JP2014018802A - Manufacturing method for clutch plate - Google Patents

Manufacturing method for clutch plate Download PDF

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JP2014018802A
JP2014018802A JP2012156872A JP2012156872A JP2014018802A JP 2014018802 A JP2014018802 A JP 2014018802A JP 2012156872 A JP2012156872 A JP 2012156872A JP 2012156872 A JP2012156872 A JP 2012156872A JP 2014018802 A JP2014018802 A JP 2014018802A
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enlarged diameter
base material
diameter portion
plate
clutch plate
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JP5669788B2 (en
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Kazusane Saito
和実 斎藤
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JATCO Ltd
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JATCO Ltd
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Abstract

PROBLEM TO BE SOLVED: To manufacture a ring shaped clutch plate having strength, with a high yield.SOLUTION: The manufacturing method for a clutch plate includes: an enlarged diameter part formation step for forming an enlarged diameter part 14, in which a diameter is enlarged as going toward an end part 13b1, on a side of the end part 13b1 of a peripheral wall part 13b in a substrate 13 having a cylindrical shape including a bottom; a division step for dividing the substrate 13' in which the enlarged diameter part 14 is formed, into the enlarged diameter part 14 and a new substrate 13A obtained by removing the enlarged diameter part 14; a press step for creating a ring shaped plate-like member by pressing the enlarged diameter part 14 obtained at the division step; and a punching step for obtaining a ring shaped clutch plate, by punching the ring shaped plate-like member. The enlarged diameter part formation step, the division step, the press step, and the punching step are performed for the new substrate obtained at the division step, while a length of the peripheral wall part 13b of the new substrate obtained at the division step is longer than a length which enables formation of the enlarged diameter part 14 at the enlarged diameter part formation step.

Description

本発明は、自動変速機に用いられるクラッチ板の製造方法に関する。   The present invention relates to a method for manufacturing a clutch plate used in an automatic transmission.

図６は、従来例にかかるクラッチ板の製造方法を説明する図であって、（ａ）は、リング状のクラッチ板Ｋｐを、一枚の金属板Ｐ１を打ち抜いて製造する場合を説明する図であり、（ｂ）は、リング状のクラッチ板Ｋｐ’を製造するために、一枚の金属板Ｐ１から複数の円弧状の部材Ｐ４を打ち抜く場合を説明する図であり、（ｃ）は、（ｂ）に示した円弧状の部材Ｐ４を接続して得られるリング状のクラッチ板Ｋｐ’を説明する図である。   FIG. 6 is a diagram for explaining a method of manufacturing a clutch plate according to a conventional example. FIG. 6A is a diagram for explaining a case where a ring-shaped clutch plate Kp is manufactured by punching a single metal plate P1. (B) is a diagram for explaining a case where a plurality of arc-shaped members P4 are punched out from a single metal plate P1 in order to produce a ring-shaped clutch plate Kp ′, and (c) It is a figure explaining the ring-shaped clutch board Kp 'obtained by connecting the circular arc-shaped member P4 shown to (b).

車両用自動変速機に用いられるクラッチ板Ｋｐは、軸方向から見てリング形状を有しており、このクラッチ板Ｋｐの製造方法として、矩形形状の金属板Ｐ１を、リング状に打ち抜いて製造する方法が一般に知られている（図６の（ａ）参照）。
ここで、リング状のクラッチ板Ｋｐを打ち抜くための金属板Ｐ１は、比較的に大きな面積を有しているにもかかわらず、リング状のクラッチ板Ｋｐを打ち抜いた後の残りの部分Ｐ２、Ｐ３は、他の用途に転用されることなく、そのまま捨てられることが多い。
そのため、かかる製造方法では、歩留まりが悪く、クラッチ板Ｋｐの製造コストが高いという問題があった。 The clutch plate Kp used in the vehicle automatic transmission has a ring shape when viewed from the axial direction. As a method for manufacturing the clutch plate Kp, a rectangular metal plate P1 is punched into a ring shape. The method is generally known (see FIG. 6A).
Here, although the metal plate P1 for punching the ring-shaped clutch plate Kp has a relatively large area, the remaining portions P2, P3 after punching the ring-shaped clutch plate Kp are performed. Are often discarded without being diverted to other uses.
Therefore, such a manufacturing method has a problem that the yield is poor and the manufacturing cost of the clutch plate Kp is high.

