JPS62224716A - Forged frm connecting rod - Google Patents
Forged frm connecting rodInfo
- Publication number
- JPS62224716A JPS62224716A JP6598086A JP6598086A JPS62224716A JP S62224716 A JPS62224716 A JP S62224716A JP 6598086 A JP6598086 A JP 6598086A JP 6598086 A JP6598086 A JP 6598086A JP S62224716 A JPS62224716 A JP S62224716A
- Authority
- JP
- Japan
- Prior art keywords
- connecting rod
- aluminum alloy
- end part
- frm
- oriented
- 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
- 239000000835 fiber Substances 0.000 claims abstract description 34
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000919 ceramic Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 abstract description 17
- 229910052581 Si3N4 Inorganic materials 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 abstract description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract description 2
- 229910010271 silicon carbide Inorganic materials 0.000 abstract description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005242 forging Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 235000002597 Solanum melongena Nutrition 0.000 description 1
- 244000061458 Solanum melongena Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/16—Fibres
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は内燃ｌｌ！Ｉ関に使用される鍛造ＦＲＭコネク
ティングロッドに関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to internal combustion! This relates to a forged FRM connecting rod used in I-Seki.
［従来の技術］
内燃機関におけるピストンには従来からアルミニウム合
金などが用いられているが、コネクティングロッドには
大きな爆発荷重が作用するため、１１４ Ｒ３ｉ！ｉ品
が用いられている。しかし、コネクティングロッドにつ
いても、軽量化により慣性′Ｒ＠を減じれば、機関の応
答性、出力、燃費などの性能向上を図ることができる。[Prior Art] Aluminum alloys have traditionally been used for pistons in internal combustion engines, but since a large explosive load acts on connecting rods, 114 R3i! i product is used. However, if the inertia 'R@ of the connecting rod is reduced by reducing its weight, it is possible to improve engine performance such as responsiveness, output, and fuel efficiency.
このような目的を達するものとして、例えば特開昭５８
−９１９１９号公報に、炭素、アルミナ、鋼などの長繊
維をループ状に巻き、これにアルミニウム合金を含浸し
て所定形状の板に成形したものを互いに積層したうえ、
ピストンピンとクランク軸をそれぞれ嵌合する小端部と
大端部に、炭素ｍ帷、アルミナ繊維、ｔｇｍｍなどから
なる織布を積層して一体的に結合したコネクティングロ
ッドが開示されている。この従来技術によれば、連結部
には長手方向にｔｌＡＮが引き揃えられているので、軽
］で高強度を得ることができるとともに、軸受部におい
て一部の繊維が軸穴の内周面に直交するように配向され
るために耐辛耗性が向上される。For example, Japanese Unexamined Patent Publication No. 58
According to Japanese Patent No. 91919, long fibers such as carbon, alumina, and steel are wound into a loop shape, impregnated with an aluminum alloy, formed into a plate of a predetermined shape, and then laminated together.
A connecting rod is disclosed in which a woven fabric made of carbon fiber, alumina fiber, TGMM, or the like is laminated and integrally connected to a small end portion and a large end portion into which a piston pin and a crankshaft are fitted, respectively. According to this conventional technology, since the tlAN is aligned in the longitudinal direction in the connecting part, it is possible to obtain high strength with a light weight, and at the same time, some fibers are attached to the inner circumferential surface of the shaft hole in the bearing part. Orthogonal orientation improves abrasion resistance.
しかし、この従来技術では、長ｍ維をループ状に引き揃
え、これに金属を含浸して平坦なり４層板を製作する行
程が複雑でかなりの手数が掛り、また大端部と小径部に
おいて全ての繊維が軸穴の内周面に交差するように配向
されているわけではないので、耐摩耗性についても完全
なものとはいい難い。However, in this conventional technique, the process of aligning the long fibers into a loop shape and impregnating the fibers with metal to produce a flat four-layer board is complicated and requires a considerable amount of time. Since not all the fibers are oriented so as to intersect with the inner peripheral surface of the shaft hole, it is difficult to say that the wear resistance is perfect.
