JPS58224118A - Method for chilling sliding surface of cam - Google Patents
Method for chilling sliding surface of camInfo
- Publication number
- JPS58224118A JPS58224118A JP10548282A JP10548282A JPS58224118A JP S58224118 A JPS58224118 A JP S58224118A JP 10548282 A JP10548282 A JP 10548282A JP 10548282 A JP10548282 A JP 10548282A JP S58224118 A JPS58224118 A JP S58224118A
- Authority
- JP
- Japan
- Prior art keywords
- cam
- sliding surface
- curvature
- radius
- junctures
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/30—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for crankshafts; for camshafts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、カムの摺動面を、アーク熱等のエネルギを発
生するエネルギ発生装置に対して相対移動させながら、
同エネルギ発生装置により加熱浴解し白銑硬化させる方
法の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for moving the sliding surface of a cam relative to an energy generating device that generates energy such as arc heat.
This invention relates to an improvement in the method of curing white pig iron by melting it in a hot bath using the same energy generator.
カムは曲率半径の異なる摺動面を具えており、従来方法
においては、カム摺動面を白銑硬化させる際に、どの曲
率面においても、エネルギ発生装置からのエネルギ出力
を同一出力で且つエネルギ発生装置とカム摺動面との相
対移動速度を同一速度で、加熱溶解するようにしている
。このため、曲率半径の異なる摺動面では、摺動向に形
成される白銑（チル）硬化層の深さが異なり、曲率半径
の小さい摺動向では深く、曲率半径の大きい摺動面では
浅くなっており、カム摺動面の耐摩耗性能が必ずしも均
一ではないという不具合があった。The cam has sliding surfaces with different radii of curvature, and in the conventional method, when hardening the cam sliding surface with white pig iron, the energy output from the energy generator is the same on any surface of curvature. The generating device and the cam sliding surface are heated and melted at the same relative movement speed. For this reason, the depth of the white pig iron (chill) hardening layer formed on the sliding surface differs between sliding surfaces with different radii of curvature; it is deep on sliding surfaces with a small radius of curvature, and shallow on sliding surfaces with a large radius of curvature. However, there was a problem in that the wear resistance of the cam sliding surface was not necessarily uniform.
本発明の目的は、従来方法の不具合を解消し、チル硬化
層の深さを略一定にするようにしたカム摺動面の白紙硬
化方法を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a blank paper curing method for a cam sliding surface, which eliminates the problems of conventional methods and makes the depth of the chill hardened layer substantially constant.
この目的を達成するため、本発明は、カム摺動面をエネ
ルギ発生装置に対して相対移動させながら、同エネルギ
発生装置により加熱溶解し白銑硬化させる方法において
、カムの曲率半径に応じて上記エネルギ発生装置と上記
カム摺動面との相対移動速度を変化させるようにしたこ
とを特徴とするカム摺ｗＪ面の白銑硬化方法を提゛案す
るものである。In order to achieve this object, the present invention provides a method for heating and melting white pig iron by moving the cam sliding surface relative to the energy generating device and using the same energy generating device to heat melt and harden the white pig iron. This invention proposes a method for hardening white pig iron on a cam sliding surface WJ, which is characterized in that the relative moving speed between the energy generating device and the cam sliding surface is changed.
本発明の上記方法妃よれば、エネルギ発生装置とカム摺
動向との相対移動速度がカムの曲率半径に応じて変化さ
れるので、どの曲率面においても、摺動面に形成される
チル硬化層の深さが略一定となり、カム摺動向の耐摩耗
性能を実質的に均一にできるのである。According to the above method of the present invention, since the relative movement speed between the energy generating device and the cam sliding movement is changed according to the radius of curvature of the cam, the chill hardened layer formed on the sliding surface can be applied to any curvature surface. Since the depth of the cam surface is approximately constant, the wear resistance of the cam sliding movement can be made substantially uniform.
