JP2000061568A - Hollow metal material and its production - Google Patents
Hollow metal material and its productionInfo
- Publication number
- JP2000061568A JP2000061568A JP10237250A JP23725098A JP2000061568A JP 2000061568 A JP2000061568 A JP 2000061568A JP 10237250 A JP10237250 A JP 10237250A JP 23725098 A JP23725098 A JP 23725098A JP 2000061568 A JP2000061568 A JP 2000061568A
- Authority
- JP
- Japan
- Prior art keywords
- cross
- metal material
- section
- hollow
- hollow metal
- 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.)
- Granted
Links
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、例えば金属材の軽
量化などを目的として用いられる、内部に中空部を有す
る中空金属材、およびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow metal material having a hollow portion inside, which is used for the purpose of, for example, reducing the weight of a metal material, and a manufacturing method thereof.
【0002】[0002]
【従来の技術】周知のように、金属材は、様々な技術分
野で広く用いられており、その用途に適した特性をもつ
ものが選択され、使用されている。一方、金属材は、一
般には比重が大きいため、その用途によっては、軽量化
を求められる場合がある。例えば、オーディオ機器や車
両のドアミラーなどに用いられるモータは、小型かつ軽
量であることが好ましく、その場合、モータのコアを構
成するケイ素鋼などの金属材もまた、材質を変えずに軽
量化することが求められる。中空金属材は、このような
場合などに用いられており、従来一般に、中実の金属材
をNC機械による切削などで穴あけ加工することによっ
て、製造されている。2. Description of the Related Art As is well known, metal materials are widely used in various technical fields, and those having characteristics suitable for their use are selected and used. On the other hand, since a metal material generally has a large specific gravity, depending on its application, weight reduction may be required. For example, a motor used for an audio device or a vehicle door mirror is preferably small and lightweight, and in that case, a metal material such as silicon steel forming the core of the motor is also lightened without changing the material. Is required. The hollow metal material is used in such a case, and is generally manufactured by punching a solid metal material by cutting with an NC machine.
【0003】[0003]
【発明が解決しようとする課題】しかし、上述した従来
の中空金属材は、中実の金属材の機械的な切削によって
形成されるため、生産効率が低いとともに、無駄な切削
片が生じることで材料の歩留まりも悪く、製造コストが
増大するという欠点がある。この欠点は、金属材の軽量
化を進めるために中空部の断面積比を大きくした場合
に、特に顕著になる。また、中空部の断面積比が大きく
なると、切削の際に必要な金属材の支持力や剛性が不足
がちになるため、得られる軽量化の度合には限界があ
る。さらに、機械的な切削で穴あけを行うので、穴の位
置や寸法がずれやすく、中空部を高い精度で形成するこ
とができないとともに、その断面形状も限られてしま
う。However, since the above-mentioned conventional hollow metal material is formed by mechanical cutting of a solid metal material, the production efficiency is low and waste cutting pieces are generated. There are disadvantages that the yield of materials is poor and the manufacturing cost increases. This drawback becomes particularly remarkable when the cross-sectional area ratio of the hollow portion is increased in order to reduce the weight of the metal material. In addition, when the cross-sectional area ratio of the hollow portion becomes large, the supporting force and rigidity of the metal material necessary for cutting tend to be insufficient, and thus there is a limit to the degree of weight reduction that can be obtained. Furthermore, since the holes are drilled by mechanical cutting, the positions and dimensions of the holes are likely to shift, the hollow portion cannot be formed with high accuracy, and the cross-sectional shape is also limited.
【0004】本発明は、このような課題を解決するため
になされたものであり、効率良く低コストで製造できる
とともに、中空部を高精度で且つ大きな断面積比と多様
な断面形状で容易に形成することができる中空金属材、
およびその製造方法を提供することを目的とする。The present invention has been made to solve the above problems, and can be manufactured efficiently and at low cost, and the hollow portion can be easily manufactured with high accuracy and a large cross-sectional area ratio and various cross-sectional shapes. Hollow metal material, which can be formed
And a method for manufacturing the same.
