JPH0661587B2 - Bulge processing method - Google Patents
Bulge processing methodInfo
- Publication number
- JPH0661587B2 JPH0661587B2 JP61241392A JP24139286A JPH0661587B2 JP H0661587 B2 JPH0661587 B2 JP H0661587B2 JP 61241392 A JP61241392 A JP 61241392A JP 24139286 A JP24139286 A JP 24139286A JP H0661587 B2 JPH0661587 B2 JP H0661587B2
- Authority
- JP
- Japan
- Prior art keywords
- tubular material
- tubular
- bulge
- accessory
- bulging
- 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 - Lifetime
Links
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） 本発明は、バルジ加工を行なう管状素材の周面に他の付
帯部材を一体に接合固着するバルジ加工方法に関する。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a bulging method for integrally joining and fixing other auxiliary members to the peripheral surface of a tubular material for bulging.
（従来の技術） 例えば自動車用吸気ダクトのように、管状製品の周面に
他の部材を取付けるためのブラケットやナットの付帯部
材を取付ける必要がある場合が多い。(Prior Art) It is often necessary to attach a bracket for attaching other members to a peripheral surface of a tubular product or an accessory member such as a nut, such as an intake duct for an automobile.
このような付帯部材の取付けは、その付帯部材を管状素
材の周面に溶接により一体的に固着させており、また付
帯部品がリング状の部材であるときは、管状素材の周面
にかしめ手法により一体化させるようになされている。The attachment of such an accessory member is performed by integrally fixing the accessory member to the peripheral surface of the tubular material by welding, and when the accessory component is a ring-shaped member, a caulking method on the peripheral surface of the tubular material. It is designed to be integrated.
（発明が解決しようとする問題点） しかして、前者のように付帯部材を溶接により一体化さ
せる手段では、その付帯部材の数が少ない場合はまだし
も、その数が多いと溶接に要する工程が増し、量産性に
欠けるものとなってコストアップに連なるとともに、溶
接による高熱により管状素材を劣化させるという問題が
ある。(Problems to be Solved by the Invention) With the means for integrating the auxiliary members by welding as in the former case, if the number of the additional members is small, the number of steps required for welding increases if the number is large. However, there is a problem in that the mass production becomes poor and the cost increases, and the tubular material is deteriorated by the high heat generated by welding.
また、後者のかしめ手法により一体化させる手段では、
管状素材の劣化はないものゝ、付帯部材がリング状をな
していることが必須の条件となり、ブラケットやナット
部材のように管状素材の周面の一部に固着させる付帯部
材の場合には適用することができないという制約があ
る。Also, in the latter means for integrating by caulking,
Even if the tubular material does not deteriorate, it is an essential condition that the accessory member has a ring shape, and it is applicable in the case of an accessory member that is fixed to a part of the peripheral surface of the tubular material such as a bracket or a nut member. There is a constraint that you cannot do it.
本発明はこれに鑑み、バルジ加工技術を利用して多数の
ブラケットのような付帯部材であっても管状素材の周面
に一体に取付けることのできるバルジ加工方法を提供す
るにある。In view of this, the present invention is to provide a bulging method that can be integrally attached to the peripheral surface of a tubular material by using bulging technology, even with a number of accessory members such as brackets.
（問題点を解決するための手段） 上記従来技術の問題点を解決するため、本発明において
は、管状素材および付帯部材には通常の金属材料を用
い、接合部のみに超塑性材を用いうるようにし、バルジ
加工により管状素材を付形すべき型部、および管状素材
の周面に取付けるべき付帯部材を納める付帯部材収納保
持部を設けたバルジ型を用い、このバルジ型内の付帯部
材収納保持部に付帯部材を装入してこの付帯部材とバル
ジ型内に装入される管状素材の周面との間に超塑性材を
介在させ、前記付帯部材、超塑性材、および管状素材を
加熱軟化させたのち管状素材内に高圧流体を圧入して管
状素材の膨出圧力により前記超塑性材を介し付帯部材と
管状素材とを一体に接合固着することを特徴とするもの
である。(Means for Solving Problems) In order to solve the problems of the above-mentioned conventional techniques, in the present invention, a normal metal material may be used for the tubular material and the auxiliary member, and a superplastic material may be used only for the joint portion. In this way, a bulge type is provided which has a mold part for shaping the tubular material by bulging and an accessory member storage holding part for accommodating the accessory member to be attached to the peripheral surface of the tubular material. The auxiliary member is inserted into the holding part, and a superplastic material is interposed between the auxiliary member and the peripheral surface of the tubular material to be inserted into the bulge mold, and the auxiliary member, the superplastic material, and the tubular material are After being softened by heating, a high-pressure fluid is press-fitted into the tubular material, and the auxiliary member and the tubular material are integrally bonded and fixed together by the bulging pressure of the tubular material via the superplastic material.