以下、本発明の実施例を添伺図面を参照して詳細に説明
する。Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
第１図には、カムシャフト１のカム２の摺動向をエネル
ギ発生装置に対し蛇行線形の溶融路３に沿って相対移動
させながら白組硬化させる装置の一例が示されている。FIG. 1 shows an example of a device that hardens the white assembly while moving the sliding movement of the cam 2 of the camshaft 1 relative to the energy generating device along a meandering linear melting path 3.
この装置は駆動ユニット４．４ 追従ユニット５及
びエネルギ発生装置を構成するＴＩＧ ）−チロから成
っている。The device consists of a drive unit 4.4, a follow-up unit 5 and a TIG) which constitutes the energy generator.
駆動ユニット４は、ベース部材７に軸線方向に移動可能
に且つ回転可能に支持された主軸８、微速機９と歯車１
０．１１を介して主軸８に連結された主軸回転モータ１
２、ベース部拐７に回転可能に支持され、一端をモータ
、１３に連結された回転軸１４、同回転軸１４の中心軸
線０１から中心軸線０２が偏心して回転軸の他端に固着
され、主軸８の陥中央部に取付けられた２つのベアリン
グ１５間に挾持された偏心＃ｌ１１６、主軸８の中心軸
＃Ｏａから中心軸１ｔＭ Ｏａが偏心して主軸に取付け
られ、カムシャフト１の中心軸線０５ と中心軸線０４
・が−叙してカムシャフトを支持する主軸ヘッド１７、
及び、同主軸ヘッド１７＋Ｃその中心ｌｌｌ１ｌＩ？ｆ
Ｍ０４に平行に出没自在に支持され、カムシャツ）１が
所定の初期位置にある時にのみカムシャフトの孔内に挿
入される位置決め用ビン１８を有している。カム２は、
第２図に示すよ５に、カム７ヤノ）１の中心軸線０５を
曲率中心とする基恍内部１９、同基質内部１９とは異な
る曲率中心ｏ６を有し、上記基質内部より小径の偏心内
部２０．及び上記基礎内部１９と偏心内部２０とを滑ら
かに結ぶ接続部２１，２１ｒがら成っており、１ｊｌｆ
Ｊ 接Ｈ部２１．２１’は基質内部１９に接続された部
分Ａ−Ｂ、Ｅ−Ｆを曲線状に形成され、偏心内部２ｏへ
つながる部分Ｂ−Ｃ，Ｄ−Ｅを略直線状に形成されてい
る。The drive unit 4 includes a main shaft 8 that is movably and rotatably supported in the axial direction by a base member 7, a slow speed gear 9, and a gear 1.
Main shaft rotation motor 1 connected to main shaft 8 via 0.11
2. A rotary shaft 14 rotatably supported by the base part 7 and connected to the motor 13 at one end, the central axis 02 of the rotary shaft 14 being eccentric from the central axis 01, and fixed to the other end of the rotary shaft; Eccentricity #1116 is held between two bearings 15 attached to the recessed center of the main shaft 8, and the center axis 1tM is attached to the main shaft eccentrically from the center axis #Oa of the main shaft 8, and the center axis 05 of the camshaft 1 and central axis line 04
- a main shaft head 17 for supporting the camshaft;
And the center of the same spindle head 17+C lll1lI? f
It has a positioning pin 18 which is supported in parallel to M04 so as to be freely retractable and which is inserted into the hole of the camshaft only when the cam shirt 1 is at a predetermined initial position. Cam 2 is
As shown in FIG. 2, there is an eccentric interior 19 having a center of curvature centered around the central axis 05 of the cam 7, a center of curvature o6 different from the substrate interior 19, and an eccentric interior having a smaller diameter than the substrate interior. 20. 1jlf
J The contact H portion 21.21' has portions A-B and E-F connected to the substrate interior 19 formed in a curved shape, and portions B-C and D-E connected to the eccentric interior 2o formed approximately in a straight line. has been done.
