JP2000015381A - Formation of disk parts with shaft - Google Patents
Formation of disk parts with shaftInfo
- Publication number
- JP2000015381A JP2000015381A JP10179916A JP17991698A JP2000015381A JP 2000015381 A JP2000015381 A JP 2000015381A JP 10179916 A JP10179916 A JP 10179916A JP 17991698 A JP17991698 A JP 17991698A JP 2000015381 A JP2000015381 A JP 2000015381A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- disk
- rod
- shaped material
- disk part
- 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
Landscapes
- Forging (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は自動車のプーリーシ
ャフトのような軸の一部に円盤状部分（フランジ）を形
成した軸付き円盤部品を棒状素材（ビレット）から成形
する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a disk-shaped component with a shaft having a disk-shaped portion (flange) formed on a part of a shaft, such as a pulley shaft of an automobile, from a rod-shaped material (a billet).
【０００２】[0002]
【従来の技術】軸付き円盤部品を１本の棒状素材から成
形する場合には、軸部分と円盤部分とでは変形率（絞り
率と据込率）が大きく異なる。一方に合わせると他方で
不都合が生じる。座屈防止を考慮すると、軸部は冷間が
好ましいが、円盤部は冷間では外周部に割れが発生す
る。2. Description of the Related Art When a disk component with a shaft is formed from a single rod-shaped material, the deformation ratio (drawing ratio and upsetting ratio) of the shaft portion and the disk portion are significantly different. Incongruity with one causes disadvantages on the other. Considering prevention of buckling, the shaft portion is preferably cold, but the disk portion is cracked at the outer periphery when cold.
【０００３】逆に、円盤部に合せて温間乃至熱間で行う
と軸部に抜き勾配をつける必要があり、特に変態点以上
の熱間では酸化スケールが厚くなるので加工代を大きく
とらなければならない。On the other hand, if the temperature is adjusted between the warm and hot sides in accordance with the disk portion, it is necessary to form a draft in the shaft portion. Particularly, when the temperature is higher than the transformation point, the oxide scale becomes thicker. Must.
【０００４】そこで、棒状素材から軸付き円盤部品を成
形する方法として、特開平８−３３２５４４合公報に開
示される方法が提案されている。この方法は、ビレット
のような長尺素材を上下の工具間に挟んだ状態で、熱間
加工で長尺素材を中心軸線方向に圧縮して据込成形する
にあたり、長尺素材に中心軸線方向に温度差をつけて座
屈を防止しようというものである。Therefore, as a method of forming a disk part with a shaft from a rod-shaped material, a method disclosed in Japanese Patent Application Laid-Open No. 8-332544 has been proposed. In this method, when a long material such as a billet is sandwiched between upper and lower tools, the long material is compressed in the central axis direction by hot working and upset forming, and the long material is attached to the It is intended to prevent buckling by giving a temperature difference.
【０００５】具体的には、図８（ａ）に示すように、長
尺素材全体を一旦熱間加工温度まで加熱し、この後、同
図（ｂ）に示すように、長尺素材の中間部に断熱材を巻
いた状態で放冷して中間部の温度の低下を抑えるととも
に両端部を冷却し、この状態で据込成形して同図（ｃ）
に示すような軸付き円盤部品を得るというものである。More specifically, as shown in FIG. 8 (a), the entire long material is once heated to a hot working temperature, and thereafter, as shown in FIG. It is allowed to cool while the heat insulating material is wound around the part to suppress the decrease in the temperature of the intermediate part and to cool the both ends, and then up-molded in this state, and FIG.
The disk component with a shaft as shown in FIG.