（作用） 上記の方法をとることにより、管材の周面に多数の付帯
部材を取付けるに際しバルジ型の付帯部材収納保持部に
予め用意された付帯部材を挿入し、この付帯部材の管状
素材への接合面に超塑性材を載せてバルジ型内に管状素
材を挿入し、この付帯部材の部位を加熱して融点を一致
させ、管状素材内に高圧流体を圧入することにより管状
素材が成形用型部内に膨出してバルジ成形が行なわれる
と同時に付帯部材の接合面に圧接され、これにより超塑
性材が接着材として機能して管状素材と付帯部材とが分
子拡散接合により一体化される。(Operation) By adopting the above method, when a large number of accessory members are attached to the peripheral surface of the pipe member, the accessory member prepared in advance is inserted into the bulge-type accessory member storage / holding unit, and the accessory member is attached to the tubular material. The superplastic material is placed on the joint surface, the tubular material is inserted into the bulge mold, the part of this auxiliary member is heated to match the melting points, and the high-pressure fluid is pressed into the tubular material to form the tubular material in the molding die. At the same time as the bulge is formed in the portion and bulging is performed, it is pressed against the joint surface of the accessory member, whereby the superplastic material functions as an adhesive and the tubular material and the accessory member are integrated by molecular diffusion bonding.
（実施例） 以下、本発明の実施例を図面を参照して説明する。(Example) Hereinafter, the Example of this invention is described with reference to drawings.
第１図は本発明を実施する場合のバルジ型の縦断面を示
し、第２図は同横断面を示している。FIG. 1 shows a vertical cross section of a bulge type for carrying out the present invention, and FIG. 2 shows the same horizontal cross section.
バルジ型１は軸方向に２分された２つの型材１Ａ、１Ｂ
で構成され、その合せ面に管状素材２を装填する管状素
材装填部３を有し、この装填部３の内面にはバルジ加工
により成形すべき所要形状および数の型部４が形成され
ている。The bulge mold 1 is composed of two mold members 1A and 1B that are axially bisected.
Has a tubular material loading section 3 for loading the tubular material 2 on its mating surface, and the inner surface of the loading section 3 is formed with the required shape and number of mold sections 4 to be formed by bulging. .
また、上記管状素材装填部３の内面他所には、第３図に
その部分の拡大図を示すように、ブラケット等の付帯部
材５を装填する付帯部材収納保持部６が形成されてい
る。この収納保持部６は、付帯部材５が可及的密に嵌合
し得る凹状に形成され、この付帯部材５の管状素材２へ
の接合面５Ａは、管状素材２の周面の曲面に一致する凹
曲面状に予備成形されていて、その接合面５Ａが管状素
材装填部３に露呈されるようになっている。In addition, as shown in an enlarged view of that portion in FIG. 3, an accessory member storage holding portion 6 for loading an accessory member 5 such as a bracket is formed on the inner surface of the tubular material loading portion 3 and elsewhere. The storage holding portion 6 is formed in a concave shape so that the auxiliary member 5 can be fitted as tightly as possible, and the joining surface 5A of the auxiliary member 5 to the tubular material 2 matches the curved surface of the peripheral surface of the tubular material 2. It is preformed in a concave curved surface shape, and its joint surface 5A is exposed to the tubular material loading portion 3.
この付帯部材収納保持部６が設けられる部位のバルジ型
１にはバルジ型加熱用ヒータ７が付設され、この付帯部
材収納保持部６の近傍には加熱温度を所定値に保つため
の温度測定用熱電対８が設けられている。A bulge-type heater 7 is attached to the bulge mold 1 at the portion where the accessory member storage / holding portion 6 is provided, and a temperature measurement for maintaining the heating temperature at a predetermined value is provided in the vicinity of the accessory member storage / holding portion 6. A thermocouple 8 is provided.
第１図および第２図に示されるように、収納保持部６
は、その内部に付帯部材５を収納したときその接合面５
Ａが管状素材装填部３の内面よりやゝ没入した位置にお
かれるようになっている。As shown in FIGS. 1 and 2, the storage holding portion 6
When the accessory member 5 is housed inside, the joint surface 5
A is located at a position slightly retracted from the inner surface of the tubular material loading portion 3.