【0005】[0005]
【課題を解決するための手段】この目的を達成するた
め、本発明の中空金属材は、突部および凹部を備えた所
定の断面形状をそれぞれ有し、凹部により中空部が画成
されるように突部が互いに接合された状態で積層された
金属製の複数の異形断面材で構成されていることを特徴
としている。In order to achieve this object, the hollow metal material of the present invention has a predetermined cross-sectional shape having a projection and a recess, and the recess defines the hollow portion. It is characterized in that it is made up of a plurality of metal-made cross-section members which are laminated in a state where the protrusions are bonded to each other.
【0006】この中空金属材は、突部同士を接合した状
態で積層された所定の断面形状の複数の異形断面材によ
って構成されていて、隣接する異形断面材の凹部の間に
中空部が画成される。このように、本発明の中空金属材
では、所定の断面形状にあらかじめ形成され、積層・接
合された複数の異形断面材によって、中空部が形成され
るので、従来の金属材の切削加工による場合と比較し
て、効率良くかつ低コストで製造することができる。This hollow metal material is composed of a plurality of modified cross-section members having a predetermined cross-sectional shape which are laminated in a state where the projections are joined to each other, and a hollow part is defined between the recesses of adjacent modified cross-section materials. Is made. As described above, in the hollow metal material of the present invention, the hollow portion is formed by a plurality of odd-shaped cross-sectional materials that are formed in advance in a predetermined cross-sectional shape, and are laminated and joined together. It can be manufactured efficiently and at low cost as compared with.
【0007】また、この中空金属材では、上記のように
中空部が形成されることから、中空部の精度ならびに断
面積比および断面形状が、異形断面材の断面精度および
断面形状にそれぞれ依存することになる。一方、異形断
面材自体は、比較的高い断面精度で作製できるととも
に、様々な断面形状のものを比較的容易に得ることがで
きる。したがって、従来の切削加工による場合と比較し
て、中空部を高精度で且つ大きな断面積比と多様な断面
形状で形成することができる。例えば、従来の中空金属
材よりも大きな断面積比の中空部を形成することが可能
であり、それによって、より軽量化された金属材を得る
ことができる。Further, in this hollow metal material, since the hollow portion is formed as described above, the accuracy of the hollow portion, the cross-sectional area ratio and the cross-sectional shape depend on the cross-sectional accuracy and cross-sectional shape of the modified cross-sectional material, respectively. It will be. On the other hand, the modified cross-section material itself can be manufactured with relatively high cross-section accuracy, and various cross-sectional shapes can be obtained relatively easily. Therefore, the hollow portion can be formed with high accuracy and a large cross-sectional area ratio and various cross-sectional shapes, as compared with the case of the conventional cutting process. For example, it is possible to form a hollow portion having a larger cross-sectional area ratio than that of a conventional hollow metal material, whereby a lighter weight metal material can be obtained.
【0008】また、上記目的を達成するため、本発明の
中空金属材の製造方法は、長さ方向に連続的に延びる突
部および凹部を備えた所定の断面形状をそれぞれ有する
金属製の複数の異形断面板を準備し、これら複数の異形
断面板を、凹部により中空部が画成されるように突部が
互いに接した状態で積層し、積層した複数の異形断面板
の互いに接する突部同士を接合し、接合した複数の異形
断面板を所定寸法に切断することを特徴としている。In order to achieve the above object, the method for manufacturing a hollow metal material according to the present invention comprises a plurality of metallic members each having a predetermined cross-sectional shape with a projection and a recess extending continuously in the length direction. A modified cross-section plate is prepared, and a plurality of these modified cross-section plates are stacked in a state where the projections are in contact with each other so that the hollow portion is defined by the recess, and the projections of the stacked multiple modified cross-section plates are in contact with each other. Are joined together, and the plurality of joined irregularly shaped cross-section plates are cut into a predetermined size.