【０００６】[0006]
【発明が解決しようとする課題】上記の先行例によれ
ば、１本の棒状素材を鍛造するにあたり、一部を冷間
で、また他の一部を熱間で成形することができる。しか
しながら、円盤部を熱間成形すると表面が先に冷却され
て表層部が固まった後に中心部が冷却されて収縮するの
で、図８（ｃ）に示すように、中心部に亀裂が生じるお
それがある。このため、徐冷しなければならず、そのた
めの設備が必要になるとともに、長時間を要してしま
う。According to the above-mentioned prior art, in forging a single rod-shaped material, a part can be formed cold and another part can be formed hot. However, when the disk portion is hot-formed, the surface is cooled first and the center portion is cooled and then contracted after the surface layer portion is hardened, so that a crack may be generated in the center portion as shown in FIG. 8 (c). is there. For this reason, it is necessary to slowly cool down, equipment for this is required, and a long time is required.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決すべく本
発明は、軸部と円盤部を有する軸付き円盤部品を棒状素
材から成形する方法として、以下の第１工程及び第２工
程を含むようにした。 （第１工程）棒状素材の表面部のうち成形後に円盤部の
外周部となる部分が最も高温で、この最も高温な部分か
ら径方向中心に向かって且つ軸方向端部に向かって徐々
に温度が低くなるように棒状素材を加熱する工程。 （第２工程）前記加熱された棒状素材のうち、軸部とな
る部分については冷間鍛造し、円盤部となる部分につい
ては温間乃至熱間鍛造する工程。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a method of molding a disk part with a shaft having a shaft part and a disk part from a rod-shaped material, including the following first step and second step. I did it. (1st process) The part which becomes the outer peripheral part of a disk part after shaping | molding among the surface parts of a rod-shaped raw material is the highest temperature, and gradually from this hottest part toward a radial center and an axial end. Heating the rod-shaped material so that the temperature is reduced. (Second step) In the heated rod-shaped material, a part to be a shaft part is subjected to cold forging, and a part to be a disk part is subjected to warm or hot forging.
【０００８】ここで、軸部となる部分の冷間鍛造として
は絞り成形、円盤部となる部分の温間乃至熱間鍛造とし
てはで据込成形が一般的である。Here, the cold forging of the portion to be the shaft portion is generally performed by drawing, and the warm or hot forging of the portion to be the disk portion is generally upset forming.
【０００９】また、軸部の絞り率が大きい場合には、１
回の絞り成形による絞り率が所定値以下になるように、
前記第２工程を複数に分割し、これに合せて温間乃至熱
間鍛造も分割する。When the reduction ratio of the shaft portion is large, 1
So that the drawing ratio by the drawing forming of the times becomes a predetermined value or less,
The second step is divided into a plurality of steps, and the warm or hot forging is also divided accordingly.
【００１０】１回の絞り成形による絞り率の目安として
は３５％以下、好ましくは３０％以下とする。また、絞
り成形の分割に合わせた温間乃至熱間鍛造の分割は、棒
状素材の軸を中心として輪状に分割し、最初の金型で内
側の部分を温間乃至熱間鍛造した後、次の金型でその外
側の輪状部分を温間乃至熱間鍛造する。As a guide of the drawing ratio by one drawing, the drawing ratio is 35% or less, preferably 30% or less. In addition, the division of warm to hot forging in accordance with the division of drawing is performed by dividing the rod-shaped material into an annular shape around the axis of the rod-shaped material, and warming or hot-forging the inner part with the first mold, and then performing the next step. Warm or hot forging the outer annular portion with the die.
【００１１】[0011]
【発明の実施の形態】以下に本発明の実施の形態を添付
図面に基づいて説明する。図１は上下の金型間に棒状素
材をセットした状態を示す断面図であり、上金型はダイ
セット１（図３参照）にクランププレート２を介してア
ッパーダイ３を取り付け、アッパーダイ３内にはアッパ
ーノックアウト４及びリターンスプリング５（図３参
照）を設け、また下金型はダイセット６にクランププレ
ート７を介してロアーダイ８を取り付け、ロアーダイ８
内にはロアーノックアウト９を設けている。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a cross-sectional view showing a state in which a rod-shaped material is set between upper and lower molds. In the upper mold, an upper die 3 is attached to a die set 1 (see FIG. 3) via a clamp plate 2 and an upper die 3 is provided. An upper knockout 4 and a return spring 5 (see FIG. 3) are provided inside the lower die, and a lower die 8 is attached to a die set 6 via a clamp plate 7.
A lower knockout 9 is provided therein.
【００１２】アッパーダイ３とロアーダイ８の間には棒
状素材１０をセットしている。この棒状素材１０は図２
に示すようにヒータ１１にて加熱されている。但し、棒
状素材１０全体が均一に加熱されているのではなく、棒
状素材１０の表面部のうち成形後に円盤部の外周部とな
る部分が最も高温で、この最も高温な部分から径方向中
心に向かって且つ軸方向端部に向かって徐々に温度が低
くなるように加熱されている。A rod material 10 is set between the upper die 3 and the lower die 8. This rod-shaped material 10 is shown in FIG.