ＦＲ，Ｍ製部材は、強度を必要される部分には繊維が軸
方向（荷重方向）に配向され、かつ耐摩耗性を必要とさ
れる部分には軸穴の中心に向って繊維が配向されること
が好ましい。In FR and M parts, fibers are oriented in the axial direction (load direction) in areas where strength is required, and fibers are oriented towards the center of the shaft hole in areas where wear resistance is required. It is preferable that
［発明が解決しようとする問題点］
本発明の目的は上述の問題に鑑み、アルミニウム合金に
セラミックス、アルミナなどの短繊維を向きを不規則に
混合してなるＦＲＭ （ｍ帷強化金属）を素材とし、連
結部で知謀、４が長手方向に配向される、軽量で製造の
容易な鍛造ＦＲＭコネクティングロッドを提供すること
にある。[Problems to be Solved by the Invention] In view of the above-mentioned problems, the object of the present invention is to create a material using FRM (m-thread reinforced metal), which is made by mixing short fibers such as ceramics and alumina with an aluminum alloy in irregular orientations. The object of the present invention is to provide a lightweight and easy-to-manufacture forged FRM connecting rod in which the connecting rods are oriented in the longitudinal direction.
［問題を解決するための手段］
上記目的を達成するために、本発明の構成はアルミニウ
ム合金にセラミックス、アルミナなどの短繊維を大端部
と小端部では不規則に混在させ、連結部では長手方向に
配向させたものである。[Means for Solving the Problem] In order to achieve the above object, the present invention has a structure in which short fibers such as ceramics and alumina are mixed irregularly in the aluminum alloy at the large end and the small end, and at the connecting part. It is oriented in the longitudinal direction.
［作用］
連結部８では特別な鍛造方法により短繊維２が長手方向
に配向されているので、圧縮荷重に対して十分な強度を
発揮する。一方、ピストンピンが嵌合される小端部７お
よびクランク軸が嵌合される大端部６では短繊維２が不
規則に配向された状態となっているので、短繊維２はビ
ン穴１０および軸穴９の内周面に沿って配向されること
なく、内周面に対して直交しまたは斜めに交着した状態
に配向されることとなり、優れた耐摩耗性を発揮する。[Operation] In the connecting portion 8, the short fibers 2 are oriented in the longitudinal direction by a special forging method, so that it exhibits sufficient strength against compressive loads. On the other hand, the short fibers 2 are irregularly oriented at the small end 7 where the piston pin is fitted and the large end 6 where the crankshaft is fitted. And, it is not oriented along the inner circumferential surface of the shaft hole 9, but is oriented perpendicularly or obliquely to the inner circumferential surface, thereby exhibiting excellent wear resistance.
［発明の実施例］
本発明を実施例に基づいて説明する。第１図に示すよう
に、コネクティングロッドは炭化硅素、窒化硅素などの
セラミックスＩＩ維またはアルミ±Ｉｌ帷を短く切断し
てなる短繊維２を、溶融されたアルミニウム合金（ＪＩ
Ｓ６０６１など）に混合してなる素材１（第２図）から
形成されるもので、ピストンピンが嵌合されるピン穴１
０を有する小端部７と、クランク軸が嵌合される軸穴９
を有する大端部６には、それぞれ短繊維２が不規則にア
ルミニウム合金に混在され、小端部７と大端部６とを連
結する連結部８には短繊維２がコネクティングロッドの
長手方向に引き揃えられている。[Examples of the Invention] The present invention will be described based on Examples. As shown in Fig. 1, the connecting rod is made by cutting short fibers 2 of ceramic II fibers such as silicon carbide or silicon nitride or aluminum
S6061, etc.) is formed from the material 1 (Fig. 2), and the pin hole 1 into which the piston pin is fitted.