そこで、リング状のクラッチ板Ｋｐ’を、複数の円弧状の部材Ｐ４を接続して製造することが、例えば特許文献１に開示されている。
かかる製造方法の場合、図６の（ｂ）、（ｃ）に示すように、一枚の金属板Ｐ１において、打ち抜かれる複数の円弧状の部材Ｐ４を詰めて設定することで、金属板Ｐ１における捨てられる部分Ｐ５の面積を抑えることができる。 Therefore, for example, Patent Document 1 discloses that a ring-shaped clutch plate Kp ′ is manufactured by connecting a plurality of arc-shaped members P4.
In the case of such a manufacturing method, as shown in FIGS. 6B and 6C, by setting a plurality of arc-shaped members P4 to be punched in one metal plate P1, the metal plate P1 The area of the discarded portion P5 can be suppressed.

特開２００７−１７７９３１号公報JP 2007-177931 A

しかし、複数の円弧状の部材Ｐ４を接続してリング状のクラッチ板Ｋｐ’を製造すると、得られたクラッチ板Ｋｐ’の強度が、一枚の金属板を打ち抜いて作成したクラッチ板Ｋｐに比べて弱くなる虞がある。   However, when a ring-shaped clutch plate Kp ′ is manufactured by connecting a plurality of arc-shaped members P4, the strength of the obtained clutch plate Kp ′ is higher than that of a clutch plate Kp created by punching a single metal plate. There is a risk of weakening.

そこで、十分な強度を備えるリング状のクラッチ板を、歩留まりよく製造できるようにすることが求められている。   Therefore, it is required to manufacture a ring-shaped clutch plate having sufficient strength with a high yield.

本発明は、
筒状基材の長手方向における一端側に、前記一端に向かうにつれて拡径する拡径部を形成する拡径部形成工程と、
前記拡径部が形成された前記筒状基材を、前記拡径部と、前記拡径部が除かれた新たな筒状基材とに分割する分割工程と、
前記分割工程で得られた拡径部のプレスにより、リング状の板状部材を作成するプレス工程と、
前記リング状の板状部材の打ち抜きにより、リング状のクラッチ板を得る打ち抜き工程と、を備え、
前記分割工程で得られた新たな筒状基材の前記長手方向の長さが、前記拡径部形成工程において拡径部を形成可能な長さである間は、前記分割工程で得られた新たな筒状基材を用いて、前記拡径部形成工程と、前記分割工程と、前記プレス工程と、前記打ち抜き工程とを実行することを特徴とするクラッチ板の製造方法。 The present invention
On the one end side in the longitudinal direction of the cylindrical base material, an enlarged diameter portion forming step for forming an enlarged diameter portion that expands toward the one end, and
A dividing step of dividing the cylindrical base material formed with the enlarged diameter portion into the enlarged diameter portion and a new cylindrical base material from which the enlarged diameter portion is removed;
A press step for creating a ring-shaped plate-like member by pressing the expanded portion obtained in the dividing step;
A punching step of obtaining a ring-shaped clutch plate by punching the ring-shaped plate member,
While the length in the longitudinal direction of the new cylindrical base material obtained in the dividing step is a length capable of forming the enlarged diameter portion in the enlarged diameter portion forming step, it was obtained in the dividing step. A method for manufacturing a clutch plate, comprising performing the enlarged diameter portion forming step, the dividing step, the pressing step, and the punching step using a new cylindrical base material.

