JP3361363B2 - Manufacturing method of automobile frame - Google Patents
Manufacturing method of automobile frameInfo
- Publication number
- JP3361363B2 JP3361363B2 JP19634593A JP19634593A JP3361363B2 JP 3361363 B2 JP3361363 B2 JP 3361363B2 JP 19634593 A JP19634593 A JP 19634593A JP 19634593 A JP19634593 A JP 19634593A JP 3361363 B2 JP3361363 B2 JP 3361363B2
- Authority
- JP
- Japan
- Prior art keywords
- bonnet
- intermediate product
- manufacturing
- whole
- stiffener
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/14—Making other products
- B21C23/142—Making profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/02—Removing or drawing-off work
- B21C35/023—Work treatment directly following extrusion, e.g. further deformation or surface treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Body Structure For Vehicles (AREA)
- Extrusion Of Metal (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はアルミニウム合金材を材
料とした自動車用フレームの製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an automobile frame made of an aluminum alloy material.
【０００２】[0002]
【従来の技術】押出し成形法にて製造した自動車用フレ
ームを適用したものが特開平１−２０４８６８号公報に
開示されている。また、ボンネット、トランク、ドア或
いはインナーパネル等の板状部品は一般にプレス成形が
適用され、凹凸を設けることで剛性を高めるようにして
いる。2. Description of the Related Art An automobile frame manufactured by an extrusion molding method is disclosed in JP-A-1-204868. Further, plate-shaped parts such as a bonnet, a trunk, a door, an inner panel and the like are generally formed by press molding, and are provided with irregularities to enhance rigidity.
【０００３】[0003]
【発明が解決しようとする課題】上述した押出し成形法
による場合には、角筒状等の閉断面形状の製品が製造で
きるため、剛性に優れたフレームを得ることができる
が、押出し成形法の特性から形状は直線状となり、この
ため前記ボンネット等の曲面形状の板状部品を支持する
フレームとして用いるには別途取付け部材を介在させな
ければならず、部品点数の増加、組立ての複雑化を招
き、適用できる箇所も限られている。一方、曲面形状の
板状部品をプレス成形する際にリブなどを設ける手段で
は、プレス成形法の特性から成形品の形状は開断面形状
となり、十分な剛性を得にくく、十分な剛性を得るため
には肉厚を厚くしなければならない。In the case of the extrusion molding method described above, since a product having a closed cross-sectional shape such as a square tube can be manufactured, a frame having excellent rigidity can be obtained. Due to the characteristics, the shape is linear. Therefore, in order to use it as a frame to support the curved plate-shaped parts such as the bonnet, a separate mounting member must be interposed, resulting in an increase in the number of parts and complication of assembly. The applicable areas are also limited. On the other hand, by means of providing ribs etc. when press-molding a curved plate-shaped part, the shape of the molded product becomes an open cross-section due to the characteristics of the press-molding method, making it difficult to obtain sufficient rigidity and to obtain sufficient rigidity. The wall thickness must be increased.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決すべく本
発明は、請求項１ではアルミニウム合金材を押出し成形
して板状部と筒状の閉断面部とが一体となるとともに全
体として平板状をなす中間品を製造し、次いでこの中間
品にプレス加工を施すことで部品取付け部を形成すると
同時に全体として押出し成形方向に湾曲させるようにし
たことを特徴とする。 請求項２では、請求項１におい
て、前記フレームはボンネットスティフナーであり、前
記プレス加工によって、前記部品取付け部、ビード部及
びヘミング部を形成するようにしたことを特徴とする。 In order to solve the above-mentioned problems, according to the present invention, in claim 1, an aluminum alloy material is extruded to form a plate-shaped portion and a cylindrical closed cross-section portion, and a flat plate as a whole. If a part mounting part is formed by manufacturing an intermediate product that has a shape and then pressing this intermediate product
At the same time , it is characterized in that it is curved as a whole in the extrusion molding direction . In claim 2, in claim 1
And the frame is a bonnet stiffener,
By the above-mentioned press working, the part mounting part, the bead part and the
And a hemming portion are formed.
【０００５】[0005]
【作用】押出し成形にて得られた中間品を塑性加工する
ことで、剛性に優れ、形状の自由度の高い自動車用フレ
ームが得られる。[Function] By subjecting the intermediate product obtained by extrusion molding to plastic working, an automobile frame having excellent rigidity and a high degree of freedom in shape can be obtained.