Is heated by the heater 11 as shown in FIG. However, the entire bar-shaped material 10 is not uniformly heated, but the portion of the surface portion of the bar-shaped material 10 that becomes the outer periphery of the disk portion after molding is the highest temperature, and from the hottest portion to the center in the radial direction. The heating is performed so that the temperature gradually decreases toward the end in the axial direction.
【００１３】具体的には図２の等温線で示すように、棒
状素材１０の軸方向の中間部表面が６００℃以上になる
ようにし、棒状素材１０の軸方向の両端部は１００℃程
度になるようにする。More specifically, as shown by an isotherm in FIG. 2, the surface of the intermediate portion of the rod-shaped material 10 in the axial direction is set to 600 ° C. or more, and both ends of the rod-shaped material 10 in the axial direction are set to about 100 ° C. To be.
【００１４】上記のような温度傾斜を付与する方法とし
ては、本実施例にあってはコイルヒータ１１と棒状素材
１０との距離を調整するようにしているが、これに限ら
ず例えばコイルヒータの本数を変化させたり、棒状素材
を移動させたり任意の手段を採用できる。In the present embodiment, the distance between the coil heater 11 and the rod-shaped material 10 is adjusted as a method for imparting the above-mentioned temperature gradient. However, the present invention is not limited to this. Arbitrary means can be adopted, such as changing the number or moving the bar-shaped material.
【００１５】次いで、図３に示すように、上金型を降下
せしめ、棒状素材１０の軸部となる部分１０ａについて
は冷間（３００℃以下）で絞り成形し、円盤部となる部
分１０ｂについては温間乃至熱間（変態点温度以下）で
中心軸線方向に圧縮して据込成形する。Next, as shown in FIG. 3, the upper die is lowered, and a portion 10a serving as a shaft portion of the rod-shaped material 10 is drawn under a cold condition (300 ° C. or lower), and a portion 10b serving as a disc portion is formed. Is hot and hot (below the transformation point temperature) in the direction of the central axis to form upset.
【００１６】図４は図３に示すように第１段目の絞り成
形と据込成形が終了した直後の棒状素材１０の温度分布
を示す図であり、図２に示したように、円盤部の外周部
となる部分が最も高温で、この最も高温な部分から径方
向中心に向かって且つ軸方向端部に向かって徐々に温度
が低くなるように傾斜温度をつけた棒状素材１０を据込
成形すると、最も高温な部分は内部に入り込まず、第１
段目の据込成形された部分の最も外側部分が高温部分と
なる。FIG. 4 is a diagram showing the temperature distribution of the rod-shaped material 10 immediately after the completion of the first-stage drawing and upsetting as shown in FIG. 3, and as shown in FIG. The outermost portion of the rod-shaped material 10 having the highest temperature is set up, and the rod-shaped material 10 having an inclined temperature is set such that the temperature gradually decreases from the hottest portion toward the center in the radial direction and toward the end in the axial direction. When molding, the hottest part does not enter inside,
The outermost portion of the upset formed portion of the step is the high temperature portion.
【００１７】ところで、軸部となる部分１０ａの絞り率
が大きいと、欠陥の原因となるので、絞り率が大きい場
合には、冷間での絞り成形を複数に分割して行う。即
ち、本実施例にあっては、第１段目の絞り成形と据込成
形が終了したら、棒状素材１０を図５に示すように別の
金型装置のアッパーダイ３とロアーダイ８間にセット
し、第２段目の絞り成形と据込成形を行う。尚、絞り成
形は軸部となる部分１０ａに対して行い、据込成形は円
盤状部となる部分１０ｂに対して行う。If the drawing ratio of the portion 10a serving as the shaft portion is large, a defect is caused. Therefore, when the drawing ratio is large, cold drawing is divided into a plurality of portions. That is, in the present embodiment, after the first-stage drawing and upsetting are completed, the bar-shaped material 10 is set between the upper die 3 and the lower die 8 of another mold device as shown in FIG. Then, the second-stage drawing and upsetting are performed. The drawing is performed on the shaft portion 10a, and the upsetting is performed on the disc-shaped portion 10b.