本発明によれば、分割工程で得られる新たな筒状基材の長手方向の長さが、拡径部を形成可能な長さである間は、新たに得られた筒状基材を用いて、拡径部形成工程から打ち抜き工程までが繰り返し実行されるので、最初に用意したひとつの筒状基材から、複数のクラッチ板を得ることができる。
そして、最初に用意した筒状基材のうち、拡径部を形成できない長さの部分のみが、最終的に廃棄されることになる。よって、筒状基材における廃棄される部分を少なくすることができるので、リング状のクラッチ板を歩留まり良く製造できる。
また、筒状基材からリング状のクラッチ板を製造するため、このクラッチ板の強度は、円弧状の部材を接続して製造したリング状のクラッチ板よりも高い剛性強度となる。
よって、十分な強度を備えるリング状のクラッチ板を、歩留まりよく製造できる。 According to this invention, while the length of the longitudinal direction of the new cylindrical base material obtained by a division | segmentation process is the length which can form an enlarged diameter part, the newly obtained cylindrical base material is used. In addition, since the process from the enlarged diameter portion forming process to the punching process is repeatedly performed, a plurality of clutch plates can be obtained from one cylindrical base material prepared first.
And only the part of the length which cannot form an enlarged diameter part among the cylindrical base materials prepared initially is finally discarded. Therefore, since the discarded portion in the cylindrical base material can be reduced, a ring-shaped clutch plate can be manufactured with a high yield.
Moreover, since a ring-shaped clutch plate is manufactured from a cylindrical base material, the strength of the clutch plate is higher than that of a ring-shaped clutch plate manufactured by connecting arc-shaped members.
Therefore, a ring-shaped clutch plate having sufficient strength can be manufactured with high yield.

実施の形態にかかるクラッチ板の製造方法のフローチャートである。It is a flowchart of the manufacturing method of the clutch board concerning embodiment. 実施の形態にかかるクラッチ板の製造方法を説明する図である。It is a figure explaining the manufacturing method of the clutch board concerning an embodiment. 実施の形態にかかるクラッチ板の製造方法を説明する図である。It is a figure explaining the manufacturing method of the clutch board concerning an embodiment. 実施の形態にかかるクラッチ板の製造方法を説明する図である。It is a figure explaining the manufacturing method of the clutch board concerning an embodiment. 実施の形態にかかるクラッチ板の製造方法を説明する図である。It is a figure explaining the manufacturing method of the clutch board concerning an embodiment. 従来例にかかるクラッチ板の製造方法を説明する図である。It is a figure explaining the manufacturing method of the clutch board concerning a prior art example.

以下、自動変速機に用いられるクラッチ板であって、内周に複数の歯部が設けられたクラッチ板１６（図４の（ｃ）参照）の場合を例に挙げて、実施の形態にかかるクラッチ板の製造方法を説明する。
図１は、実施の形態にかかるクラッチ板１６の製造方法のフローチャートである。なお、図１では、加工処理の各工程（Ｓ１〜Ｓ６）と共に、加工処理に用いられる部材や加工処理の結果として得られる部材を示している。
図２は、一枚の矩形形状の金属板１０から、有底円筒形状の基材１３の作成までを説明する図である。なお、図２における（ａ）から（ｃ）では、各部材（金属板１０、板状部材１１、残材１２、基材１３）の平面図の下側に、各部材の断面図（Ａ−Ａ断面図）であって、これらの厚みを強調したものを併記している。 Hereinafter, a clutch plate used in an automatic transmission, which is a clutch plate 16 (see FIG. 4C) provided with a plurality of teeth on the inner periphery, will be described as an example. A method for manufacturing the clutch plate will be described.
FIG. 1 is a flowchart of the manufacturing method of the clutch plate 16 according to the embodiment. In addition, in FIG. 1, the member used as a result of the process used as a result of a process or the process used with each process (S1-S6) of a process is shown.
FIG. 2 is a diagram for explaining the process from the production of one rectangular metal plate 10 to the bottomed cylindrical base material 13. In addition, in (a) to (c) in FIG. 2, a sectional view (A- (A cross-sectional view), which emphasizes these thicknesses.

実施の形態にかかるクラッチ板の製造方法では、一枚の矩形形状の金属板１０（図２参照）から、クラッチ板１６（図４参照）が製造される。
ここで、金属板１０は、クラッチ板１６を構成する金属材料から構成されており、全域に亘って略均等な厚みＷ１を有している（図２の（ａ）参照）。 In the clutch plate manufacturing method according to the embodiment, the clutch plate 16 (see FIG. 4) is manufactured from one rectangular metal plate 10 (see FIG. 2).
Here, the metal plate 10 is comprised from the metal material which comprises the clutch board 16, and has substantially uniform thickness W1 over the whole region (refer Fig.2 (a)).