カムシャフト１は、カム２の偏心内部２ｏの曲率中心０
６が主軸８の中心＃４ＪＨＩ１．Ｏｓと一致するように
、主軸ヘッド１７に支持されるものである。なお、各棟
のエンジンでは、カム２の曲率中心ｏ５と０６間の距離
がそれぞれ異なって設計されているので、これに対応さ
せるため、主軸８と主軸ヘッド１７の中心軸線０３と０
４間の距離を変化させることができるように、主軸ヘッ
ド１７を主軸８に対して第１図前後方向に移動させる主
軸ヘッド制心モータ２２及び主軸ヘッド偏心駆動装置２
３が主＠８と主軸ヘッド１７との間に設けられている。The camshaft 1 has a center of curvature 0 of the eccentric interior 2o of the cam 2.
6 is the center of the main shaft 8 #4JHI1. It is supported by the spindle head 17 so as to coincide with Os. In addition, since the engines of each building are designed with different distances between the centers of curvature o5 and 06 of the cam 2, in order to correspond to this, the center axes 03 and 0 of the main shaft 8 and the main shaft head 17 are
A spindle head control motor 22 and a spindle head eccentric drive device 2 for moving the spindle head 17 in the longitudinal direction in FIG. 1 with respect to the spindle 8 so as to change the distance between the two
3 is provided between the main @8 and the main spindle head 17.
追従ユニット５は、カムシャツ）ｌの中ノし軸線０５と
中心軸線が一致してカムシャフト１を支持し、常時左方
に付勢されているヘッド２４を七している。The follow-up unit 5 supports the camshaft 1 with its center axis aligned with the center axis 05 of the cam shirt 1, and supports the head 24 which is always biased leftward.
ＴＩＧ ）−チロは、電源に接続されマイナス電位が与
えられるタングステン電極２５と、同タンクステン眠極
２５を覆うガスノズル２６とを鳴し、ガスノズル２６か
らはアルゴンガスをシールド用として噴出するようにな
っている。トーチ６は、第２図に槻１略的に示すように
、モータ２７によって駆動されるウオーム軸２８に噛合
する駆動装置２９に支持され、カム２の摺動面に対し直
角に配置されると共に、モータ２７の駆動によりカム２
の摺動面に沿って水平方向（第１図前後方向）に往復動
することができる。TIG ) - Chiro sounds the tungsten electrode 25 that is connected to the power source and is given a negative potential, and the gas nozzle 26 that covers the tanksten sleeper electrode 25, and the gas nozzle 26 begins to spout argon gas for shielding. ing. As schematically shown in FIG. 2, the torch 6 is supported by a drive device 29 that meshes with a worm shaft 28 driven by a motor 27, and is arranged at right angles to the sliding surface of the cam 2. , the cam 2 is driven by the motor 27.
It is possible to reciprocate in the horizontal direction (back and forth direction in FIG. 1) along the sliding surface.
上述した装置を用いた本発明によるカム２の摺動面の白
銑硬化方法において、先づ、第１ステツプとして、カム
シャフトｌが主軸ヘッド１７とヘッド２４との間に挾持
され、カムシャフトｌの孔内にピン１８が進入する初期
位置に移動されて、第３図に示すようにカム２の接続部
２１の部分Ｂ−Ｃが水平に位置される。その後、トーチ
６の電極２５がカム２の摺動面上のＡ点に近接対向され
る。In the white pig iron hardening method of the sliding surface of the cam 2 according to the present invention using the above-mentioned device, first, as a first step, the camshaft l is held between the spindle head 17 and the head 24, and the camshaft l is is moved to the initial position where the pin 18 enters into the hole, and the portion B-C of the connecting portion 21 of the cam 2 is positioned horizontally as shown in FIG. Thereafter, the electrode 25 of the torch 6 is closely opposed to point A on the sliding surface of the cam 2.