【0009】この中空金属材の製造方法によれば、長さ
方向に連続的に延びる突部および凹部を備えた所定の断
面形状をを有する長尺の複数の異形断面板をあらかじめ
準備し、これらを積層・接合した後に所定寸法に切断す
るだけで、上述した請求項1に係る中空金属材を効率良
く製造することができる。また、切断の際に材料の無駄
が生じないので、中空金属材の製造コストをさらに削減
することができる。According to this method for producing a hollow metal material, a plurality of elongated deformed cross-section plates having a predetermined cross-sectional shape, which are provided with projections and recesses continuously extending in the lengthwise direction, are prepared in advance. The hollow metal material according to the above-mentioned claim 1 can be efficiently manufactured only by cutting and cutting it into a predetermined size after stacking and joining. Further, since the material is not wasted during the cutting, the manufacturing cost of the hollow metal material can be further reduced.
【0010】この場合、異形断面板を圧延異形加工法に
よって形成することが好ましい。In this case, it is preferable that the deformed cross-section plate is formed by a rolling deforming method.
【0011】ここで、圧延異形加工法とは、先端が鋭角
の平板状ダイの表面に長尺の金属板を当接させ、この金
属板上で押圧ロールを転動させることにより金属板を平
板状ダイに向かって押圧し、押圧ロールの転動の終了ご
とに金属板をその長さ方向に沿って後方へ所定長さ移動
させる方法(特公昭52−36512号公報参照)、お
よびその応用法(特公平2−51694号公報参照)を
いう。この圧延異形加工法によれば、高い断面精度の異
形断面板を形成できるとともに、平板状ダイの形状およ
び配置などを変更することによって、多様な断面形状を
容易に得ることが可能である。したがって、この製造方
法によれば、高精度で且つ大きな断面積比と多様な断面
形状で、中空部を容易に得ることができる。Here, the rolling deformation processing method means that a long metal plate is brought into contact with the surface of a flat plate die having an acute tip, and a pressing roll is rolled on the metal plate to flatten the metal plate. Of pressing the metal die toward the die and moving the metal plate backward by a predetermined length along the lengthwise direction each time the rolling of the pressure roll ends (see Japanese Patent Publication No. 52-36512) and its application method. (See Japanese Patent Publication No. 2-51694). According to this rolling profile processing method, a profile cross-section plate with high cross-section accuracy can be formed, and various cross-section shapes can be easily obtained by changing the shape and arrangement of the flat plate die. Therefore, according to this manufacturing method, the hollow portion can be easily obtained with high accuracy, a large cross-sectional area ratio, and various cross-sectional shapes.
【0012】[0012]
【発明の実施の形態】以下、図面を参照しながら、本発
明の好ましい実施形態を詳細に説明する。図1は本発明
の第1実施形態による中空金属材を示している。図1に
示すように、この中空金属材1は、4個の異形断面材2
を上下方向に積層・接合したものである。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a hollow metal material according to the first embodiment of the present invention. As shown in FIG. 1, the hollow metal material 1 includes four modified cross-section materials 2
Are laminated and joined in the vertical direction.
【0013】異形断面材2は、ケイ素鋼などの同材質の
金属から成る、上下2個の表面異形断面材2a、2aお
よび中間の2個の中間異形断面材2b、2bで構成され
ている。上側の表面異形断面材2aは、上面が平坦であ
る一方、下面には、表面が平坦な複数の突部3と断面半
円形の複数の凹部4とが、交互に等間隔で形成されてお
り、これらの突部3および凹部4は、断面と直角な方向
(図1のC方向)に連続的に延びている。下側の表面異
形断面材2aは、上側の表面異形断面材2aと同じ構成
を有し、上下逆にしたものである。また、各中間異形断
面材2bの上下両面には、表面異形断面材2aと同様の
複数の突部3および凹部4が形成されている。The modified cross-section material 2 is composed of two upper and lower surface modified cross-section materials 2a and 2a and an intermediate two intermediate modified cross-section materials 2b and 2b made of the same metal such as silicon steel. The upper surface profiled cross-section material 2a has a flat upper surface, while a plurality of protrusions 3 having a flat surface and a plurality of recesses 4 having a semicircular cross section are alternately formed on the lower surface at equal intervals. The projections 3 and the recesses 4 continuously extend in a direction perpendicular to the cross section (direction C in FIG. 1). The lower surface profiled cross-section material 2a has the same structure as the upper surface profiled cross-section material 2a, and is upside down. Further, a plurality of protrusions 3 and recesses 4 similar to those of the surface profiled section material 2a are formed on both upper and lower surfaces of each intermediate profiled material 2b.