0 and a shaft hole 9 into which the crankshaft is fitted.
The short fibers 2 are mixed irregularly in the aluminum alloy in each of the large end portions 6 having are aligned.
なお、大端部６は実際には軸受キャップ６ａが分割され
、クランク軸を挟むようにロンド本体にボルトにより結
合される。Note that the large end portion 6 is actually a divided bearing cap 6a, and is connected to the rond main body with bolts so as to sandwich the crankshaft.
上述の構成を有する本発明による鍛造ＦＲＭコネクティ
ングロッドの製造方法について説明すると、第２図に示
すように予め溶融アルミニウム合金にセラミックス短Ｉ
Ｉ雑（商品名ウィスカと称するものなど）やアルミナ短
ｍ稚２を混合して、円柱形の素材１を鋳造する。To explain the manufacturing method of the forged FRM connecting rod according to the present invention having the above-mentioned configuration, as shown in FIG.
A cylindrical material 1 is cast by mixing an I miscellaneous material (such as a product called Whisker) and alumina material 2.
次いで、第３図に示すように、円柱形の素材１の中間部
分を外周側から加圧しつつ軸方向に引き延ばして小径部
１８となし、この両端側が原外径の大径部１７．１６を
なす中間素材１１を形成する。Next, as shown in FIG. 3, the middle part of the cylindrical material 1 is stretched in the axial direction while applying pressure from the outer peripheral side to form a small diameter part 18, and the large diameter part 17.16 of the original outer diameter is formed on both ends thereof. An eggplant intermediate material 11 is formed.
このような中間素材１１を形成するには、第４図に示す
ように、中間部に大径部３１を有し、かつ両端側に小径
部３２を有する３ｉ［１の鍛圧ロールＡ、Ｂ、Ｃの間に
素材１を挟み、素０１の中間部分を各鍛圧ロール△、Ｂ
、Ｃの大径部３１により加圧すれば、素材１の中間部分
が軸方向に引き伸ばされ、素材１の内部に不規則に配向
されていた短繊維２が延伸方向すなわち軸方向に引き揃
えられ、小径部１８が形成される。In order to form such an intermediate material 11, as shown in FIG. 4, forging rolls A, B, Sandwich material 1 between C and the middle part of material 01 with each forging roll △, B
, C, the intermediate portion of the material 1 is stretched in the axial direction, and the short fibers 2 that were irregularly oriented inside the material 1 are aligned in the stretching direction, that is, the axial direction. , a small diameter portion 18 is formed.
また、第５図に示すような、１対の鍛圧ロール２１の間
に素材１を挟んで中間部分に小径部１８を成形するよう
にしてもよい。Further, as shown in FIG. 5, the material 1 may be sandwiched between a pair of forging rolls 21 to form the small diameter portion 18 in the middle portion.
次いで、第３図に示す中間部分に短繊維２が軸方向に配
向された小径部１８を有する中間素材１１を金型の内部
へ挿入して、上下両側から平坦にプレス成形して、第１
図に示すような所定形状を有する鍛造ＦＲＭコネクティ
ングロッドを成形する。そして、大端部６の両側部に連
結ボルトを挿通するボルト挿通穴（図示省略）を穿設す
るとともに、軸穴９のほぼ中心を通るカット面４０で、
軸受キャップ６ａを分割することにより、鍛造ＦＲＭコ
ネクティングロッドが完成される。Next, an intermediate material 11 having a small diameter part 18 in which the short fibers 2 are oriented in the axial direction in the intermediate part shown in FIG.
A forged FRM connecting rod having a predetermined shape as shown in the figure is formed. Then, bolt insertion holes (not shown) for inserting connecting bolts are formed on both sides of the large end 6, and a cut surface 40 passing approximately through the center of the shaft hole 9 is formed.
By dividing the bearing cap 6a, a forged FRM connecting rod is completed.