図において９は超塑性材を示している。この超塑性材９
としては、アルミニウム合金、チタン合金等の微細結晶
粒超塑性合金であり、高温（５５０℃）で５００％以上
の伸びを示す延性を持ち、加熱により他の金属と融合し
て、加圧により一体化させる接着機能を有するものであ
る。In the figure, 9 indicates a superplastic material. This superplastic material 9
Is a fine-grain superplastic alloy such as aluminum alloy or titanium alloy, which has ductility that shows elongation of 500% or more at high temperature (550 ° C), is fused with other metals by heating, and is integrated by pressing. It has an adhesive function of turning into a solid.
したがってこの超塑性材９を付帯部材５の接合面５Ａと
管状素材装填部３に装填される管状素材２の周面との間
に介在させ、ヒータ７に通電してバルジ型１を加熱し、
超塑性材９を軟化させてのち管状素材２内に通常のバル
ジ加工と同様に高圧流体を圧入することにより管状素材
２が型部４内に膨出してバルジ加工が行なわれると同時
に、超塑性材９が管状素材２の周面により加圧されて管
状素材２と付帯部材５とが超塑性材９を接着材として両
部材２，５に融合し、一体化される。Therefore, the superplastic material 9 is interposed between the joining surface 5A of the accessory member 5 and the peripheral surface of the tubular material 2 loaded in the tubular material loading portion 3, and the heater 7 is energized to heat the bulge die 1.
After softening the superplastic material 9 and then pressurizing a high-pressure fluid into the tubular material 2 in the same manner as in normal bulging, the tubular material 2 bulges into the die portion 4 and bulging is performed, and at the same time, the superplasticity is increased. The material 9 is pressed by the peripheral surface of the tubular material 2, and the tubular material 2 and the auxiliary member 5 are fused and integrated with both members 2 and 5 using the superplastic material 9 as an adhesive material.
こうして成形したのちバルジ型１を解体し、管状素材２
を取出せば、第４図に示すようにバルジ加工によって形
成された膨出突部１０、および超塑性材９を介して固着
された付帯部材５を有する管状製品が得られる。After molding in this way, the bulge mold 1 is dismantled and the tubular material 2
When taken out, as shown in FIG. 4, a tubular product having a bulging protrusion 10 formed by bulging and an auxiliary member 5 fixed via a superplastic material 9 is obtained.
なお、図示の実施例では、バルジ成形用型部４および付
帯部材５を代表例として１個宛設けた場合について示し
たが、管状製品によっては複数設けることは任意であ
る。In the illustrated embodiment, one bulge forming mold 4 and one additional member 5 are provided as a representative example, but a plurality of bulge forming molds 4 and additional members 5 may be provided depending on the tubular product.
以上説明したように、本発明によるバルジ加工方法は、
バルジ加工により管状素材を付形すべき型部および管状
素材の周面に取付けるべき付帯部材を納める付帯部材収
納保持部を設けたバルジ型を用い、このバルジ型内の付
帯部材収納保持部に付帯部材を装入し、両者の接合面間
に超塑性材を用いるのみで接合部位を加熱軟化させたの
ち管状部材内に高圧流体を圧入して管状素材の膨出圧力
により前記付帯部材と管状素材とを一体に接合固着する
ようにしたので、管状素材の周面の周方向の一部に取付
ける付帯部材であっても、バルジ加工によって固着する
ことができ、特に管状素材の周面に多数の付帯部材を取
付ける場合にいちいち溶接により固着させる従来の取付
けに比しバルジ加工と同時に一挙に固着させることがで
きるので、付帯部材の取付作業の能率を大幅に向上する
ことができる優れた効果がある。As described above, the bulging method according to the present invention is
A bulge type is used which is provided with a mold part for shaping the tubular material by bulging and an accessory member storage holding part for storing the accessory member to be attached to the peripheral surface of the tubular material. After the member is charged and the joining portion is heated and softened only by using a superplastic material between the joining surfaces of the two members, the high-pressure fluid is pressed into the tubular member and the bulging pressure of the tubular material causes the auxiliary member and the tubular material. Since and are integrally joined and fixed, even an auxiliary member attached to a part of the peripheral surface of the tubular material in the circumferential direction can be fixed by bulging, and particularly a large number of them can be attached to the peripheral surface of the tubular material. Compared to the conventional mounting method in which accessory members are fixed by welding, they can be fixed all at once at the same time as bulging, so it is possible to greatly improve the efficiency of attachment work of accessory members. There is an effect.