【0014】これらの異形断面材2は、図1に示すよう
に、突部3同士が重なり合うように上下方向に積層さ
れ、突部3の部分でかしめなどにより接合されている。
これにより、中空金属材1は、全体としてブロック状に
形成されるとともに、隣接する各2つの異形断面材2、
2の対向する凹部4、4によって、断面が円形でその直
角方向に連続的に延びる複数の中空部5が画成される。
この中空部5の断面積比、すなわち中空金属材1の全断
面積に占める中空部5の断面積の割合は、例えば約50
%であり、したがって、この中空金属材1によれば、約
50%の軽量化が達成される。As shown in FIG. 1, these modified cross-section members 2 are vertically stacked so that the projections 3 are overlapped with each other, and the projections 3 are joined by caulking or the like.
As a result, the hollow metal material 1 is formed into a block shape as a whole, and each adjacent two modified cross-section materials 2,
The two opposed recesses 4 and 4 define a plurality of hollow portions 5 having a circular cross section and continuously extending in the direction perpendicular to the circular cross section.
The cross-sectional area ratio of the hollow portion 5, that is, the ratio of the cross-sectional area of the hollow portion 5 to the total cross-sectional area of the hollow metal material 1 is, for example, about 50.
%, Therefore, the hollow metal material 1 achieves a weight reduction of about 50%.
【0015】図2および図3は、中空金属材1の製造方
法を示している。この製造方法ではまず、図2に示す長
尺の表面異形断面板6aおよび中間異形断面板6b(異
形断面板6)を必要数、準備する。これらの表面異形断
面板6aおよび中間異形断面板6bは、表面異形断面材
2aおよび中間異形断面材2bとそれぞれ同じ断面を有
するよう形成されており、長さ方向に連続的に延びる突
部3および凹部4を備えている。2 and 3 show a method of manufacturing the hollow metal material 1. In this manufacturing method, first, a required number of long surface irregular-shaped cross-section plates 6a and intermediate irregular-shaped cross-section plates 6b (deformed cross-section plates 6) are prepared. The surface modified cross-section plate 6a and the intermediate modified cross-section plate 6b are formed so as to have the same cross sections as the surface modified cross-section material 2a and the intermediate modification cross-section material 2b, respectively, and the projection 3 and the projection 3 that continuously extend in the longitudinal direction. It has a recess 4.
【0016】この異形断面板6は、例えば、前述した圧
延異形加工法によって製造される。この圧延異形加工法
によれば、高い断面精度の異形断面板を形成できるとと
もに、平板状ダイの形状および配置などを変更すること
によって、多様な断面形状を容易に得ることが可能であ
る。もちろん、異形断面板6として、他の方法で製造さ
れたものを用いてもよい。The modified cross-section plate 6 is manufactured, for example, by the above-described rolling modification processing method. According to this rolling profile processing method, a profile cross-section plate with high cross-section accuracy can be formed, and various cross-section shapes can be easily obtained by changing the shape and arrangement of the flat plate die. Of course, as the modified cross-section plate 6, one manufactured by another method may be used.
【0017】次いで、図3に示すように、これらの異形
断面板6を、突部3同士が重なり合うように上下方向に
積層し、突部3同士を、かしめ、溶接あるいは接着など
することによって、接合する。最後に、接合した異形断
面板6を、同図のA−A’線に沿って所定寸法に切断す
ることによって、図1に示す中空金属材1が完成する。
この中空金属材1は、必要に応じて所要の寸法にさらに
切断され、例えば、モータのコアなどとして用いられ
る。Next, as shown in FIG. 3, these modified cross-section plates 6 are vertically laminated so that the protrusions 3 are overlapped with each other, and the protrusions 3 are caulked, welded or bonded to each other. To join. Finally, the joined irregular-shaped cross-section plate 6 is cut into a predetermined dimension along the line AA ′ in the figure, whereby the hollow metal material 1 shown in FIG. 1 is completed.
The hollow metal material 1 is further cut into a required size as needed, and is used as a core of a motor, for example.
