JPH02107751A - Production of aluminum and aluminum alloy sheet for forming - Google Patents
Production of aluminum and aluminum alloy sheet for formingInfo
- Publication number
- JPH02107751A JPH02107751A JP25911088A JP25911088A JPH02107751A JP H02107751 A JPH02107751 A JP H02107751A JP 25911088 A JP25911088 A JP 25911088A JP 25911088 A JP25911088 A JP 25911088A JP H02107751 A JPH02107751 A JP H02107751A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- forming
- cold rolling
- alloy sheet
- finished
- 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
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000005097 cold rolling Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000006061 abrasive grain Substances 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 abstract description 9
- 238000005498 polishing Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 13
- 239000000956 alloy Substances 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000003746 surface roughness Effects 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Landscapes
- Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は成形用アルミニウムおよびアルミニウム合金板
の製造方法に関し、さらに詳しくは成形加工および塗装
を伴う用途に好適な成形性に優れたアルミニウムおよび
アルミニウム合金板の製造方法に係るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for producing aluminum and aluminum alloy plates for forming, and more specifically to aluminum and aluminum with excellent formability suitable for applications involving forming and painting. This invention relates to a method for manufacturing an alloy plate.
アルミニウムおよびアルミニウム合金は従来から優れた
成形用材料として広く使用されている。Aluminum and aluminum alloys have traditionally been widely used as excellent molding materials.
成形材料、特にキャンボディ、食缶、器物、或いはキャ
ップ等の成形に使用される材料は成形性および塗装性に
優れていることが要求される。成形性に影響する因子と
しては、材料の合金成分、金属組織などに依存する物理
的もしくは機械的特性値と、成形時に使用される潤滑剤
（潤滑油）の成分、添加剤、粘度などが知られている。Molding materials, particularly materials used for molding canvas bodies, food cans, utensils, caps, etc., are required to have excellent moldability and paintability. Factors that affect formability include physical and mechanical property values that depend on the material's alloy composition and metal structure, as well as the composition, additives, and viscosity of the lubricant (lubricant oil) used during forming. It is being
さらに材料表面の微視的レベルでの形状は成形時の潤滑
剤保持性（材料表面への潤滑剤の浸透性）に関係し、成
形性に影響する要因としても位置ずれられている。Furthermore, the shape of the material surface at the microscopic level is related to lubricant retention during molding (lubricant permeability into the material surface), and is also considered a factor that affects moldability.
一方成形用板材の表面は圧延に使用するロールの表面が
転写されるためロール表面の微視的レベルｊ１１が成形
性に優れた材料を製造するにあたって重要とされている
。On the other hand, since the surface of the roll used for rolling is transferred to the surface of the forming plate material, the microscopic level j11 of the roll surface is considered important in producing a material with excellent formability.
通常圧延ロール表面は砥石を用いて仕上加工され、砥石
表面の粗さならびに砥石の送り速度、ロールの回転速度
などの研磨条件によって仕上状態が異なる。The surface of a rolling roll is usually finished using a grindstone, and the finished state varies depending on the roughness of the surface of the grindstone, the grinding speed of the grindstone, the rotation speed of the roll, and other polishing conditions.
従来成形用板材の表面はＪＩＳで規定されている表面粗
度Ｒａで表示するとＯ１１〜０．７μｍの粗さを有して
いる。潤滑剤の保持性についてはＲａをある程度大きく
した方がよいとする考え方もあるが定説はない。このた
め成形される材料の成形性向上は主に金属組繊制御Ｊに
より図られている。The surface of a conventional molding plate material has a roughness of O11 to 0.7 μm when expressed as surface roughness Ra specified by JIS. Regarding lubricant retention, there is a view that it is better to increase Ra to a certain extent, but there is no established theory. For this reason, improvement in the formability of the material to be molded is mainly achieved by metal composition control J.
他方、光輝性はＲａが小さいほど優れているとさている
。しかし実用上は成形性とのかねあいで表面粗度を適宜
選択して実用に供しているのが通例である。On the other hand, it is said that the smaller Ra is, the better the brightness is. However, in practice, it is customary to appropriately select the surface roughness in consideration of moldability.
したがって各種部材の成形に使用され形成用アルミニウ
ム合金板は形状および用途に応じて同一合金材料でも金
属組織、組成を微妙に制御して使い分けているのが現状
であり、広い用途に適用できる材料は少ない。最近、加
工技術の進歩と共に材料に要求される品質水準も年々高
くなり、成形性および塗装性の向上が強く要望されてい
るが、これまでの技術では飛躍的な改善は望めなかった
。Therefore, the current situation is that the aluminum alloy sheets used for forming various parts are used differently depending on the shape and purpose, even if they are the same alloy material, by delicately controlling the metal structure and composition. few. Recently, with the advancement of processing technology, the quality standards required for materials have been increasing year by year, and there is a strong demand for improvements in moldability and paintability, but with conventional technology, dramatic improvements have not been expected.