始めに、ステップＳ１（図１参照）において、金属板１０の円形打ち抜きにより、円形の板状部材１１が作成される。この際に、板状部材１１と整合する大きさの開口１２ａを中央部に有する残材１２が、円形の板状部材１１と共に得られることになるが、この残材１２は、以降のクラッチ板１６の製造に用いられずに廃棄される。   First, in step S <b> 1 (see FIG. 1), the circular plate member 11 is created by circular punching of the metal plate 10. At this time, the remaining material 12 having the opening 12a having a size matching the plate-like member 11 at the center is obtained together with the circular plate-like member 11, and this remaining material 12 is obtained from the subsequent clutch plate. It is not used for the production of 16 but discarded.

続くステップＳ２では、板状部材１１に対する絞り加工により、有底円筒形状の基材１３が作成される。
この基材１３は、軸方向から見て円形の底部１３ａと、底部１３ａの外周を全周に亘って囲む周壁部１３ｂとを備えており、周壁部１３ｂの底部１３ａからの高さｈ１は、全周に亘って同じ高さに形成されている。
なお、周壁部１３ｂの内径Ｄ１は、最終的に得られるクラッチ板１６の内径Ｄａ（図４参照）よりも小さい径となるように設定されている（Ｄａ＞Ｄ１）。クラッチ板１６の歯部１６１の形成しろを確保するためである。 In subsequent step S <b> 2, a bottomed cylindrical base material 13 is created by drawing the plate-like member 11.
The base material 13 includes a circular bottom portion 13a as viewed from the axial direction, and a peripheral wall portion 13b surrounding the outer periphery of the bottom portion 13a over the entire circumference, and the height h1 of the peripheral wall portion 13b from the bottom portion 13a is It is formed at the same height over the entire circumference.
Note that the inner diameter D1 of the peripheral wall portion 13b is set to be smaller than the inner diameter Da (see FIG. 4) of the finally obtained clutch plate 16 (Da> D1). This is to secure a margin for forming the tooth portion 161 of the clutch plate 16.

図３は、基材１３から、拡径部１４と新たな基材１３Ａの作成までを説明する図である。なお、図３における（ａ）から（ｃ）でも、各部材（基材１３、１３’、拡径部１４、新たな基材１３Ａ）の平面図の下側に、各部材の断面図（Ａ−Ａ断面図）であって、これらの厚みを強調したものを併記している。   FIG. 3 is a diagram illustrating from the base material 13 to the creation of the enlarged diameter portion 14 and a new base material 13A. 3A to 3C, the sectional view (A) of each member is shown below the plan view of each member (base materials 13, 13 ′, enlarged diameter portion 14, and new base material 13A). -A sectional view), which emphasizes these thicknesses.

ステップＳ３（図１参照）では、基材１３の周壁部１３ｂの開口側の端部１３ｂ１側にフレア加工を施して、先端側に向かうにつれて内径Ｄ２が大きくなる拡径部１４を形成する。
拡径部１４は、図３の（ａ）に示す基材１３において、周壁部１３ｂにおける所定高さｈａの範囲を、径方向外側に曲げて形成されており、この高さｈａは、最終的に得られるリング状のクラッチ板１６の径方向の幅Ｗと外径Ｄｂ（図４の（ｃ）参照）に応じて設定される。 In step S3 (see FIG. 1), the end portion 13b1 on the opening side of the peripheral wall portion 13b of the base material 13 is flared to form the enlarged diameter portion 14 in which the inner diameter D2 increases toward the distal end side.
The enlarged diameter portion 14 is formed by bending a range of a predetermined height ha in the peripheral wall portion 13b outward in the radial direction in the base material 13 shown in FIG. 3 (a). Is set in accordance with the radial width W of the ring-shaped clutch plate 16 and the outer diameter Db (see FIG. 4C).