【0018】以上のように、本実施形態の中空金属材1
によれば、所定の断面形状にあらかじめ形成され、積層
・接合された複数の異形断面材2によって、中空部5が
形成されるので、従来の金属材の切削加工による場合と
比較して、効率良くかつ低コストで製造することができ
る。また、本実施形態では、長尺の複数の異形断面板6
をあらかじめ準備し、これらを積層・接合した後に所定
寸法に切断することによって、中空金属材1を形成する
ので、中空金属材1を効率良く製造することができる。
さらに、切断の際に材料の無駄が生じないので、中空金
属材1の製造コストをさらに削減することができる。ま
た、異形断面板6が圧延異形加工法で形成されているこ
とで、高い断面精度が得られるので、中空部5を高精度
で形成することができる。As described above, the hollow metal material 1 of this embodiment
According to the method, since the hollow portion 5 is formed by the plurality of odd-shaped cross-section members 2 which are formed in advance in a predetermined cross-sectional shape and are laminated and joined, the efficiency is higher than that in the case of the conventional cutting work of a metal material. It can be manufactured well and at low cost. In addition, in the present embodiment, a plurality of elongated modified cross-section plates 6
Since the hollow metal material 1 is formed by preparing in advance, laminating and joining them, and then cutting them into a predetermined size, the hollow metal material 1 can be efficiently manufactured.
Further, since no material is wasted during cutting, the manufacturing cost of the hollow metal material 1 can be further reduced. Further, since the modified cross-section plate 6 is formed by the rolling deformation processing method, high cross-section accuracy can be obtained, so that the hollow portion 5 can be formed with high accuracy.
【0019】図4〜図6は、本発明の第2実施形態によ
る中空金属材およびその製造方法を示している。この中
空金属材11は、第1実施形態の中空金属材1と比較
し、異なる断面形状の異形断面材を用いることによっ
て、ハニカム状の中空部を得るとともに、中空部の断面
積比を大きくすることで軽量化の度合を高めたものであ
る。図4に示すように、中空金属材11は、中間の3個
の異形断面材12、12、12と、それらを被う上下の
表面材13、13とから成る5層構成になっている。各
異形断面材12の中央部には正六角形の突部14aが、
両端部には半六角形の突部14bが、それぞれ上下方向
に突出するように形成されており、突部14a、14b
の間が、比較的大きな幅の凹部15になっている。4 to 6 show a hollow metal material and a method for manufacturing the same according to a second embodiment of the present invention. Compared with the hollow metal material 1 of the first embodiment, this hollow metal material 11 uses a modified cross-section material having a different cross-sectional shape to obtain a honeycomb-shaped hollow portion and increase the cross-sectional area ratio of the hollow portion. By doing so, the degree of weight reduction is enhanced. As shown in FIG. 4, the hollow metal material 11 has a five-layer structure including three intermediate cross-section members 12, 12, 12 and upper and lower surface materials 13, 13 covering them. A regular hexagonal protrusion 14a is formed at the center of each modified cross-section member 12,
Semi-hexagonal protrusions 14b are formed at both ends so as to protrude in the vertical direction.
Between them is a recess 15 having a relatively large width.
【0020】第1実施形態と同様、これらの異形断面材
12および表面材13は、突部14a、14bを介し
て、相互に積層され、かしめなどで接合されていて、異
形断面材12、12相互の間、および異形断面材12と
表面材13の間に、凹部15によってハニカム状の中空
部16が画成されている。この中空部16の断面積比は
例えば約75%であり、第1実施形態の中空金属材1の
場合(約50%)と比較して、軽量化の度合が高くなっ
ている。Similar to the first embodiment, the modified cross-section material 12 and the surface material 13 are laminated on each other via the projections 14a and 14b and joined by caulking, etc. Honeycomb-shaped hollow portions 16 are defined by the recesses 15 between each other and between the modified cross-section material 12 and the surface material 13. The cross-sectional area ratio of the hollow portion 16 is, for example, about 75%, and the degree of weight reduction is higher than that of the hollow metal material 1 of the first embodiment (about 50%).