（発明が解決しようとする課題）
本発明者は、上記の問題を解決すべく鋭意検討の結果、
従来の砥石研磨により仕上加工されたロールで圧延され
た板では圧延方向に沿ってロール目が転写されるために
板材表面に形成される窪みは圧延方向に引き延ばされて
、成形時の潤滑油溜りとしてを効に作用しないことが判
った。この知見をもとに通常行なわれない粗さと砥粒径
との組合せについて検討した結果、成形性が従来材と比
較して格段に優れたアルミニウムおよびアルミニウム合
金板の製造方法を開発したものである。(Problems to be Solved by the Invention) As a result of intensive studies to solve the above problems, the inventors have found that:
In a plate rolled with a roll that has been finished by conventional grinding, the roll marks are transferred along the rolling direction, so the depressions formed on the plate surface are stretched in the rolling direction, providing lubrication during forming. It was found that it did not act effectively as an oil reservoir. Based on this knowledge, we investigated unusual combinations of roughness and abrasive grain size, and as a result, we developed a method for producing aluminum and aluminum alloy plates with significantly superior formability compared to conventional materials. .
〔課題を解決するための手段および作用〕本発明は砥粒
径が＃８０より細かい砥石を用い、中心線平均粗さＲａ
を０．３〜０，７μｍの範囲に仕上げた冷間圧延ロール
を使用して板の冷間圧延を行なうことを特徴とする成形
用アルミニウムおよびアルミニウム合金板の製造方法で
ある。[Means and effects for solving the problem] The present invention uses a grindstone with an abrasive grain diameter smaller than #80, and the center line average roughness Ra
This method of manufacturing aluminum and aluminum alloy plates for forming is characterized by cold rolling the plates using cold rolling rolls finished to a thickness in the range of 0.3 to 0.7 μm.
すなわち本発明は、アルミニウムおよびアルミニウム合
金板に中心線粗さＲａが０．３〜０．７μｍの粗面とす
ることにより潤滑油の保持性が良好な材料を得ようとす
るもので、この粗さを得るためには圧延ロールを研磨す
る際砥粒径が＃８０より細かい（砥粒径は＃数の大きい
方が細かい）砥石を使用して上記の粗さに研磨するもの
である。ここで中心事■さＲａが０．３−未満では潤滑
油の保持効果の良い板が得られず、また０、７−を越え
ると、得られた仮の表面粗さが著しく粗くなり谷の部分
のノツチ効果により強度の低下を招くためである。That is, the present invention aims to obtain a material with good lubricating oil retention by forming an aluminum or aluminum alloy plate with a rough surface having a center line roughness Ra of 0.3 to 0.7 μm. In order to obtain this roughness, when polishing the rolling roll, a grindstone with an abrasive grain size finer than #80 (the larger the grain size is, the finer the abrasive grain size is) is used to polish the roll to the above-mentioned roughness. The main thing to remember here: If Ra is less than 0.3, a board with good lubricating oil retention effect cannot be obtained, and if it exceeds 0.7, the obtained temporary surface roughness will become extremely rough and the valleys will become rough. This is because the notch effect of the parts leads to a decrease in strength.
通常この程度の表面粗さを得るためには＃８０より粗い
砥石を用いるが粗い砥粒により形成される窪みは、仮の
成形時の潤滑油溜りとして有効に作用しなくなり、成形
性を害するようになる。また砥石の砥粒径は小さい程上
記の作用は有効に働き成形性は良好となるが砥粒径が小
さい程表面粗さは細かくなり、上記の範囲に仕上げるこ
とが困難となる。したがって４２００位までが適当であ
る。Normally, to obtain this level of surface roughness, a grindstone coarser than #80 is used, but the depressions formed by coarse abrasive grains do not effectively act as a lubricant reservoir during temporary molding, and may impair moldability. become. In addition, the smaller the abrasive grain diameter of the grindstone, the more effectively the above effect works and the better the moldability becomes, but the smaller the abrasive grain diameter is, the finer the surface roughness becomes, making it difficult to finish within the above range. Therefore, a value up to 4200 is appropriate.
本発明は上記の範囲に仕上げられた冷間圧延ロールを使
用して仮を冷間圧延し、ロールの粗面を板に転写して、
成形性の良好な板材料を得るものである。The present invention uses a cold rolling roll finished in the above range to cold roll a temporary roll, transfer the rough surface of the roll to a plate, and
A plate material with good formability is obtained.