【００１８】図６は図５に示すように第２段目の絞り成
形と据込成形が終了した直後の棒状素材１０の温度分布
を示す図であり、据込成形にあっては円盤状部となる部
分１０ｂの最外周が６００℃以上となっており、高温部
分は円盤状部となる部分１０ｂの中心部には存在してい
ない。FIG. 6 is a diagram showing the temperature distribution of the rod-shaped material 10 immediately after the completion of the second-stage drawing and upsetting as shown in FIG. The outermost periphery of the portion 10b is 600 ° C. or higher, and the high-temperature portion does not exist at the center of the portion 10b that becomes the disk-shaped portion.
【００１９】また、第２段目の据込成形では円盤状部と
なる部分１０ｂの内側部分の成形を行い、それよりも外
側部分（最も高温になっている部分）については後述す
る第３段目の据込成形にて成形する。In the second stage upsetting, an inner portion of the portion 10b to be a disk-shaped portion is formed, and an outer portion (a portion having the highest temperature) is formed in a third stage to be described later. It is formed by upsetting with eyes.
【００２０】図７は第３段目の絞り成形と据込成形を行
った状態の断面図であり、第３段目の絞り成形にあって
は軸部となる部分１０ａにスプライン加工等を行い、円
盤状部となる部分１０ｂの最外側部分について成形を行
う。この最外側部分は前記したように高温になっている
ので、割れ等の発生の虞はない。FIG. 7 is a cross-sectional view showing a state where the third-stage drawing and upsetting have been performed. In the third-stage drawing, a portion 10a serving as a shaft portion is subjected to spline processing or the like. The outermost portion of the portion 10b to be a disc-shaped portion is formed. Since the outermost portion is at a high temperature as described above, there is no fear of occurrence of cracks or the like.
【００２１】また、最外側部分よりも径方向内側部分に
ついては第２段目の据込成形にて最終形状まで成形し、
第３段目の据込成形では、最外側部分についてのみ成形
を行う。このようにすることで、小さな荷重で成形でき
る。Further, the inner part in the radial direction from the outermost part is formed to the final shape by the second stage upsetting,
In the third-stage upsetting, molding is performed only on the outermost portion. By doing so, molding can be performed with a small load.
【００２２】以上の実施例にあっては、軸付き円盤部品
としてプーリーシャフトを例にとって説明したが、これ
に限定されるものではない。例えば、メインシャフト、
カウンターシャフト、ファイナルギアーブランク、組立
式クランクシャフト、ドリブンフェース、ハブ、ドライ
ブシャフト、ドライブピニオン、ハウジングエンド、ア
クスルシャフト、バランサー、スプラインシャフト、鍔
付きボルト等に本発明を適用できる。In the above embodiment, the pulley shaft has been described as an example of a disk part with a shaft, but the present invention is not limited to this. For example, main shaft,
The present invention can be applied to a countershaft, a final gear blank, an assembled crankshaft, a driven face, a hub, a drive shaft, a drive pinion, a housing end, an axle shaft, a balancer, a spline shaft, a flanged bolt, and the like.
【００２３】[0023]
【発明の効果】以上に説明したように本発明によれば、
成形前に棒状素材を加熱するにあたり、成形後に円盤部
の外周部となる部分が最も高温で、この最も高温な部分
から径方向中心に向かって且つ軸方向端部に向かって徐
々に温度が低くなるような温度傾斜を持たせたので、円
盤部となる部分を温間乃至熱間で鍛造した際に、素材中
心部の温度上昇を抑えることができ、鍛造後に放冷して
も表層部が固まった後に中心部が冷却収縮することがな
いので、中心部で亀裂が生じることを防止できる。According to the present invention as described above,
In heating the rod-shaped material before molding, the portion that becomes the outer peripheral portion of the disk portion after molding has the highest temperature, and the temperature gradually decreases from the hottest portion toward the radial center and toward the axial end. Since the temperature gradient is given, the temperature rise in the central part of the material can be suppressed when the disk part is forged by warm or hot, and the surface layer part is cooled even after forging. Since the central portion does not shrink after cooling, it is possible to prevent the center portion from being cracked.