【０００６】[0006]
【実施例】以下に本発明の実施例を添付図面に基づいて
説明する。ここで、図１はアルミニウム合金材を押出し
成形して得られた中間品の端面図、図２は同中間品の斜
視図、図３は同中間品をプレス加工して得られたボンネ
ットスティフナーの斜視図である。Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is an end view of an intermediate product obtained by extruding an aluminum alloy material, FIG. 2 is a perspective view of the intermediate product, and FIG. 3 is a bonnet stiffener obtained by pressing the intermediate product. It is a perspective view.
【０００７】先ず本発明にあっては、図１、図２に示す
ように中間品１をアルミニウム合金材を押出し成形す
る。この中間品１は板状部２の一部に閉断面部３（ボッ
クス部）を連続して一体的に成形している。First, in the present invention, as shown in FIGS. 1 and 2, an intermediate product 1 is formed by extruding an aluminum alloy material. In this intermediate product 1, a closed cross-section portion 3 (box portion) is continuously formed integrally with a part of a plate-shaped portion 2.
【０００８】上記の押出し成形で得られた中間品１は全
体として平板状をなしている。そこでこの中間品１に塑
性加工を施す。塑性加工としては例えばプレス成形（液
圧成形、バルジ成形を含む）を行う。そして、中間品１
をプレス成形することで、図３に示すように全体として
湾曲するとともにストライカー取付け部４、フードスト
ッパ取付け部５、ビード部６及びヘミング部７を形成し
たボンネットスティフナー１０が得られる。The intermediate product 1 obtained by the above extrusion molding has a flat plate shape as a whole. Therefore, the intermediate product 1 is subjected to plastic working. As the plastic working, for example, press forming (including hydraulic forming and bulge forming) is performed. And the intermediate product 1
As shown in FIG. 3, the bonnet stiffener 10 that is curved as a whole and has the striker mounting portion 4, the hood stopper mounting portion 5, the bead portion 6 and the hemming portion 7 is obtained by press molding.
【０００９】図４は上記ボンネットスティフナー１０を
ボンネットスキン１１に取付けた状態の斜視図、図５は
同状態の縦断面図であり、ボンネットスキン１１は例え
ばボンネットスティフナー１０と同じアルミニウム合金
材をプレス成形して得られ、前端部をボンネットスティ
フナー１０のヘミング部７に折り返して固着している。FIG. 4 is a perspective view of the bonnet stiffener 10 attached to the bonnet skin 11, and FIG. 5 is a vertical cross-sectional view of the same. The bonnet skin 11 is, for example, the same aluminum alloy material as the bonnet stiffener 10 is press-molded. Then, the front end portion is folded back and fixed to the hemming portion 7 of the bonnet stiffener 10.
【００１０】更にボンネットスティフナー１０よりも後
のボンネットスキン１１裏面には圧延材をプレス成形し
た第２のボンネットスティフナー１２を設けている。従
来にあってはこの第２のボンネットスティフナー１２が
ボンネットスティフナー１０の位置まで伸びており、ボ
ンネットの剛性を維持するようになっていたが、この実
施例にあっては、押出し成形したボンネットスティフナ
ー１０を高い剛性が要求されるボンネットのフロント部
に設けているので、第２のボンネットスティフナー１２
の厚さは薄くすることができる。A second bonnet stiffener 12 formed by press-molding a rolled material is provided on the rear surface of the bonnet skin 11 after the bonnet stiffener 10. In the prior art, the second bonnet stiffener 12 extends to the position of the bonnet stiffener 10 to maintain the rigidity of the bonnet, but in this embodiment, the extruded bonnet stiffener 10 is used. Is installed in the front part of the bonnet that requires high rigidity, so the second bonnet stiffener 12
The thickness of can be reduced.
【００１１】[0011]
【発明の効果】以上に説明したように本発明によれば、
アルミニウム合金材を押出し成形して板状部と筒状の閉
断面部とが一体となるとともに全体として平板状をなす
中間品を製造し、次いでこの中間品にプレス加工を施す
ことで部品取付け部を形成すると同時に全体として押出
し成形方向に湾曲させるようにしたので、ボンネット、
トランク、ドア或いはインナーパネル等の曲面形状の板
状部品を支持するフレームとして、剛性に優れ、形状の
自由度の高い自動車用フレームが得られる。また、従来
の圧延材をプレス成形したものに比べ歩留りが大幅に向
上しコストダウンが図れる。As described above, according to the present invention,
The aluminum alloy material to manufacture the intermediate product forms a flat shape as a whole with by extrusion and closed cross-section portion of the plate-like portion and the tubular to be integrated, then the component attachment portion by performing press working on this intermediate product At the same time as forming the bonnet, it is curved in the extrusion molding direction as a whole.