続くステップＳ４では、拡径部１４が形成された基材１３’において、周壁部１３ｂにおける拡径部１４の基点１３ｂ２（周壁部１３ｂにおける折れ曲がりの基点）を、底部１３ａに対して水平な水平線Ｚ（図３（ｂ）参照）に沿って切断する。これにより、拡径部１４が形成された基材１３’が、拡径部１４と、周壁部１３ｂの高さが低くなった新たな基材１３Ａとに分割される。ここで、新たに得られた基材１３Ａの周壁部１３ｂの底部１３ａからの高さｈ２は、前記した基材１３の周壁部１３ｂの高さｈ１よりも、切断した拡径部１４の高さｈａ（図３の（ａ）参照）の分だけ低くなっている（ｈ１＞ｈ２）。   In subsequent step S4, in the base material 13 'on which the enlarged diameter portion 14 is formed, a base point 13b2 of the enlarged diameter portion 14 in the peripheral wall portion 13b (a bent origin point in the peripheral wall portion 13b) is set to a horizontal line Z that is horizontal to the bottom portion 13a. Cut along (see FIG. 3B). Thereby, the base material 13 ′ on which the enlarged diameter portion 14 is formed is divided into the enlarged diameter portion 14 and a new base material 13 </ b> A in which the height of the peripheral wall portion 13 b is lowered. Here, the height h2 from the bottom portion 13a of the peripheral wall portion 13b of the base material 13A newly obtained is higher than the height h1 of the peripheral wall portion 13b of the base material 13 described above. It is lower by the amount of ha (see (a) in FIG. 3) (h1> h2).

実施の形態では、周壁部１３ｂの一端（端部１３ｂ１）側が、全周に亘って径方向外側に曲げられて拡径部１４が形成されており、拡径部１４が形成された有底円筒形状の基材１３’では、周壁部１３ｂの拡径部１４側（基点１３ｂ２側）の剛性強度が、拡径部１４により高められている。
そのため、周壁部１３ｂを拡径部１４の基点１３ｂ２で切断する際に、切断時に作用する応力で周壁部１３ｂの拡径部１４側が変形することが好適に防止されると共に、拡径部１４と周壁部１３ｂとが、底部１３ａに対して水平な水平線Ｚを境に分断できるようになっている。 In the embodiment, one end (end portion 13b1) side of the peripheral wall portion 13b is bent radially outward over the entire circumference to form the enlarged diameter portion 14, and the bottomed cylinder in which the enlarged diameter portion 14 is formed. In the shaped base material 13 ′, the rigidity of the peripheral wall portion 13 b on the enlarged diameter portion 14 side (base point 13 b 2 side) is enhanced by the enlarged diameter portion 14.
Therefore, when the peripheral wall portion 13b is cut at the base point 13b2 of the enlarged diameter portion 14, it is suitably prevented that the enlarged diameter portion 14 side of the peripheral wall portion 13b is deformed by the stress acting at the time of cutting. The peripheral wall portion 13b can be divided at a horizontal line Z that is parallel to the bottom portion 13a.

また、周壁部１３ｂの拡径部１４側の剛性強度が、拡径部１４により高められていることにより、新たな基材１３Ａの周壁部１３ｂを軸方向から見たときの形状が、拡径部１４が形成される前の基材１３の周壁部１３ｂと同じ円形となるようになっている。   Further, the rigidity strength of the peripheral wall portion 13b on the side of the enlarged diameter portion 14 is enhanced by the enlarged diameter portion 14, so that the shape when the peripheral wall portion 13b of the new base material 13A is viewed from the axial direction is expanded in diameter. It becomes the same circular shape as the surrounding wall part 13b of the base material 13 before the part 14 is formed.

ここで、拡径部１４の底部１３ａに対する傾きθは、周壁部１３ｂの剛性強度を高めることができる傾きであれば良く、実施の形態では、大凡４５°になるように設定されている。   Here, the inclination θ of the enlarged diameter portion 14 with respect to the bottom portion 13a may be any inclination that can increase the rigidity strength of the peripheral wall portion 13b, and is set to be approximately 45 ° in the embodiment.

図４は、拡径部１４からクラッチ板１６の作成までを説明する図である。なお、図４における（ａ）から（ｃ）でも、各部材（拡径部１４、板状部材１５、クラッチ板１６）の平面図の下側に、各部材の断面図（Ａ−Ａ断面図）であって、これらの厚みを強調したものを併記している。   FIG. 4 is a diagram for explaining the process from the enlarged diameter portion 14 to the creation of the clutch plate 16. 4A to 4C, cross-sectional views (AA cross-sectional views) of each member are provided below the plan view of each member (the enlarged diameter portion 14, the plate-like member 15, and the clutch plate 16). ) And emphasized these thicknesses.