【0021】図5および図6に示すように、この中空金
属材11もまた、第1実施形態と同様に、異形断面材1
2および表面材13とそれぞれ同じ断面を有する長尺の
異形断面板17および表面板18を準備し、これらを積
層・接合した後、図6のB−B’線に沿って所定寸法に
切断することにより、製造される。この異形断面板17
もまた、例えば圧延異形加工法で製造される。As shown in FIGS. 5 and 6, this hollow metal material 11 also has the modified cross-section material 1 as in the first embodiment.
2 and the surface material 13 are provided with a long-sized irregular cross-section plate 17 and a surface plate 18, respectively, which are laminated and joined, and then cut to a predetermined dimension along the line BB 'in FIG. It is manufactured by This modified cross-section plate 17
Also, for example, it is manufactured by a rolling deformation processing method.
【0022】以上のように、本実施形態においても、第
1実施形態と同様の効果を得ることができる。また、本
実施形態によれば、第1実施形態と異なる断面形状の異
形断面材12を用いることによって、中空金属材1とは
異なるハニカム状の中空部16が得られるとともに、中
空部16の断面積比がより大きくなることで、軽量化の
度合を高めることができる。なお、圧延異形加工法など
によれば、上記2つの実施形態以外の断面形状を有する
様々な異形断面板を容易に形成できるので、適当な断面
形状の異形断面板を採用することによって、任意の断面
積比および断面形状の中空部を有する中空金属材を容易
に製造することができる。As described above, also in this embodiment, the same effect as that of the first embodiment can be obtained. Further, according to the present embodiment, by using the modified cross-section material 12 having a cross-sectional shape different from that of the first embodiment, a honeycomb-shaped hollow portion 16 different from the hollow metal material 1 is obtained, and the hollow portion 16 is cut off. By increasing the area ratio, the degree of weight reduction can be increased. According to the rolling profile processing method and the like, it is possible to easily form various profile cross-section plates having cross-sectional shapes other than those of the above two embodiments. A hollow metal material having a cross-sectional area ratio and a hollow portion having a cross-sectional shape can be easily manufactured.
【0023】なお、本発明は、説明した実施形態に限定
されることなく、種々の態様で実施することができる。
例えば、実施形態では、長尺の複数の異形断面板を積層
・接合した後に切断することによって、中空金属材を得
ているが、これらの積層・接合工程と切断工程を逆にし
てもよい。また、これまでの説明は、中空金属材を金属
材の軽量化を目的として利用する場合を中心として行っ
ているが、本発明の中空金属材は、これに限定されるも
のではなく、例えば、中空部を流体の流路として利用す
る場合などに広く適用することができる。また、実施形
態で示した中空金属材の材質などはあくまで例示であ
り、本発明は、任意の金属について適用可能である。そ
の他、本発明の趣旨の範囲内で、細部の構成を適宜、変
更することができる。The present invention is not limited to the embodiment described above and can be implemented in various modes.
For example, in the embodiment, the hollow metallic material is obtained by stacking and joining a plurality of long-sized odd-shaped cross-section plates and then cutting, but the stacking / joining step and the cutting step may be reversed. Further, the description so far has been mainly performed in the case of utilizing the hollow metal material for the purpose of reducing the weight of the metal material, the hollow metal material of the present invention is not limited to this, for example, It can be widely applied when the hollow portion is used as a fluid flow path. Further, the material of the hollow metal material shown in the embodiment is merely an example, and the present invention can be applied to any metal. Besides, the detailed configuration can be appropriately changed within the scope of the present invention.
【0024】[0024]
【発明の効果】以上詳述したように、本発明の中空金属
材およびその製造方法によれば、中空金属材を効率良く
低コストで製造できるとともに、中空部を高精度で且つ
大きな断面積比と多様な断面形状で容易に形成すること
ができるなどの効果を有する。As described above in detail, according to the hollow metal material and the method for manufacturing the same of the present invention, the hollow metal material can be efficiently manufactured at low cost, and the hollow portion can be manufactured with high accuracy and a large cross-sectional area ratio. And, it has an effect that it can be easily formed with various sectional shapes.