しかして本発明に用いる板材料の組成は、通常の成形用
アルミニウムおよびアルミニウム合金組成のものが使用
でき、また冷間圧延は通常の板を転写する冷間圧延方法
が適用できる。As for the composition of the plate material used in the present invention, those having the usual forming aluminum and aluminum alloy compositions can be used, and for the cold rolling, a normal cold rolling method of transferring a plate can be applied.
以下に本発明の一実施例について説明する。 An embodiment of the present invention will be described below.
ＪＩ３３００４合金および５０５２合金相当のアルミニ
ウム合金の５００Ｍ厚さの鋳塊を面側、均質化処理およ
び熱間圧延を施したものを、第１表に示す各種条件に仕
上げた圧延ロールを用いて冷間圧延を行ない０．３ ｍ
ｍ厚の仮とした。冷間圧延後或いは冷間圧延途中に焼鈍
を施し、３００４合金は■１３９．５０５２合金はトＩ
２４調質とした。A 500M thick ingot of aluminum alloy equivalent to JI 33004 alloy and 5052 alloy was subjected to surface side homogenization treatment and hot rolling, and then cold rolled using rolling rolls finished under the various conditions shown in Table 1. Rolling to 0.3 m
It was assumed that the thickness was m. Annealing is performed after cold rolling or during cold rolling, and 3004 alloy is ■139.5052 alloy is
24 tempering.
これらの各試料について限界絞り比（ＬＤＲ）およびエ
リクセン値の試験を行なった。この結果を第１表に併記
した。Each of these samples was tested for limit drawing ratio (LDR) and Erichsen value. The results are also listed in Table 1.
第
表
り成形時の潤滑状態を改善して成形性の優れたアルミニ
ウムおよびアルミニウム合金板が得られるもので工業上
顕著な効果を奏するものである。This method improves the lubrication state during surface forming and provides aluminum and aluminum alloy plates with excellent formability, which is a significant industrial effect.
第１表から明らかなように本発明の試料Ｎα１〜Ｎα３
はＬＤＲも大きく、かつエリクセン値も高く良好な成形
性を示すことが判る。これに対し、比較例Ｎα４は砥粒
径が本発明の範囲より大きいため、Ｎα５はＲａが小さ
いため、またＮα６は砥粒径とＲａが大きいため、いず
れもＬＤＲが小さく、またエリクセン値も小さいことが
認められる。As is clear from Table 1, samples Nα1 to Nα3 of the present invention
It can be seen that the LDR is large and the Erichsen value is also high, indicating good moldability. On the other hand, the comparative example Nα4 has an abrasive grain size larger than the range of the present invention, Nα5 has a small Ra, and Nα6 has a large abrasive grain size and Ra, so the LDR is small and the Erichsen value is also small. It is recognized that
Claims (1)
さＲａを０．３〜０．７μｍの範囲に仕上げた冷間圧延
ロールを使用して板の冷間圧延を行なうことを特徴とす
る成形用アルミニウムおよびアルミニウム合金板の製造
方法。The plate is cold rolled using a grindstone with an abrasive grain diameter smaller than #80 and a cold rolling roll finished with a center line average roughness Ra in the range of 0.3 to 0.7 μm. A method for manufacturing aluminum and aluminum alloy sheets for forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25911088A JPH02107751A (en) | 1988-10-14 | 1988-10-14 | Production of aluminum and aluminum alloy sheet for forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25911088A JPH02107751A (en) | 1988-10-14 | 1988-10-14 | Production of aluminum and aluminum alloy sheet for forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02107751A true JPH02107751A (en) | 1990-04-19 |
Family
ID=17329456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25911088A Pending JPH02107751A (en) | 1988-10-14 | 1988-10-14 | Production of aluminum and aluminum alloy sheet for forming |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02107751A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5636544A (en) * | 1992-06-04 | 1997-06-10 | Sumitomo Metal Industries, Ltd. | Cold rolling method for a metal strip and a mill array |
| US6138490A (en) * | 1998-07-17 | 2000-10-31 | Pechiney Rolled Products Llc | Process for rendering a metal sheet suitable for lighting applications and sheet produced thereby |
-
1988
- 1988-10-14 JP JP25911088A patent/JPH02107751A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5636544A (en) * | 1992-06-04 | 1997-06-10 | Sumitomo Metal Industries, Ltd. | Cold rolling method for a metal strip and a mill array |
| US6138490A (en) * | 1998-07-17 | 2000-10-31 | Pechiney Rolled Products Llc | Process for rendering a metal sheet suitable for lighting applications and sheet produced thereby |
| US6153316A (en) * | 1998-07-17 | 2000-11-28 | Pechiney Rolled Products Llc | Mechanically textured aluminum alloy sheet |
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