ステップＳ５（図１参照）では、ステップＳ４において得られた拡径部１４のコイニングにより、軸方向から見てリング状の板状部材１５を作成する。
ここで、前記したステップＳ４により得られる拡径部１４では、リング状の基部１４０の内周１４０ａ側と外周１４０ｂ側とが、拡径部１４の中心線Ｘの軸方向でオフセットしており、図４の（ａ）の場合には、外周１４０ｂ側のほうが、内周側１４０ａよりも上側に位置した形状を成している。そのため、このステップＳ５におけるコイニングでは、拡径部１４の基部１４０における外周１４０ｂ側が、図中矢印ｆで示す方向に曲げられて、最終的にリング状の板状部材１５が形成される。 In step S5 (see FIG. 1), a ring-shaped plate-like member 15 is created as seen from the axial direction by coining the enlarged diameter portion 14 obtained in step S4.
Here, in the enlarged diameter portion 14 obtained by the above-described step S4, the inner circumference 140a side and the outer circumference 140b side of the ring-shaped base portion 140 are offset in the axial direction of the center line X of the enlarged diameter portion 14, In the case of FIG. 4A, the outer periphery 140b side has a shape positioned on the upper side of the inner periphery side 140a. Therefore, in the coining in step S5, the outer periphery 140b side of the base portion 140 of the enlarged diameter portion 14 is bent in the direction indicated by the arrow f in the figure, and the ring-shaped plate member 15 is finally formed.

実施の形態では、拡径部１４の中心線Ｘに対する基部１４０の傾きθ１が大凡９０°となるまで、リング状の基部１４０を変形させて、リング状の板状部材１５を形成しており、基部１４０が、コイニングの際に中心線Ｘの軸方向に大きく圧縮されないようにしている。
そのため、板状部材１５におけるリング状の基部１５０の径方向の幅Ｗ２は、拡径部１４におけるリング状の基部１４０の径方向の幅ｈａよりも僅かに大きい幅になるが、基部１５０の内周１５０ａおよび外周１５０ｂの軸方向から見た形状は、拡径部１４の内周１４０ａおよび外周１４０ｂの軸方向から見た形状から大きく変形することなく、略円形に保たれるようになっている。 In the embodiment, the ring-shaped base portion 140 is deformed until the inclination θ1 of the base portion 140 with respect to the center line X of the enlarged diameter portion 14 is approximately 90 °, and the ring-shaped plate-like member 15 is formed. The base 140 is prevented from being greatly compressed in the axial direction of the center line X during coining.
Therefore, the radial width W2 of the ring-shaped base portion 150 in the plate-like member 15 is slightly larger than the radial width ha of the ring-shaped base portion 140 in the expanded diameter portion 14. The shape of the circumference 150a and the outer circumference 150b seen from the axial direction is maintained in a substantially circular shape without greatly changing from the shape of the inner circumference 140a and the outer circumference 140b of the enlarged diameter portion 14 seen from the axial direction. .

ステップＳ６では、リング状の板状部材１５のプレス打ち抜きにより、リング状の基部１６０の内周に歯部１６１が形成されたクラッチ板１６が作成される。この際に、板状部材１５の内周１５０ａ側と外周１５０ｂ側の僅かな部分１５ａ、１５ｂが、残材１７として廃棄されることになる。
ここで、図４の（ｂ）に示す基部１５０では、基部１５０の内周１５０ａにおける歯部１６１が形成される範囲を符号１５ａを用いて示しており、最終的に形成される歯部１６１の形状の図示は省略している。 In step S <b> 6, the clutch plate 16 in which the tooth portion 161 is formed on the inner periphery of the ring-shaped base portion 160 is created by press punching the ring-shaped plate-shaped member 15. At this time, the slight portions 15 a and 15 b on the inner peripheral 150 a side and the outer peripheral 150 b side of the plate-like member 15 are discarded as the remaining material 17.
Here, in the base 150 shown in FIG. 4B, the range in which the tooth portion 161 is formed on the inner periphery 150a of the base 150 is indicated by reference numeral 15a, and the tooth portion 161 to be finally formed is shown. Illustration of the shape is omitted.