上述の方法で製造された鍛造ＦＲＭコネクティングロッ
ドは、連結部８において鍛圧により素材が軸方向に延伸
されるので、短繊維２が長手方向に引き揃えられ、圧縮
荷重に対する強度が増大される。一方、小端部７と大端
部６において、短繊維２は軸方向に引き延ばされず、上
下両面から圧搾されるだけであるから、短Ｉａ維２は圧
搾された面と平行にある程度層状に並ぶことはあっても
、面内において不規則に配向される。したがって、短ａ
Ｉ維２がビン穴１ｏＩ５よび軸穴９の内周面に沿うこと
なく内周面から突き出す方向に並ぶ。すなわら、ビン穴
’Ｉ Ｏおよび軸穴９の内周面に短繊維２の切口が現れ
ることとなり、耐摩耗性の優れた内周面が形成されるの
で、特別にブツシュを用いないで、直接ピストンビンヤ
クランク軸を支持しても十分な耐摩耗性を得ることがで
きる。In the forged FRM connecting rod manufactured by the above-described method, the material is stretched in the axial direction by forging in the connecting portion 8, so that the short fibers 2 are aligned in the longitudinal direction, and the strength against compressive loads is increased. On the other hand, at the small end 7 and the large end 6, the short fibers 2 are not stretched in the axial direction but are only compressed from both the upper and lower surfaces, so the short Ia fibers 2 are layered to some extent parallel to the compressed surfaces. Even if they are lined up, they are oriented irregularly within the plane. Therefore, short a
The I fibers 2 are arranged in a direction protruding from the inner circumferential surfaces of the bottle hole 1oI5 and the shaft hole 9 without following the inner circumferential surfaces. In other words, the cuts of the short fibers 2 will appear on the inner circumferential surfaces of the bottle hole 'IO' and the shaft hole 9, and an inner circumferential surface with excellent wear resistance will be formed, so there is no need to use a special bushing. , sufficient wear resistance can be obtained even if the piston is directly supported on the crankshaft.
［発明の効果〕
本発明は上述のように、溶融アルミニウム合金にセラミ
ックスなどの短繊維を不規則に混在してなる素材を用い
るものであるから構成が簡単であり、鍛圧加工を施すこ
とにより製造されるものであるから、多量生産によるコ
ストの低減が容易である。連結部では短繊維が長手方向
に引き揃えられて、十分な圧縮強度をもつとともに、ピ
ストンピンに支持される小端部とクランク軸に支持され
る大端部では短繊維が不規則な向きに分散されているの
で１、ビン穴および軸穴の内周面に短繊維の端面ないし
切口が露出した格好に成形され、優れた耐摩耗性を発揮
する。そして、十分な強度と耐摩耗性を有し、慣性質量
が減じられるので、機関の性能向上に役立つ。[Effects of the Invention] As mentioned above, the present invention uses a material made of a molten aluminum alloy mixed with short fibers such as ceramics irregularly, so the structure is simple, and it can be manufactured by forging. Therefore, it is easy to reduce costs through mass production. At the joint, the short fibers are aligned in the longitudinal direction to provide sufficient compressive strength, and at the small end supported by the piston pin and the large end supported by the crankshaft, the short fibers are oriented irregularly. Since the short fibers are dispersed, they are formed in such a way that the ends or cuts of the short fibers are exposed on the inner peripheral surfaces of the bottle hole and the shaft hole, and exhibit excellent wear resistance. It also has sufficient strength and wear resistance, and reduces inertial mass, which helps improve engine performance.
第１図は本発明に係る鍛造ＦＲＭコネクティングロッド
の平面図、第２．３図は同コネクティングロッドの製造
過程を示す斜視図、第４図は同コネクティングロッドの
鍛造工程を示す正面断面図、第５図は同コネクティング
ロッドの他の鍛造工程を示す正面断面図である。Figure 1 is a plan view of a forged FRM connecting rod according to the present invention, Figures 2 and 3 are perspective views showing the manufacturing process of the connecting rod, Figure 4 is a front sectional view showing the forging process of the connecting rod, and Figure 4 is a front sectional view showing the forging process of the connecting rod. FIG. 5 is a front sectional view showing another forging process of the same connecting rod.