？ＩＣ，第’２ステップとして、ガスノズル２６棒より
アルゴンガスが噴出され、また電極２５とカム２との間
に略一定の電流が供給されて、それらの間にアークが生
じ、カム２の摺動向が円状に加熱溶解される。同時に、
モータ１３が駆動されることにより、偏心軸１６か回転
して、主ｍ８そしてカム２が％ｉ２５に対しカム２の全
幅よりも狭い振幅で振動する。また同時に、モータ２７
が駆動されることにより、駆動装＠２９を介して電極２
５を有するトーチ６が、カム２の摺動向に対し周方向に
所定の相対移動速度Ｖ１ で第３図右方へＡ点から０点
まで移動される。従って、電極２５はカム２の摺動１ｍ
を円状に溶解しながら溶融路３に清って蛇行してカム摺
動面上をＡ点から０点へ移動し、接続部２１の摺ｗＪ向
を所定の幅にわたって加熱溶解する。? IC, as the second step, argon gas is ejected from the gas nozzle 26 rod, and a substantially constant current is supplied between the electrode 25 and the cam 2, causing an arc between them and causing the sliding movement of the cam 2. is heated and melted in a circular shape. at the same time,
When the motor 13 is driven, the eccentric shaft 16 rotates, and the main m8 and the cam 2 vibrate with an amplitude narrower than the full width of the cam 2 with respect to %i25. At the same time, the motor 27
is driven, the electrode 2 is driven through the drive device @29.
5 is moved in the circumferential direction to the right in FIG. 3 from point A to point 0 at a predetermined relative movement speed V1 with respect to the sliding movement of the cam 2. Therefore, the electrode 25 will move 1m when the cam 2 slides.
While melting in a circular shape, it meanders along the melting path 3 and moves from point A to point 0 on the cam sliding surface, and heats and melts the connecting portion 21 in the sliding wJ direction over a predetermined width.
電極２５が０点に対向する位置に達すると、第３ステツ
プとして・、駆動装置２９を介するトーチ６の移動のみ
が停止される。同時に、主軸同転モ、４ −、□２カ１
．．あｆｌＬ”ｉｃ、１．８カ、や、。１．。３４中心
として回転される。中心＠巌０３はカム２の偏心内部２
０の曲率中心０６と一致しているので、カム２が第３図
に示Ｔようにこの曲率中心０６を中心として回転する。When the electrode 25 reaches the position opposite the zero point, in a third step only the movement of the torch 6 via the drive 29 is stopped. At the same time, the main shaft co-rotating motor, 4 -, □2 motor
．． ．． AflL”ic, 1.8 force, .1..34 It is rotated around the center.The center @ Iwao 03 is the eccentric inner 2 of the cam 2
Since it coincides with the center of curvature 06 of 0, the cam 2 rotates around this center of curvature 06 as shown in FIG.
この際、カム摺動面に対するトーチ６の周方向の相対移
動速度■２が偏心内部２０の曲率半径に応じて所定の値
だけ相対移動速度■１ よりも速くなるように、カム２
が回転するよう設定されている。従って、トーチ６の電
極２５は、第２ステツプと同様に、カム２の摺動（２）
上を相対的に蛇行しながら０点からＤ点へ移動し、偏心
内部２０の摺動面を所定の幅にわたって加熱溶解する。At this time, the cam 2 is adjusted so that the circumferential relative movement speed ■2 of the torch 6 with respect to the cam sliding surface becomes faster than the relative movement speed ■1 by a predetermined value according to the radius of curvature of the eccentric interior 20.
is set to rotate. Therefore, the electrode 25 of the torch 6 is connected to the sliding (2) of the cam 2, similarly to the second step.
It moves from point 0 to point D while relatively meandering above, and heats and melts the sliding surface of the eccentric interior 20 over a predetermined width.
電極２５がＤ点に対向する位置に達すると、第４ステツ
プとして、カム２の回転のみが停止され、第３図に示す
ように、接続部２１’の部分Ｄ−Ｅが水平に位置される
。同時に、モータ２７が貴び駆動されることにより、ト
ーチ６が、カム２の摺動向に対し周方向に相対移動速ｒ
Ｘｖ１と等しい相対移動速度ｖ３で、第３図右方へＤ点
からＦ点まで移動される。従って、第２ステツプと同様
に、電極２５がカム２の摺動面上を蛇行しながらＤ点か
らＦ点へ移動し、接続部２１’の摺ｗＪＪ向を所定の幅
にわたって加熱溶解する。When the electrode 25 reaches the position facing the point D, in the fourth step, only the rotation of the cam 2 is stopped, and the portion D-E of the connecting portion 21' is positioned horizontally, as shown in FIG. . At the same time, by driving the motor 27, the torch 6 moves at a relative movement speed r in the circumferential direction with respect to the sliding movement of the cam 2.