ここで、前記したステップ４では、拡径部１４の他に、周壁部１３ｂの高さが低くなった新たな有底円筒形状の基材１３Ａが得られる。
この基材１３Ａは、ステップＳ７において、周壁部１３ｂの高さが、新たに拡径部１４を形成することができる高さであるか否か、すなわちフレア加工が可能な高さであるか否かが確認される。 Here, in step 4 described above, in addition to the enlarged diameter portion 14, a new bottomed cylindrical base material 13A in which the height of the peripheral wall portion 13b is reduced is obtained.
In the base material 13A, in step S7, whether or not the height of the peripheral wall portion 13b is a height at which the diameter-expanded portion 14 can be newly formed, that is, whether or not the flare process is possible. Is confirmed.

そして、フレア加工が可能な高さである場合には、新たな基材１３Ａに対してフレア加工が行われて、フレア加工により形成された拡径部１４から、新たなクラッチ板１６が形成されることになる。
よって、新たな基材における周壁部１３ｂの高さが、フレア加工が可能な高さである間は、フレア加工（図１：Ｓ３）と分割（図１：Ｓ４）が繰り返し実行されるので、フレア加工の繰り返し回数に応じて決まる所定枚数のクラッチ板１６が、最初の金属板１０から作成されることになる。 When the height is such that flare processing is possible, flare processing is performed on the new base material 13A, and a new clutch plate 16 is formed from the enlarged diameter portion 14 formed by the flare processing. Will be.
Therefore, flare processing (FIG. 1: S3) and division (FIG. 1: S4) are repeatedly executed while the height of the peripheral wall portion 13b in the new base material is a height that allows flare processing. A predetermined number of clutch plates 16 determined according to the number of repetitions of flare processing are created from the first metal plate 10.

図５は、最初に形成された有底円筒形状の基材１３から、フレア加工（図１：Ｓ３）と分割（図１：Ｓ４）が実行される毎に得られる新たな基材１３Ａ・・・１３Ｘを説明する図である。   FIG. 5 shows a new base material 13A that is obtained each time flare processing (FIG. 1: S3) and division (FIG. 1: S4) are performed from the bottomed cylindrical base material 13 formed first. -It is a figure explaining 13X.

ここで、実施の形態にかかるクラッチ板１６の製造方法では、フレア加工（図１：Ｓ３）と分割（図１：Ｓ４）が実行される毎に、周壁部１３ｂの高さが前よりも低くなった有底円筒形状の基材１３Ａ・・・１３Ｘが得られることになる。   Here, in the manufacturing method of the clutch plate 16 according to the embodiment, the height of the peripheral wall portion 13b is lower than before each time flare processing (FIG. 1: S3) and division (FIG. 1: S4) are performed. Thus, the bottomed cylindrical base material 13A... 13X is obtained.

そのため、フレア加工（図１：Ｓ３）と分割（図１：Ｓ４）が複数回行われると、新たに得られる有底筒状部材の周壁部１３ｂの高さが、フレア加工を施すことのできない高さｈｘに達することになる（図５の（ｄ）参照）。
かかる場合、フレア加工を施すことができない高さｈｘとなった周壁部１３ｂを有する基材１３Ｘは、廃棄されることになる（図１：Ｓ７）。 Therefore, when flare processing (FIG. 1: S3) and division (FIG. 1: S4) are performed a plurality of times, the height of the peripheral wall portion 13b of the newly obtained bottomed cylindrical member cannot be subjected to flare processing. The height hx is reached (see (d) of FIG. 5).
In this case, the base material 13X having the peripheral wall portion 13b having a height hx that cannot be subjected to flare processing is discarded (FIG. 1: S7).

