
【表２】 [Table 2]
【００１０】表２より明らかなように本発明例のNo．１
０〜No．１３は比較例No．１６、１７に比べ曲げ加工性
が良いことが判る。なお比較例No．１４、１５は溶接が
できなかった。As is clear from Table 2, No. 1
0-No. No. 13 is a comparative example No. It can be seen that the bending workability is better than those of Nos. 16 and 17. Comparative example No. No. 14 and 15 could not be welded.
【００１１】[0011]
【発明の効果】以上に説明したように本発明によれば、
従来不可能であったアルミニウムおよびアルミニウム合
金材の溶接を可能とし、かつ継手特性の優れた接合がで
きるもので構造物の軽量化、省エネルギーに大きく寄与
するものである。As described above, according to the present invention,
It enables the welding of aluminum and aluminum alloy materials, which has been impossible in the past, and enables the joining with excellent joint characteristics, which greatly contributes to the weight saving of the structure and energy saving.
Claims (2)
の表面に亜鉛溶射層を被覆率で０．１〜１０％被覆して
なる亜鉛被覆アルミニウムおよびアルミニウム合金材。1. A zinc-coated aluminum or aluminum alloy material, which is obtained by coating a surface of aluminum or aluminum alloy material with a zinc sprayed layer in a coverage of 0.1 to 10%.
ルミニウムを被覆率で１〜２０％被覆し、さらにその表
面に亜鉛溶射層を被覆率で０．１〜１０％被覆してなる
亜鉛被覆アルミニウムおよびアルミニウム合金材。2. Zinc-coated aluminum obtained by coating the surface of an aluminum alloy material with industrial pure aluminum in a coverage of 1 to 20%, and further coating the surface thereof with a zinc sprayed layer in a coverage of 0.1 to 10%. And aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24471391A JPH0559521A (en) | 1991-08-28 | 1991-08-28 | Zinc-coated aluminum and aluminum-alloy material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24471391A JPH0559521A (en) | 1991-08-28 | 1991-08-28 | Zinc-coated aluminum and aluminum-alloy material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0559521A true JPH0559521A (en) | 1993-03-09 |
Family
ID=17122810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24471391A Pending JPH0559521A (en) | 1991-08-28 | 1991-08-28 | Zinc-coated aluminum and aluminum-alloy material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0559521A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008274333A (en) * | 2007-04-26 | 2008-11-13 | Sumitomo Light Metal Ind Ltd | Aluminum or aluminum alloy member for laser welding |
-
1991
- 1991-08-28 JP JP24471391A patent/JPH0559521A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008274333A (en) * | 2007-04-26 | 2008-11-13 | Sumitomo Light Metal Ind Ltd | Aluminum or aluminum alloy member for laser welding |
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