【図1】本発明の第1実施形態による中空金属材を示す
斜視図である。FIG. 1 is a perspective view showing a hollow metal material according to a first embodiment of the present invention.
【図2】図1の中空金属材の製造方法を示す分解斜視図
である。FIG. 2 is an exploded perspective view showing a method of manufacturing the hollow metal material of FIG.
【図3】図2の積層・接合後の状態を示す斜視図であ
る。FIG. 3 is a perspective view showing a state after stacking and joining in FIG.
【図4】本発明の第2実施形態による中空金属材を示す
斜視図である。FIG. 4 is a perspective view showing a hollow metal material according to a second embodiment of the present invention.
【図5】図4の中空金属材の製造方法を示す分解斜視図
である。5 is an exploded perspective view showing a method for manufacturing the hollow metal material of FIG.
【図6】図5の積層・接合後の状態を示す斜視図であ
る。FIG. 6 is a perspective view showing a state after stacking and joining in FIG.
1 中空金属材 2 異形断面材 2a 表面異形断面材 2b 中間異形断面材 3 突部 4 凹部 5 中空部 6 異形断面板 6a 表面異形断面板 6b 中間異形断面板 11 中空金属材 12 異形断面材 14a 突部 14b 突部 15 凹部 16 中空部 17 異形断面板 1 Hollow metal material 2 Deformed cross-section material 2a Surface profile section material 2b Intermediate profile material 3 protrusions 4 recess 5 Hollow part 6 Deformed cross-section plate 6a Surface irregular cross-section plate 6b Intermediate deformed section plate 11 Hollow metal material 12 Deformed cross-section material 14a protrusion 14b protrusion 15 recess 16 Hollow part 17 Deformed cross-section plate
Claims (3)
をそれぞれ有し、前記凹部により中空部が画成されるよ
うに前記突部が互いに接合された状態で積層された金属
製の複数の異形断面材で構成されていることを特徴とす
る中空金属材。1. A plurality of metal members each having a predetermined cross-sectional shape including a protrusion and a recess, and stacked in a state in which the protrusions are joined to each other so that a hollow portion is defined by the recess. A hollow metal material, characterized in that it is composed of a modified cross-section material.
部を備えた所定の断面形状をそれぞれ有する金属製の複
数の異形断面板を準備し、 これら複数の異形断面板を、前記凹部により中空部が画
成されるように前記突部が互いに接した状態で積層し、 積層した前記複数の異形断面板の互いに接する前記突部
同士を接合し、 接合した前記複数の異形断面板を所定寸法に切断するこ
とを特徴とする中空金属材の製造方法。2. A plurality of metal modified cross-section plates each having a predetermined cross-sectional shape including a protrusion and a recess extending continuously in the length direction are prepared, and the plurality of modified cross-section plates are formed by the recesses. The protrusions are stacked in a state of being in contact with each other so as to define a hollow portion, the protrusions that are in contact with each other of the plurality of stacked variant cross-section plates are joined, and the plurality of joined variant cross-section plates are predetermined. A method for producing a hollow metal material, which comprises cutting to a size.
て形成することを特徴とする、請求項2に記載の中空金
属材の製造方法。3. The method for producing a hollow metal material according to claim 2, wherein the profiled cross-section plate is formed by a rolling profile processing method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP23725098A JP3800468B2 (en) | 1998-08-24 | 1998-08-24 | Method for producing hollow metal material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23725098A JP3800468B2 (en) | 1998-08-24 | 1998-08-24 | Method for producing hollow metal material |
Publications (2)
Publication Number | Publication Date |
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JP2000061568A true JP2000061568A (en) | 2000-02-29 |
JP3800468B2 JP3800468B2 (en) | 2006-07-26 |
Family
ID=17012632
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Application Number | Title | Priority Date | Filing Date |
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JP23725098A Expired - Fee Related JP3800468B2 (en) | 1998-08-24 | 1998-08-24 | Method for producing hollow metal material |
Country Status (1)
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JP (1) | JP3800468B2 (en) |
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1998
- 1998-08-24 JP JP23725098A patent/JP3800468B2/en not_active Expired - Fee Related
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JP3800468B2 (en) | 2006-07-26 |
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