【００２４】また、軸部については冷間で絞り成形する
ため、絞り率が大きい場合には、絞り成形を複数に分割
して行う。この時、円盤部となる部分の温間乃至熱間鍛
造もこれに合せて分割して行えば、円盤部の成形を効率
良く行える。特に、円盤部の鍛造を分割して行う場合
に、鍛造すべき部分を棒状素材の軸を中心として輪状に
分割し、内側部分から順に鍛造するようにすることで、
低荷重で高速成形が可能になる。Further, since the shaft portion is cold drawn, if the drawing ratio is large, the drawing is divided into a plurality of portions. At this time, if the warm or hot forging of the portion to be the disc portion is also performed in accordance with this, the disc portion can be efficiently formed. In particular, when performing forging of the disk part by dividing, the part to be forged is divided into a ring shape around the axis of the rod-shaped material, and by forging sequentially from the inner part,
High speed molding with low load becomes possible.
【図１】上下の金型間に棒状素材をセットした状態を示
す断面図FIG. 1 is a sectional view showing a state in which a rod-shaped material is set between upper and lower molds.
【図２】図１の状態の棒状素材の温度分布を示す図FIG. 2 is a diagram showing a temperature distribution of a rod-shaped material in the state of FIG. 1;
【図３】第１段目の絞り成形と据込成形を行った状態の
断面図FIG. 3 is a cross-sectional view showing a state where the first-stage drawing and upsetting are performed;
【図４】図３の状態の棒状素材の温度分布を示す図FIG. 4 is a diagram showing a temperature distribution of the rod-shaped material in the state of FIG. 3;
【図５】第２段目の絞り成形と据込成形を行った状態の
断面図FIG. 5 is a cross-sectional view showing a state where the second-stage drawing and upsetting are performed;
【図６】図５の状態の棒状素材の温度分布を示す図FIG. 6 is a diagram showing a temperature distribution of the rod-shaped material in the state of FIG. 5;
【図７】第３段目の絞り成形と据込成形を行った状態の
断面図FIG. 7 is a cross-sectional view showing a state where the third-stage drawing and upsetting are performed;
【図８】（ａ）〜（ｃ）は従来の成形方法を説明した図FIGS. 8A to 8C are diagrams illustrating a conventional molding method.
１…ダイセット ２…クランププレート、３…アッパー
ダイ、４…アッパーノックアウト、８…ロアーダイ、９
…ロアーノックアウト、１０…棒状素材、１０ａ…軸部
となる部分、１０ｂ…円盤部となる部分、１１…ヒー
タ。DESCRIPTION OF SYMBOLS 1 ... Die set 2 ... Clamp plate, 3 ... Upper die, 4 ... Upper knockout, 8 ... Lower die, 9
... Lower knockout, 10 ... Bar material, 10a ... Shaft portion, 10b ... Disc portion, 11 ... Heater.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4E087 AA05 AA10 BA14 BA17 CA17 CA31 CB01 CB02 CB03 DB06 DB15 EA35 EC01 EC22 EC46 EC50 HA31 HA35 HA37 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4E087 AA05 AA10 BA14 BA17 CA17 CA31 CB01 CB02 CB03 DB06 DB15 EA35 EC01 EC22 EC46 EC50 HA31 HA35 HA37
Claims (5)
棒状素材から成形する方法であって、以下の第１工程及
び第２工程を含むことを特徴とする軸付き円盤部品の成
形方法。 （第１工程）棒状素材の表面部のうち成形後に円盤部の
外周部となる部分が最も高温で、この最も高温な部分か
ら径方向中心に向かって且つ軸方向端部に向かって徐々
に温度が低くなるように棒状素材を加熱する工程。 （第２工程）前記加熱された棒状素材のうち、軸部とな
る部分については冷間鍛造し、円盤部となる部分につい
ては温間乃至熱間鍛造する工程。1. A method for molding a disk part with a shaft having a shaft part and a disk part from a rod-shaped material, comprising the following first and second steps: . (1st process) The part which becomes the outer peripheral part of a disk part after shaping | molding among the surface parts of a rod-shaped raw material is the highest temperature, and gradually from this hottest part toward a radial center and an axial end. Heating the rod-shaped material so that the temperature is reduced. (Second step) In the heated rod-shaped material, a part to be a shaft part is subjected to cold forging, and a part to be a disk part is subjected to warm or hot forging.
方法において、軸部となる部分については冷間で絞り成
形を行い、円盤部となる部分については温間乃至熱間で
据込成形を行うことを特徴とする軸付き円盤部品の成形
方法。2. The method for forming a disk part with a shaft according to claim 1, wherein the part to be the shaft part is cold drawn and the part to be the disk part is upset between warm and hot. A molding method of a disk part with a shaft, characterized by performing molding.