Claims (1)
維を大端部と小端部では不規則に混在させ、連結部では
長手方向に配向させたことを特徴とする鍛造ＦＲＭコネ
クテイングロツド。A forged FRM connecting rod characterized by aluminum alloy, short fibers such as ceramics and alumina mixed irregularly at the large end and small end, and oriented in the longitudinal direction at the connecting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6598086A JPS62224716A (en) | 1986-03-26 | 1986-03-26 | Forged frm connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6598086A JPS62224716A (en) | 1986-03-26 | 1986-03-26 | Forged frm connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62224716A true JPS62224716A (en) | 1987-10-02 |
Family
ID=13302657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6598086A Pending JPS62224716A (en) | 1986-03-26 | 1986-03-26 | Forged frm connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62224716A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989003940A1 (en) * | 1987-10-19 | 1989-05-05 | The Secretary Of State For Trade And Industry In H | Connecting rods |
| US6502480B1 (en) * | 1998-11-16 | 2003-01-07 | Bruce K. Walker | High performance forged aluminum connecting rod and method of making the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5797912A (en) * | 1980-12-10 | 1982-06-17 | Toyota Motor Corp | Connecting rod of fiber-reinforced metal for internal combustion engine |
| JPS6298017A (en) * | 1985-10-22 | 1987-05-07 | Nissan Motor Co Ltd | Connecting rod |
-
1986
- 1986-03-26 JP JP6598086A patent/JPS62224716A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5797912A (en) * | 1980-12-10 | 1982-06-17 | Toyota Motor Corp | Connecting rod of fiber-reinforced metal for internal combustion engine |
| JPS6298017A (en) * | 1985-10-22 | 1987-05-07 | Nissan Motor Co Ltd | Connecting rod |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989003940A1 (en) * | 1987-10-19 | 1989-05-05 | The Secretary Of State For Trade And Industry In H | Connecting rods |
| US6502480B1 (en) * | 1998-11-16 | 2003-01-07 | Bruce K. Walker | High performance forged aluminum connecting rod and method of making the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4403525A (en) | Connecting rod for an engine | |
| US4643145A (en) | Reinforcement of engine blocks | |
| US3285098A (en) | Connecting rod for reciprocating piston machine | |
| US3908623A (en) | Advanced reciprocating engine system | |
| CN100354537C (en) | Crankshaft for large-sized two-stroke cross-head internal combustion engine | |
| US5560333A (en) | Internal combustion engine connecting rod | |
| JPS588819A (en) | Composite connecting member and its manufacture | |
| JPS62224716A (en) | Forged frm connecting rod | |
| JPS5891919A (en) | Connecting rod for internal-combustion engine and its manufacture | |
| KR950007628B1 (en) | Wrist pin | |
| JPH0425534Y2 (en) | ||
| JP3191677B2 (en) | Piston for internal combustion engine | |
| JPH08226432A (en) | Crank shaft | |
| JPH0736181Y2 (en) | Cast iron crankshaft | |
| GB2118682A (en) | Connecting rod structure | |
| JPS5894620A (en) | Connecting rod for internal-combustion engine and manufacture thereof | |
| JPH0425535Y2 (en) | ||
| JPH07224832A (en) | Fiber reinforced connecting rod and manufacture thereof | |
| JPH0438929B2 (en) | ||
| JPH01307507A (en) | Ductile cast iron crankshaft | |
| JPH0512517Y2 (en) | ||
| JPH05240236A (en) | Connecting rod for reciprocating engine | |
| JPH0552211A (en) | Hollow shaft member and its manufacture | |
| JPS6313044B2 (en) | ||
| JPS5999107A (en) | Connecting rod made of compound material |