It is moved to the right in FIG. 3 from point D to point F at a relative movement speed v3 equal to Xv1. Therefore, similarly to the second step, the electrode 25 moves from point D to point F while meandering on the sliding surface of the cam 2, and heats and melts the connecting portion 21' in the sliding wJJ direction over a predetermined width.
従って、本発明の方法によれば、カム２の曲率半径の異
なる偏心内部２０と接続部２１．２１’の摺動■を加熱
溶解する除、トーチ６のエネルギ出力即ちアーク電流値
を略一定に保つ一方、カム２の摺動面とトーチ６との周
方向成分の相対移動速ＩＷを、曲率半径の小さい偏心内
部２０では曲率半径無限大の接続部２１．２１′におけ
るよりも速（なるように、変化制御させている。この結
果、偏心内部２０の単位面積当りの摺動面へのエネルギ
入力が接続部２１．２１’に比べ小さくなるので、偏心
内部２０の摺動面に形成されるチル硬化層３０の深さＴ
２及び接続部２１，２１’の摺動面に形成されるチル硬
化層３１，３１’の深さＴ１、Ｔ３は略一定となり、カ
ム２の摺動面の耐摩耗性能が実質的に均一となるもので
ある。Therefore, according to the method of the present invention, the energy output of the torch 6, that is, the arc current value, is kept approximately constant, except for heating and melting the sliding portion (1) between the eccentric inside 20 and the connecting portion 21, 21', which have different radii of curvature of the cam 2. On the other hand, the relative movement speed IW of the circumferential component between the sliding surface of the cam 2 and the torch 6 is made faster (as As a result, the energy input to the sliding surface per unit area of the eccentric interior 20 is smaller than that of the connecting portion 21, 21', so that the energy input to the sliding surface of the eccentric interior 20 is Depth T of chill hardened layer 30
The depths T1 and T3 of the chill hardened layers 31 and 31' formed on the sliding surfaces of the cam 2 and the connecting portions 21 and 21' are approximately constant, and the wear resistance of the sliding surfaces of the cam 2 is substantially uniform. It is what it is.
なお、曲率半径の小さいカム２の偏心内部２゜での周方
向成分の相対移動速＆ Ｖ２は、曲率半径無限大である
直線状の接続部２１での周方向成分の相対移動速度■１
に対し、次の方程式で表わされるように設定すればよい
。Note that the relative movement speed of the circumferential component at 2° inside the eccentricity of the cam 2 with a small radius of curvature &V2 is the relative movement speed of the circumferential component at the linear connecting portion 21 with an infinite radius of curvature.
, it can be set as expressed by the following equation.
ここで、Ｒは偏心内部２０の曲率半径、１は足数で、２
〜３に設定されることが望ましい。Here, R is the radius of curvature of the eccentric interior 20, 1 is the number of legs, and 2
It is desirable to set it to ~3.
第１図は本発明のカム摺動面の白銑硬化方法に用いられ
る装置の一例を示す部分的な概略断面図、第２図は第１
図の線１−１１に泊ってカム及びトーチを示す概略、側
面図、第３図は白銑硬化方法のステップを示す説明図で
ある。
１・・カムシャフト、２・・カム、４・・駆動ユニット
、５・・追従ユニット、６・・ＴＩＧ ） −チ、８・
・主軸、１２φ−主軸回転モータ、１９・・基礎内部、
２０・・偏心内部、２１，２１’・・接続部、２５・・
電極、２７・・モータ、２９・・駆動装置、３０，３１
．３１’ ・・チル硬化層。FIG. 1 is a partial schematic cross-sectional view showing an example of an apparatus used in the method of hardening white pig iron on a cam sliding surface of the present invention, and FIG.