第１図は本発明方法の一実施態様を示す縦断面図、第２
図は第１図II-II線担当部分の横断面図、第３図は同付
帯部材収納保持部、付帯部材、超塑性材の部分拡大斜視
図、第４図は本発明方法によって得た管状製品の一例を
示す斜視図である。 １……バルジ型、１Ａ，１Ｂ……型材、２……管状素
材、３……管状素材装填部、４……型部、５……付帯部
材、５Ａ……接合面、６……付帯部材収納保持部、７…
…バルジ型加熱用ヒータ、８……温度測定用熱電対、９
……超塑性材、１０……膨出突部。FIG. 1 is a longitudinal sectional view showing one embodiment of the method of the present invention,
Fig. 1 is a cross-sectional view of the portion in charge of the line II-II in Fig. 1, Fig. 3 is a partially enlarged perspective view of the accommodating and accommodating member holding member, the accommodating member, and the superplastic material. It is a perspective view showing an example of a product. 1 ... Bulge type, 1A, 1B ... Mold material, 2 ... Tubular material, 3 ... Tubular material loading section, 4 ... Mold section, 5 ... Supplementary member, 5A ... Joining surface, 6 ... Supplementary member Storage holder, 7 ...
… Bulge type heating heater, 8 …… Temperature measuring thermocouple, 9
...... Superplastic material, 10 …… Bulging protrusion.
Claims (1)
部、および管状素材の周面に取付けるべき付帯部材を納
める付帯部材収納保持部を設けたバルジ型を用い、この
バルジ型内の付帯部材収納保持部に付帯部材を装入して
この付帯部材とバルジ型内に装入される管状素材の周面
との間に超塑性材を介在させ、前記付帯部材、超塑性
材、および管状素材を加熱軟化させたのち管状素材内に
高圧流体を圧入して管状素材の膨出圧力により前記超塑
性材を介し付帯部材と管状素材とを一体に接合固着する
ことを特徴とするバルジ加工方法。1. A bulge mold provided with a mold part for shaping a tubular material by bulge processing and an accessory member storing and holding part for accommodating an accessory member to be attached to a peripheral surface of a tubular material, the accessory part within the bulge mold being used. The auxiliary member is inserted into the member storage / holding portion, and a superplastic material is interposed between the auxiliary member and the peripheral surface of the tubular material to be inserted into the bulge mold, and the auxiliary member, the superplastic material, and the tubular member. A bulging method characterized in that after the material is heated and softened, a high-pressure fluid is press-fitted into the tubular material and the auxiliary member and the tubular material are integrally bonded and fixed together by the bulging pressure of the tubular material via the superplastic material. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61241392A JPH0661587B2 (en) | 1986-10-13 | 1986-10-13 | Bulge processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61241392A JPH0661587B2 (en) | 1986-10-13 | 1986-10-13 | Bulge processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6397317A JPS6397317A (en) | 1988-04-28 |
| JPH0661587B2 true JPH0661587B2 (en) | 1994-08-17 |
Family
ID=17073598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61241392A Expired - Lifetime JPH0661587B2 (en) | 1986-10-13 | 1986-10-13 | Bulge processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0661587B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4412108C1 (en) * | 1994-04-08 | 1995-11-02 | Porsche Ag | Roll bars for a motor vehicle |
| GB9727063D0 (en) * | 1997-12-23 | 1998-02-18 | Gkn Sankey Ltd | A hydroforming process |
| JP4541576B2 (en) * | 2001-02-26 | 2010-09-08 | 富士重工業株式会社 | Method for integrally forming superplastic metal |
| JP4473705B2 (en) * | 2003-12-19 | 2010-06-02 | 新日本製鐵株式会社 | Hydroform processing method, hydroform molded article and structure |
| JP6970163B2 (en) * | 2015-03-31 | 2021-11-24 | 住友重機械工業株式会社 | Molding equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3920175A (en) * | 1974-10-03 | 1975-11-18 | Rockwell International Corp | Method for superplastic forming of metals with concurrent diffusion bonding |
| JPS61115628A (en) * | 1984-11-08 | 1986-06-03 | Sumitomo Metal Ind Ltd | Manufacture of pipe having non-circular sectional form made of alpha+beta type titanium alloy |
-
1986
- 1986-10-13 JP JP61241392A patent/JPH0661587B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6397317A (en) | 1988-04-28 |
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