円盤部品の成形方法において、前記第２工程を冷間鍛造
の絞り率が所定値以下になるように複数に分割し、これ
に合せて温間乃至熱間鍛造も分割することを特徴とする
軸付き円盤部品の成形方法。3. The method of forming a disk part with a shaft according to claim 1, wherein the second step is divided into a plurality of parts so that a drawing ratio of the cold forging is equal to or less than a predetermined value. A method for forming a disk part with a shaft, wherein warm to hot forging is also divided.
方法において、前記冷間鍛造の絞り率は３５％以下とす
ることを特徴とする軸付き円盤部品の成形方法。4. The method for forming a disk part with a shaft according to claim 3, wherein the drawing ratio of the cold forging is 35% or less.
方法において、前記温間乃至熱間鍛造の分割は、棒状素
材の軸を中心として輪状に分割し、最初の金型で内側の
部分を温間乃至熱間鍛造した後、次の金型でその外側の
輪状部分を温間乃至熱間鍛造することを特徴とする軸付
き円盤部品の成形方法。5. The method for forming a disk part with a shaft according to claim 3, wherein the division of the warm or hot forging is performed by dividing the rod-shaped material into a ring shape around the axis of the rod-shaped material, A method for forming a disk part with a shaft, characterized in that after a portion is warm or hot forged, an outer annular portion is warm or hot forged with a next die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17991698A JP4067184B2 (en) | 1998-06-26 | 1998-06-26 | Shaft disk part forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17991698A JP4067184B2 (en) | 1998-06-26 | 1998-06-26 | Shaft disk part forming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000015381A true JP2000015381A (en) | 2000-01-18 |
| JP4067184B2 JP4067184B2 (en) | 2008-03-26 |
Family
ID=16074169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17991698A Expired - Fee Related JP4067184B2 (en) | 1998-06-26 | 1998-06-26 | Shaft disk part forming method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4067184B2 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008068314A (en) * | 2006-09-11 | 2008-03-27 | Okai Tekkosho:Kk | Method for manufacturing hollow-formed product |
| CN101767174A (en) * | 2010-02-25 | 2010-07-07 | 无锡透平叶片有限公司 | Loose tooling upsetting device of continuous upsetting heads at both ends of long rod material |
| JP2012024838A (en) * | 2010-07-28 | 2012-02-09 | Ifukamu:Kk | Die apparatus for forging |
| JP2012030265A (en) * | 2010-08-02 | 2012-02-16 | Dai Ichi High Frequency Co Ltd | Method and device for working reinforcement end |
| JP5246898B1 (en) * | 2012-05-15 | 2013-07-24 | 株式会社 吉村カンパニー | Crankshaft manufacturing method and crankshaft |
| CN103752746A (en) * | 2013-12-20 | 2014-04-30 | 鞍钢股份有限公司 | Manufacturing method of pressure head used on thermal force simulation testing machine |
| CN107931496A (en) * | 2017-11-23 | 2018-04-20 | 湖南高致精工机械有限公司 | A kind of method and upset head mould for processing fixing card |
| CN110576133A (en) * | 2019-08-20 | 2019-12-17 | 顺科新能源技术股份有限公司 | Method and equipment for forming cylindrical part of sheet body |
| CN111014552A (en) * | 2019-12-04 | 2020-04-17 | 上海交通大学 | Blank making method and die for long-shaft forge pieces |
| CN113579144A (en) * | 2021-09-26 | 2021-11-02 | 中国航发北京航空材料研究院 | Upsetting die and forming method for round bar with ultra-large height-diameter ratio |
| CN114393167A (en) * | 2022-01-06 | 2022-04-26 | 钢铁研究总院 | Upsetting forming die and process for flanged hollow long shaft |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722079B (en) * | 2019-10-17 | 2021-01-01 | 浙江众通汽车零部件有限公司 | Preparation process of vertical forged shaft forging |
-
1998
- 1998-06-26 JP JP17991698A patent/JP4067184B2/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008068314A (en) * | 2006-09-11 | 2008-03-27 | Okai Tekkosho:Kk | Method for manufacturing hollow-formed product |
| CN101767174A (en) * | 2010-02-25 | 2010-07-07 | 无锡透平叶片有限公司 | Loose tooling upsetting device of continuous upsetting heads at both ends of long rod material |
| JP2012024838A (en) * | 2010-07-28 | 2012-02-09 | Ifukamu:Kk | Die apparatus for forging |
| JP2012030265A (en) * | 2010-08-02 | 2012-02-16 | Dai Ichi High Frequency Co Ltd | Method and device for working reinforcement end |
| JP5246898B1 (en) * | 2012-05-15 | 2013-07-24 | 株式会社 吉村カンパニー | Crankshaft manufacturing method and crankshaft |