FIG. 3 is a schematic side view of the cam and torch taken along line 1--11, and is an explanatory diagram illustrating the steps of the white pig iron hardening method. 1...Camshaft, 2...Cam, 4...Drive unit, 5...Following unit, 6...TIG) -chi, 8...
・Main shaft, 12φ-main shaft rotation motor, 19... Inside the foundation,
20... Eccentric interior, 21, 21'... Connection part, 25...
Electrode, 27... Motor, 29... Drive device, 30, 31
．． 31'... Chill hardening layer.
Claims (1)
させながら、同エネルギ発生装置により加熱浴解し白銑
硬化させる方法において、カムの曲率半径に応じて上記
エネルギ発生装置と上記カム摺動面との相対移動速度を
変化させるようにしたことを特徴とするカム摺動面の白
銑硬化方法。 ２、上記カムの曲率半径が減少するにつれ、上記エネル
ギ発生装置と上記カム摺動面との相対移動速度を連（す
るようにしたことを特徴とする特許請求の範囲第１項記
載の白紙硬化方法。[Claims] 1. In a method of hardening white pig iron by melting in a hot bath using the energy generating device while moving the cam sliding surface wJ relative to the energy generating device w, the above energy is adjusted according to the radius of curvature of the cam. A method for hardening white pig iron on a cam sliding surface, characterized in that the relative moving speed between the generating device and the cam sliding surface is changed. 2. The blank paper curing according to claim 1, characterized in that as the radius of curvature of the cam decreases, the relative movement speed of the energy generating device and the cam sliding surface is increased. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10548282A JPS58224118A (en) | 1982-06-21 | 1982-06-21 | Method for chilling sliding surface of cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10548282A JPS58224118A (en) | 1982-06-21 | 1982-06-21 | Method for chilling sliding surface of cam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58224118A true JPS58224118A (en) | 1983-12-26 |
| JPS6343449B2 JPS6343449B2 (en) | 1988-08-30 |
Family
ID=14408804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10548282A Granted JPS58224118A (en) | 1982-06-21 | 1982-06-21 | Method for chilling sliding surface of cam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58224118A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60211016A (en) * | 1984-04-04 | 1985-10-23 | Honda Motor Co Ltd | Method for working cam before remelting |
| JPS60258423A (en) * | 1984-05-22 | 1985-12-20 | Honda Motor Co Ltd | Remelting and hardening method of cam shaft |
| JPS60258420A (en) * | 1984-05-21 | 1985-12-20 | Honda Motor Co Ltd | Remelting and hardening treatment |
| JPS61522A (en) * | 1984-06-11 | 1986-01-06 | Honda Motor Co Ltd | Remelting and hardening treatment of cam shaft |
| JPS6237564A (en) * | 1985-08-09 | 1987-02-18 | Toyota Motor Corp | Manufacture of remelting chill cam shaft |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5561378A (en) * | 1978-09-14 | 1980-05-09 | Audi Ag | Remelting hardening method |
-
1982
- 1982-06-21 JP JP10548282A patent/JPS58224118A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5561378A (en) * | 1978-09-14 | 1980-05-09 | Audi Ag | Remelting hardening method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60211016A (en) * | 1984-04-04 | 1985-10-23 | Honda Motor Co Ltd | Method for working cam before remelting |
| JPS60258420A (en) * | 1984-05-21 | 1985-12-20 | Honda Motor Co Ltd | Remelting and hardening treatment |
| JPS6345446B2 (en) * | 1984-05-21 | 1988-09-09 | Honda Motor Co Ltd | |
| JPS60258423A (en) * | 1984-05-22 | 1985-12-20 | Honda Motor Co Ltd | Remelting and hardening method of cam shaft |
| JPS61522A (en) * | 1984-06-11 | 1986-01-06 | Honda Motor Co Ltd | Remelting and hardening treatment of cam shaft |
| JPS6237564A (en) * | 1985-08-09 | 1987-02-18 | Toyota Motor Corp | Manufacture of remelting chill cam shaft |
| JPH0220694B2 (en) * | 1985-08-09 | 1990-05-10 | Toyota Motor Co Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6343449B2 (en) | 1988-08-30 |
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