As a frame for supporting a curved plate-shaped component such as a trunk, a door, or an inner panel, an automobile frame having excellent rigidity and a high degree of freedom in shape can be obtained. Further, the yield is significantly improved and the cost can be reduced as compared with the conventional rolled material which is press-formed.
【図１】アルミニウム合金材を押出し成形して得られた
中間品の端面図FIG. 1 is an end view of an intermediate product obtained by extruding an aluminum alloy material.
【図２】同中間品の斜視図FIG. 2 is a perspective view of the intermediate product.
【図３】同中間品をプレス加工して得られたボンネット
スティフナーの斜視図FIG. 3 is a perspective view of a bonnet stiffener obtained by pressing the intermediate product.
【図４】ボンネットにボンネットスティフナーを取付け
た状態の斜視図FIG. 4 is a perspective view showing a state in which a bonnet stiffener is attached to the bonnet.
【図５】ボンネットにボンネットスティフナーを取付け
た状態の縦断面図FIG. 5 is a vertical sectional view showing a state where a bonnet stiffener is attached to the bonnet.
１…中間品、２…板状部、３…閉断面部、４，５…部品
取付け部、６…ビード部、７…ヘミング部、１０…ボン
ネットスティフナー、１１…ボンネットスキン。DESCRIPTION OF SYMBOLS 1 ... Intermediate product, 2 ... Plate-shaped part, 3 ... Closed cross-section part, 4, 5 ... Component mounting part, 6 ... Bead part, 7 ... Hemming part, 10 ... Bonnet stiffener, 11 ... Bonnet skin.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 潮田 俊太 堺市海山町６丁224番地 昭和アルミニ ウム株式会社内 (56)参考文献 特開 昭64−44232（ＪＰ，Ａ) 特開 昭59−113164（ＪＰ，Ａ) 特開 平５−57387（ＪＰ，Ａ) 実開 平５−32045（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B21C 23/14 B62D 21/00 B62D 65/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shunta Ushida 6-224 Kaiyamacho, Sakai City Showa Aluminum Co., Ltd. (56) References JP-A-4444232 (JP, A) JP-A-59-113164 (JP, A) JP-A-5-57387 (JP, A) Actual development: 5-32045 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) B21C 23/14 B62D 21 / 00 B62D 65/00
Claims (2)
状部と筒状の閉断面部とが一体となるとともに全体とし
て平板状をなす中間品を製造し、 次 いでこの中間品にプレス加工を施すことで部品取付け
部を形成すると同時に全体として押出し成形方向に湾曲
させるようにした、 こ とを特徴とする自動車用フレームの製造方法。1. A aluminum alloy material by extrusion molding and closed cross-section portion of the plate-like portion and the tubular manufactured intermediate product which forms a flat shape as a whole with the integral, the pressing following Ide in this intermediate product Parts are attached by applying
Parts were to be curved in the extrusion direction as a whole at the same time to form a method of manufacturing a motor vehicle frame, wherein the this.
であり、前記プレス加工によって、前記部品取付け部、
ビード部及びヘミング部を形成するようにしたことを特
徴とする請求項１に記載の自動車用フレームの製造方
法。Wherein said frame is Ri bonnet stiffener der, by the flop-less processing, the component mounting portion,
The method for manufacturing an automobile frame according to claim 1, wherein the bead portion and the hemming portion are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19634593A JP3361363B2 (en) | 1993-08-06 | 1993-08-06 | Manufacturing method of automobile frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19634593A JP3361363B2 (en) | 1993-08-06 | 1993-08-06 | Manufacturing method of automobile frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0747420A JPH0747420A (en) | 1995-02-21 |
| JP3361363B2 true JP3361363B2 (en) | 2003-01-07 |
Family
ID=16356298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19634593A Expired - Fee Related JP3361363B2 (en) | 1993-08-06 | 1993-08-06 | Manufacturing method of automobile frame |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3361363B2 (en) |
-
1993
- 1993-08-06 JP JP19634593A patent/JP3361363B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0747420A (en) | 1995-02-21 |
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