JPH09126220A - Torque rod - Google Patents
Torque rodInfo
- Publication number
- JPH09126220A JPH09126220A JP28157095A JP28157095A JPH09126220A JP H09126220 A JPH09126220 A JP H09126220A JP 28157095 A JP28157095 A JP 28157095A JP 28157095 A JP28157095 A JP 28157095A JP H09126220 A JPH09126220 A JP H09126220A
- Authority
- JP
- Japan
- Prior art keywords
- rod
- torque rod
- friction
- steel
- friction welding
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/10—Constructional features of arms
- B60G2206/11—Constructional features of arms the arm being a radius or track or torque or steering rod or stabiliser end link
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車のトルクロ
ッドに関し、詳しくは、別体に製作した連結部とロッド
部とを摩擦圧接により一体化したトルクロッドに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor vehicle torque rod, and more particularly to a torque rod in which a connecting portion and a rod portion, which are separately manufactured, are integrated by friction welding.
【０００２】[0002]
【従来の技術】従来、両側部に目玉部形状の連結部があ
り、この連結部をロッド部で接続した構造を有する自動
車用のトルクロッドは、連結部とロッド部とを鍛造また
は鋳造にて一体にて成形し、その後機械加工を施して製
造される。2. Description of the Related Art Conventionally, a torque rod for an automobile having a connecting portion in the shape of an eyeball portion on both sides and connecting the connecting portion with a rod portion is manufactured by forging or casting the connecting portion and the rod portion. It is manufactured by integrally molding and then machining.
【０００３】ところで、近年、鋼材料どうしを摩擦圧接
によって良好に接合する試みが行われている。例えば、
特開昭６２−１９７２８７公報には、ロッド本体の端部
に位置する連結部を、中央部に位置する胴部に対して軸
方向に分割し、次いで連結部の軸方向外端部を所定の形
状に加工し、次いで加工された連結部の軸方向外端部を
胴部の軸方向外端部とを軸方向に突き合わせて摩擦圧接
すると共に、両突き合わせを半径方向に膨出形成した車
両用連結ロッドの端部成形方法により、各分割部品のう
ち一部を変更することにより、多種類の連結ロッドが得
られるとの開示がある。By the way, in recent years, attempts have been made to satisfactorily bond steel materials together by friction welding. For example,
In Japanese Unexamined Patent Publication No. 62-197287, the connecting portion located at the end portion of the rod body is axially divided with respect to the body portion located at the central portion, and then the axially outer end portion of the connecting portion is predetermined. For a vehicle that has been machined into a shape and then frictionally welded by axially abutting the axially outer end of the machined connecting portion with the axially outer end of the body and bulging both butts in the radial direction. There is a disclosure that various types of connecting rods can be obtained by partially changing some of the divided parts according to the method of forming the end portion of the connecting rod.
【０００４】[0004]
【発明が解決しようとする課題】上記特開昭６２−１９
７２８７号公報は、明細書中に記載はないが、鋼系材ど
うしを摩擦圧接するものであり、鋳鉄材と鋼系材とにつ
いての開示はなく、この特開昭６２−１９７２８７号公
報をそのまま球状黒鉛鋳鉄と鋼系材に適用しても組織上
および強度上良好な摩擦圧接を行うことはできない。本
発明は上記課題についてなされたものであり、組織上お
よび強度上良好に摩擦圧接し、しかも軽量化が図れるト
ルクロッドを提供することを目的とする。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
No. 7287, although not described in the specification, is for friction-welding steel-based materials to each other, and there is no disclosure of cast iron materials and steel-based materials, and the Japanese Patent Laid-Open No. 62-197287 is directly used. Even when applied to spheroidal graphite cast iron and steel materials, good friction welding cannot be performed in terms of structure and strength. The present invention has been made to solve the above problems, and an object of the present invention is to provide a torque rod that can be frictionally welded favorably in terms of structure and strength and can be made lightweight.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、鋳鉄材の
うち球状黒鉛鋳鉄と鋼系材を通常の摩擦圧接で行うと、
球状黒鉛鋳鉄の中にある黒鉛が、アップセット圧（圧接
圧）により圧縮されて薄膜となって潤滑層が形成され、
摩擦圧接法の本来の利点である集中的な摩擦と発熱を阻
害していると考えた。そして、摩擦圧接の条件を種々検
討した結果、アプセット圧を鋼系材どうしの場合よりも
高目で、短い時間に設定することにより、球状黒鉛鋳鉄
と鋼系材の両部材の摩擦熱により再溶解した溶融層が外
部に押し出され、摩擦圧接する接合部がほとんど固相接
合に近い状態に確保でき、チルが発生せず、接合も良好
であるとの知見を得た。Means for Solving the Problems The present inventors have found that when spheroidal graphite cast iron and steel-based material among cast iron materials are subjected to normal friction welding,
Graphite in spheroidal graphite cast iron is compressed by upset pressure (pressure contact pressure) to form a thin film, forming a lubricating layer,
It was thought that it hindered the concentrated friction and heat generation, which are the original advantages of the friction welding method. As a result of various studies on the conditions of friction welding, the upset pressure was set to be higher than that for steel-based materials and set to a shorter time, so that the friction heat of both the spheroidal graphite cast iron and the steel-based material caused a re-upset. It was found that the melted molten layer was extruded to the outside, the joint portion to be frictionally welded could be secured in a state almost similar to solid-phase joining, chill did not occur, and the joining was good.
