JPS61277806A - Manufacture of locker arm - Google Patents
Manufacture of locker armInfo
- Publication number
- JPS61277806A JPS61277806A JP11772885A JP11772885A JPS61277806A JP S61277806 A JPS61277806 A JP S61277806A JP 11772885 A JP11772885 A JP 11772885A JP 11772885 A JP11772885 A JP 11772885A JP S61277806 A JPS61277806 A JP S61277806A
- Authority
- JP
- Japan
- Prior art keywords
- ceramics
- alloy
- pad
- rocker arm
- arm body
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000919 ceramic Substances 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 8
- 238000005304 joining Methods 0.000 claims description 2
- 229910007981 Si-Mg Inorganic materials 0.000 claims 1
- 229910008316 Si—Mg Inorganic materials 0.000 claims 1
- 229910052581 Si3N4 Inorganic materials 0.000 abstract description 4
- 229910018566 Al—Si—Mg Inorganic materials 0.000 abstract 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- 229910003564 SiAlON Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000003353 gold alloy Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、自動車用エンジン等の動弁系部品として使用
されるロッカーアームに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rocker arm used as a valve train component of an automobile engine or the like.
セラミックスの耐摩耗特性を生かして、カムフォロワー
のノ臂ツドをセラミックスで形成したロッカーアームの
開発が近年盛んに行左われている。Taking advantage of the wear-resistant properties of ceramics, there has been active development in recent years of rocker arms in which the arms of cam followers are made of ceramics.
セラミックス材料としては、耐摩耗特性の良°さと軽量
という点から、Ｓｉ３Ｎ４系セラミックス材料が好まし
い材料といえる。ロッカーアーム本体としては、軽量に
して動弁系の応答性を良くしようという観点からＡＬ合
金が用いられることもあるが、用途によっては、高い剛
性が要求される場合もあり、これに対しては、鍛鋼によ
りロッカーアーム本体が使用されている。As the ceramic material, Si3N4 ceramic material is preferable because of its good wear resistance and light weight. AL alloy is sometimes used for the rocker arm body from the perspective of making it lightweight and improving the response of the valve train, but depending on the application, high rigidity may be required, so The rocker arm body is made of forged steel.
μ金合金本体とするロッカーアームでは、鋳りるみ等に
より比較的容易にＳ ｉ ３Ｎ４系セラミックス製のノ
々ツド付きのロッカーアームを製造することができる。For a rocker arm having a μ-gold alloy main body, it is possible to relatively easily manufacture a rocker arm with a notch made of Si 3N4 ceramics by casting or the like.
一方、鍛鋼品を本体とするロッカーアームでは、この方
法は利用できず、接着剤により接合する方法等が提案さ
れているが、これでは信頼性の高い接合体が得られない
。又、Ｓ ｉ ３Ｎ４系セラミックスは金属とのぬれ性
が悪く、酸化物セラミックスの様にメタライソング、ろ
う付により高い接合強度を得ることも難しいという問題
があった。On the other hand, this method cannot be used for a rocker arm whose main body is a forged steel product, and methods of joining using an adhesive have been proposed, but this method does not provide a highly reliable joined body. In addition, S i 3N4 ceramics have poor wettability with metals, and unlike oxide ceramics, it is difficult to obtain high bonding strength through metal ligation or brazing.
本発明の目的は、鍛鋼品から成るロッカーアーム本体と
Ｓ ｌ ３Ｎ４系セラミックスより成るカムフォロワー
のパッドを、強固に接合し、信頼性が高く。An object of the present invention is to firmly join a rocker arm body made of forged steel and a cam follower pad made of S13N4 ceramics to achieve high reliability.
耐摩耗性のすぐれたロッカーアームを製造する方法を提
供することにある。An object of the present invention is to provide a method for manufacturing a rocker arm with excellent wear resistance.
本発明者はＳｉ３Ｎ４サイアロン等の８１３Ｎ４系セラ
ミックスと鋼の接合を中間材を介して拡散により接合す
る方法に関しＡｔおよび穏々の尼合金について検討を行
なった結果、Ａｔ−８１−Ｍｇ系合金を中間材として用
いて、加熱、圧着することにより。The present inventor has investigated the method of bonding 813N4 ceramics such as Si3N4 SiAlON and steel by diffusion using an intermediate material, and as a result of conducting studies on At and mild amber alloys, the inventors have developed an At-81-Mg alloy as an intermediate material. By using it as a material, heating it, and crimping it.