| CN103752746B (en) * | 2013-12-20 | 2015-07-08 | 鞍钢股份有限公司 | Manufacturing method of pressure head used on thermal force simulation testing machine |
| CN103752746A (en) * | 2013-12-20 | 2014-04-30 | 鞍钢股份有限公司 | Manufacturing method of pressure head used on thermal force simulation testing machine |
| CN107931496A (en) * | 2017-11-23 | 2018-04-20 | 湖南高致精工机械有限公司 | A kind of method and upset head mould for processing fixing card |
| CN107931496B (en) * | 2017-11-23 | 2024-03-12 | 湖南高致精工机械有限公司 | Method for processing fixing clip and upsetting die |
| CN110576133A (en) * | 2019-08-20 | 2019-12-17 | 顺科新能源技术股份有限公司 | Method and equipment for forming cylindrical part of sheet body |
| CN111014552A (en) * | 2019-12-04 | 2020-04-17 | 上海交通大学 | Blank making method and die for long-shaft forge pieces |
| CN113579144A (en) * | 2021-09-26 | 2021-11-02 | 中国航发北京航空材料研究院 | Upsetting die and forming method for round bar with ultra-large height-diameter ratio |
| CN113579144B (en) * | 2021-09-26 | 2022-01-11 | 中国航发北京航空材料研究院 | Upsetting die and forming method for round bar with ultra-large height-diameter ratio |
| CN114393167A (en) * | 2022-01-06 | 2022-04-26 | 钢铁研究总院 | Upsetting forming die and process for flanged hollow long shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4067184B2 (en) | 2008-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2659993B1 (en) | Closed-die forging method and method of manufacturing forged article | |
| JP2000015381A (en) | Formation of disk parts with shaft | |
| US4536932A (en) | Method for eliminating low cycle fatigue cracking in integrally bladed disks | |
| US10022769B2 (en) | Method for producing a shaped part from an aluminum alloy sheet | |
| JP5982477B2 (en) | Forging method for producing a piston or piston shaft | |
| JP3256885B2 (en) | Long steel forging method | |
| US2703922A (en) | Composite turbine rotor disc and method of making same | |
| JPS5823812B2 (en) | Manufacturing method of steel quenched piston ring | |
| JP2006110621A (en) | Method for producing aluminum alloy-made die-forged product, and aluminum alloy-made preformed article for warm die-forging | |
| JP2000015388A (en) | Disk parts with shaft and formation thereof | |
| CN106391958A (en) | Method for manufacturing TC4 large-sized titanium alloy inclined tube-type die forged piece | |
| CN109108584A (en) | A kind of production technology of aluminium lithium alloy cone cylinder | |
| RU97103978A (en) | METHOD FOR PRODUCING PIPE PRODUCTS FROM ZIRCONIUM ALLOYS (OPTIONS) | |
| JP2000017410A (en) | Production of alloy casting, particularly of aluminum casting | |
| JPH0788586A (en) | Hot upset forging method | |
| US2129671A (en) | Method of manufacturing wheels | |
| JP2768849B2 (en) | Grain refining method for non-magnetic steel cylindrical forgings | |
| CN113798420B (en) | Forging method of non-magnetic retaining ring of 1Mn18Cr18N of turbogenerator | |
| JP2000033456A (en) | Formation of disk parts and forming die device | |
| JP3480568B2 (en) | High speed tool steel material for cold forging, hollow product made of high speed tool steel, and method of manufacturing the same | |
| JPS6363613B2 (en) | ||
| CN109622863B (en) | Manufacturing method for improving tooth profile precision of spline shaft type forging | |
| JP4049055B2 (en) | Method for manufacturing forged members | |
| RU2088365C1 (en) | Method of making ring blanks of ageing nickel alloys | |
| JP2000117386A (en) | Manufacture of engine valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20041201 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20061206 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20061212 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070529 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20070717 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20080108 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20080108 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110118 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| LAPS | Cancellation because of no payment of annual fees |