【０００６】そして、自動車用のトルクロッドのように
約０．８〜２メートルと長大で重量のある部品を２以上
の別体とし、特に端部の連結部（目玉部）を球状黒鉛鋳
鉄で製作して、摩擦圧接により接合すれば、造型現場で
の非常に大きな鋳枠を必要とせず、また球状黒鉛鋳鉄が
従来材よりも軽量であるため、自動車の軽量化にも効果
を奏することに着目し、本発明に想到した。即ち、本発
明のトルクロッドは、球状黒鉛鋳鉄製からなり端部に位
置する連結部と、鋼系材からなり中間部に位置するロッ
ド部が、摩擦圧接により一体化としてなることを特徴と
する。そして、トルクロッドの摩擦圧接部は、チルが存
在せず、固相接合に近い接合で形成されていることを特
徴とする。[0006] Further, a large and heavy component such as a torque rod for automobiles having a length of about 0.8 to 2 meters is separated into two or more separate bodies, and particularly, a connecting portion (eyeball portion) of an end is made of spheroidal graphite cast iron. If it is manufactured and joined by friction welding, it does not require a very large casting frame at the molding site, and since spheroidal graphite cast iron is lighter than conventional materials, it will also be effective in reducing the weight of automobiles. Attention was paid to the present invention. That is, the torque rod of the present invention is characterized in that the connecting portion made of spheroidal graphite cast iron and located at the end portion and the rod portion made of steel-based material and located at the intermediate portion are integrated by friction welding. . Further, the friction welding portion of the torque rod is characterized in that there is no chill and it is formed by a joint close to solid-phase joining.
【０００７】[0007]
【発明の実施の形態】本発明のトルクロッドは、摩擦圧
接に際して摩擦圧力を低くとり、摩擦時間を長く設定す
ることによって、材料の接合部を中心とする温度勾配を
緩やかにする。また、その後のアップセット圧力を大き
くし、アップセット時間を短くして接合する。これによ
り、摩擦圧接の接合部にチルが存在せず、その接合が固
相接合に近い状態に確保できる。BEST MODE FOR CARRYING OUT THE INVENTION In the torque rod of the present invention, the friction pressure during friction welding is set to be low and the friction time is set to be long, so that the temperature gradient around the joint portion of the material is made gentle. Also, the upsetting pressure after that is increased and the upsetting time is shortened to perform the joining. As a result, there is no chill in the friction welded joint, and the joint can be secured in a state close to solid-state welding.
【０００８】本発明の実施の形態につきを図面を参照し
て説明する。図１は本発明の一実施例の摩擦圧接法によ
り得られたトルクロッドの斜視図である。このトルクロ
ッ１は球状黒鉛鋳鉄から製作された連結部２、２と、こ
の連結部２、２に接合されるべき鋼系材から製作された
ロッド部３とからなっている。連結部２、２とロッド部
３は、それぞれ別体に製作されたものである。なお、
４、４は接合部である。このため連結部２、２は、特別
な大型鋳枠を必要とせず、新らたな投資による大規模な
造型設備の設置も必要としない。An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a torque rod obtained by a friction welding method according to an embodiment of the present invention. The torque lock 1 comprises connecting portions 2 and 2 made of spheroidal graphite cast iron, and a rod portion 3 made of a steel material to be joined to the connecting portions 2 and 2. The connecting portions 2 and 2 and the rod portion 3 are separately manufactured. In addition,
Reference numerals 4 and 4 are joints. For this reason, the connecting portions 2 and 2 do not require a special large-sized flask, and do not need to install large-scale molding equipment by new investment.
【０００９】本発明のトルクロッド１を得るには、摩擦
圧力５〜１５ＭＰａ、摩擦時間３０〜６０秒で、連結部
２、２とロッド部３どうしを摩擦しつつ相対運動させた
後、アプセット圧力２０〜６０ＭＰａ、アプセット時間
２〜４秒でアプセットを行う。連結部２、２にはＦＣＤ
７００を用い、ロッド部３にはパイプ鋼材を用いる。接
合部の境界は、チルは存在せず、その接合は極めて良好
である。In order to obtain the torque rod 1 of the present invention, the friction pressure is 5 to 15 MPa, the friction time is 30 to 60 seconds, the connecting portions 2 and 2 and the rod portion 3 are relatively moved while rubbing, and then the upset pressure is applied. Upset is performed at 20 to 60 MPa and an upset time of 2 to 4 seconds. FCD in the connecting parts 2 and 2
700 is used, and a pipe steel material is used for the rod portion 3. At the boundary of the joint, there is no chill and the joint is very good.