高い接合強度を有する信頼性の高い接合体が得られるこ
とを見い出した。本発明においてＡｔＡｔ−８ｔ−合金
は、８１３Ｎ４系セラミックスおよび鋼との界面は接合
層を生成し強固に接合する。Ｓ ｔ 、Ｎ４系セラミッ
クスと鋼の熱膨張係数の比は約１：３と大きいが、本発
明においては、加熱温度はＡｔ−８１−Ｍ、合金の融点
近傍と比較的低温であシ、熱膨張差による熱応力の影響
は小さく、又入、Ａｔ−８１−Ｍｇ合金の厚さを適当に
選ぶことにより、低ヤング率のＡｔ−８１−Ｍｇ合金が
、熱応力緩和の役目を果たし高い接合強度が維持できる
。It has been found that a highly reliable bonded body with high bonding strength can be obtained. In the present invention, the AtAt-8t-alloy forms a bonding layer at the interface with the 813N4 series ceramics and steel, and is strongly bonded. S t , the ratio of the thermal expansion coefficients of N4 ceramics and steel is as large as about 1:3, but in the present invention, the heating temperature is At-81-M, which is relatively low temperature near the melting point of the alloy; The effect of thermal stress due to the expansion difference is small, and by appropriately selecting the thickness of the At-81-Mg alloy, the At-81-Mg alloy with a low Young's modulus plays the role of relieving thermal stress and achieves high bonding. Strength can be maintained.
本発明において、μ−８ｌ−々合金は少なくとも接合す
る鋼およびＳ ｉ 、Ｎ４系セラミックスと接する位置
に存在すれば良く、前記両部材にＡｔ−８１−Ｍｇ合金
が接する様に配置し、さらにこの間に、Ａｌ−８ｔ−Ｍ
ｇ合金と拡散接合容易なＴ１．純Ｍ等を介しても良い。In the present invention, it is sufficient that the μ-81-Mg alloy is present at least in a position where it is in contact with the steel to be joined and the S i , N4-based ceramics, and the At-81-Mg alloy is arranged so as to be in contact with both of the above-mentioned members. , Al-8t-M
T1.G alloy and easy diffusion bonding. It is also possible to use pure M or the like.
第１図は、本発明の方法により製造したセラミツクツ譬
ツド付ロッカーアームを示す図である。FIG. 1 is a diagram showing a rocker arm with a ceramic mount manufactured by the method of the present invention.
鍛造により成形されたＳＣｒ材から成るロッカーアーム
本体１とサイアロンセラミックスにより成形したカムフ
ォロワー〇ノ々ツド２との間にＪＩＳＡＣ８ＡのＡｌ−
８ｔ−Ｍｇ合金の薄板３をはさみ、真空中で１ ｋｇｆ
／ｓ＋＋ａ” Ｏ加圧下、６１ ｏ℃Ｘ−０，２ＨＱＤ
加熱処理を行々いセラミックパッド付きのロッカーアー
ムを製造することができた。JISAC8A Al-
A thin plate 3 of 8t-Mg alloy is sandwiched and heated to 1 kgf in vacuum.
/s++a'' O under pressure, 61 o℃X-0,2HQD
After extensive heat treatment, we were able to manufacture a rocker arm with a ceramic pad.
Ａｌ−８ｔ−々合金として、皮材にＡｔ−８１−Ｍｇ合
金を配したＪＩＳ ＢＡ８ＰＣのクラツド材を用いて、
上記と同じ条件にて接合を行ない、セラミックパッド付
のロッカーアームを製造することができた。Using JIS BA8PC cladding material with At-81-Mg alloy as the Al-8t alloy,
Welding was carried out under the same conditions as above, and a rocker arm with a ceramic pad could be manufactured.
製造しｆｒ−ａツカ−アームの本体をつかみ、セラミッ
ク部に荷重をかけて破壊テストを行なつな結果、セラミ
ックス本体から破壊し、接合部からはくシすることはな
かつ九。When we conducted a destructive test by grasping the main body of the manufactured FR-A Tsuka arm and applying a load to the ceramic part, we found that the ceramic did not break from the main body and did not come off from the joint.
本発明によれば、従来不充分であった鍛鋼品とＳ ｉ
３Ｎ４系セラミックスの接合が強固に行なわれるため、
信頼性の高いＳ ｉ 、Ｎ４系セラミックスノ！ツド付
きのロッカーアームを得ることができる。According to the present invention, forged steel products and Si
Because the bonding of 3N4 ceramics is strong,
Highly reliable Si, N4 ceramics! You can get rocker arms with horns.
第１図は本発明に係るセラミツクツぐラド付ロッカーア
ームの製造方法の一実施例を示す図である。
第１図FIG. 1 is a diagram showing an embodiment of the method for manufacturing a rocker arm with a ceramic strut according to the present invention. Figure 1
Claims (1)
セラミックスから成るカムフォロワーのパッドをＡｌ−
Ｓｉ−Ｍｇ系合金を介して、加熱、圧着により接合する
ことを特徴とするセラミックパッド付ロッカーアームの
製造方法The cam follower pad made of Si_3N_4 ceramics is attached to the rocker arm body made of forged steel.
A method for manufacturing a rocker arm with a ceramic pad, characterized by joining by heating and pressure bonding via a Si-Mg alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11772885A JPS61277806A (en) | 1985-05-31 | 1985-05-31 | Manufacture of locker arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11772885A JPS61277806A (en) | 1985-05-31 | 1985-05-31 | Manufacture of locker arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61277806A true JPS61277806A (en) | 1986-12-08 |
Family
ID=14718813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11772885A Pending JPS61277806A (en) | 1985-05-31 | 1985-05-31 | Manufacture of locker arm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61277806A (en) |
-
1985
- 1985-05-31 JP JP11772885A patent/JPS61277806A/en active Pending
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