【００１０】[0010]
【発明の効果】以上説明の通り、本発明のトルクロッド
は、球状黒鉛鋳鉄からなる連結部と、鋼系材からなるロ
ッド部を摩擦圧接により、接合部にチルが存在せず、固
相接合に近く接合されていて、組織上および強度上良好
に接合し、しかも軽量化が図れる。As described above, the torque rod of the present invention is solid-phase welded by friction welding the connecting portion made of spheroidal graphite cast iron and the rod portion made of steel material without chills in the joint portion. Since it is joined close to, it is well joined in terms of structure and strength, and it is possible to reduce the weight.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の一実施例の摩擦圧接法により得られた
トルクロッドの斜視図である。FIG. 1 is a perspective view of a torque rod obtained by a friction welding method according to an embodiment of the present invention.
【符号の説明】 １：トルクロッド、 ２：連結部、 ３：ロッド部、
４：摩擦圧接部。[Explanation of Codes] 1: Torque rod, 2: Connection part, 3: Rod part,
4: Friction welding part.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大塚 公輝 栃木県真岡市鬼怒ケ丘11番地 日立金属株 式会社素材研究所内 (72)発明者 伊藤 嘉高 東京都千代田区丸の内二丁目２番１号 日 立金属株式会社自動車機器事業部内 (72)発明者 門田 進 東京都千代田区丸の内二丁目２番１号 日 立金属株式会社自動車機器事業部内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kimiki Otsuka 11 Kinugaoka, Moka City, Tochigi Prefecture Inside the Materials Research Laboratory, Hitachi Metals Co., Ltd. (72) Inventor Yoshitaka Ito 2-2 Marunouchi, Chiyoda-ku, Tokyo (72) Inventor Susumu Kadota 2-2-1 Marunouchi Marunouchi, Chiyoda-ku, Tokyo Inside Automotive Equipment Division, Nitate Metal Co., Ltd.
Claims (2)
連結部と、鋼系材からなり中間部に位置するロッド部
が、摩擦圧接により一体化してなることを特徴とするト
ルクロッド。1. A torque rod characterized in that a connecting portion made of spheroidal graphite cast iron and located at an end portion thereof and a rod portion made of a steel-based material located at an intermediate portion are integrated by friction welding.
が存在せず、固相接合に近い接合で形成されていること
を特徴とする請求項１に記載のトルクロッド。2. The torque rod according to claim 1, wherein the friction welding portion of the torque rod has no chill and is formed by a joint close to solid-phase joining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28157095A JPH09126220A (en) | 1995-10-30 | 1995-10-30 | Torque rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28157095A JPH09126220A (en) | 1995-10-30 | 1995-10-30 | Torque rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09126220A true JPH09126220A (en) | 1997-05-13 |
Family
ID=17641029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28157095A Pending JPH09126220A (en) | 1995-10-30 | 1995-10-30 | Torque rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09126220A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0999077A1 (en) * | 1998-11-06 | 2000-05-10 | Showa Aluminum Kabushiki Kaisha | An arm member |
| EP0945632A3 (en) * | 1998-03-21 | 2000-09-06 | Audi Ag | Connecting rod for a reciprocating piston engine |
-
1995
- 1995-10-30 JP JP28157095A patent/JPH09126220A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0945632A3 (en) * | 1998-03-21 | 2000-09-06 | Audi Ag | Connecting rod for a reciprocating piston engine |
| EP0999077A1 (en) * | 1998-11-06 | 2000-05-10 | Showa Aluminum Kabushiki Kaisha | An arm member |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9073403B2 (en) | Hybrid component | |
| EP1673189B1 (en) | Hydrid component | |
| US6769743B1 (en) | Two-piece wheel | |
| JPH10114278A (en) | Integral jointed two-piece type steering knuckle assembly for motorcar and manufacture thereof | |
| JPH09126220A (en) | Torque rod | |
| JP2000288747A (en) | Friction welded member | |
| JPH09122936A (en) | Propeller shaft | |
| JP2001520584A (en) | Joining metal components | |
| JPH01212679A (en) | Car body frame for bicycle | |
| JPH0653445B2 (en) | Car suspension arm | |
| JPH09123723A (en) | Wheel support member | |
| JPH07293326A (en) | Piston structure for internal combustion engine and manufacture thereof | |
| JPS59160666A (en) | Steering wheel | |
| JPH0985469A (en) | Composite casting member | |
| JPS6349591A (en) | Front fork for bicycle | |
| JPH0577026A (en) | Composite cam shaft and manufacture of same | |
| JPH03238157A (en) | Manufacture of cast iron-made cylinder block | |
| JPS6246702A (en) | Rear axle housing | |
| CN218207678U (en) | Double-metal differential case | |
| JPH0569980B2 (en) | ||
| JPH01215453A (en) | Striker and its manufacture | |
| JPH0763836B2 (en) | Aluminum alloy casing manufacturing method and bearing insert for casing manufacturing | |
| JPH1120435A (en) | Suspension arm member | |
| JPS61202771A (en) | Production of cam shaft | |
| JPH04231183A (en) | Method for friction welding with pressure |