ここで、実施の形態では、有底円筒形状の基材１３の周壁部１３ｂの高さを低くしながら、クラッチ板１６が作成されるようになっているが、周壁部１３ｂの高さが低くなっても、周壁部１３ｂの下端側の剛性が底部１３ａにより保持されるようになっている。
そのため、周壁部１３ｂの高さが、フレア加工を施すことができない高さｈｘとなる直前の基材１３Ｘ−１では、周壁部１３ｂの高さｈｘ−１が低いにもかかわらず、周壁部１３ｂの剛性強度が底部１３ａにより確保されている。
よって、かかる基材１３Ｘ−１に対してフレア加工を行っても、周壁部１３ｂや拡径部１４の形状が大きく崩れることがないようにされている。また、フレア加工に続く分割時に、周壁部１３ｂにカッタなどの応力が作用しても、周壁部１３ｂから分離される拡径部１４の形状が大きく崩れることがないようにされている。 Here, in the embodiment, the clutch plate 16 is created while reducing the height of the peripheral wall portion 13b of the bottomed cylindrical base material 13, but the height of the peripheral wall portion 13b is low. Even so, the rigidity of the lower end side of the peripheral wall portion 13b is held by the bottom portion 13a.
Therefore, in the base material 13X-1 immediately before the height of the peripheral wall portion 13b reaches the height hx at which flare processing cannot be performed, the peripheral wall portion 13b is low although the height hx-1 of the peripheral wall portion 13b is low. Is secured by the bottom 13a.
Therefore, even if flare processing is performed on the base material 13X-1, the shapes of the peripheral wall portion 13b and the enlarged diameter portion 14 are not greatly collapsed. In addition, even when a stress such as a cutter acts on the peripheral wall portion 13b during the division following the flare processing, the shape of the enlarged diameter portion 14 separated from the peripheral wall portion 13b is not greatly collapsed.

前記した実施の形態では、一枚の矩形形状の金属板１０からクラッチ板１６を製造する場合を例に挙げて説明をしたが、円筒状の周壁部１３ｂのみからなる基材を用意して、この円筒状の周壁部１３ｂのみからなる基材からクラッチ板１６を製造しても良い。
また、一枚の矩形形状の金属板１０ではなく、一枚の円形の金属板（板状部材１１）を用意して、この板状部材１１からクラッチ板１６を製造するようにしても良い。 In the above-described embodiment, the case where the clutch plate 16 is manufactured from one rectangular metal plate 10 has been described as an example, but a base material composed only of the cylindrical peripheral wall portion 13b is prepared, You may manufacture the clutch board 16 from the base material which consists only of this cylindrical surrounding wall part 13b.
In addition, instead of the single rectangular metal plate 10, a single circular metal plate (plate-like member 11) may be prepared, and the clutch plate 16 may be manufactured from the plate-like member 11.

以上の通り、実施の形態では、筒状の周壁部１３ｂを有する基材１３において、周壁部１３ｂの長手方向の一端（端部１３ｂ１）側に、当該端部１３ｂ１に向かうにつれて拡径する拡径部１４を形成する拡径部形成工程（図１：Ｓ３）と、
拡径部１４が形成された基材１３’を、拡径部１４と、拡径部１４が除かれた新たな基材１３Ａとに分割する分割工程（図１：Ｓ４）と、
分割工程で得られた拡径部１４のコイニングにより、リング状の板状部材１５を作成するコイニング工程（図１：Ｓ５）と、
リング状の板状部材１５の打ち抜きにより、内周に歯部１６１を備えるリング状のクラッチ板１６を得る打ち抜き工程（図１：Ｓ６）と、を備え、
分割工程で得られた新たな基材の周壁部１３ｂの長手方向の長さが、拡径部形成工程において、拡径部１４を形成できない長さ（ｈｘ）よりも長い間は、分割工程で得られた新たな基材１３Ａ・・・１３Ｘ−１に対し、拡径部形成工程と、分割工程と、プレス工程と、打ち抜き工程とを実行して、クラッチ板１６を作成し、
分割工程で得られた新たな基材１３Ｘの周壁部１３ｂの長手方向の長さが、拡径部１４を形成できない長さ（ｈｘ）になると、当該基材１３Ｘを廃棄する構成のクラッチ板１６の製造方法とした。 As described above, in the embodiment, in the base material 13 having the cylindrical peripheral wall portion 13b, the diameter is increased toward the one end (end portion 13b1) in the longitudinal direction of the peripheral wall portion 13b toward the end portion 13b1. An enlarged diameter portion forming step for forming the portion 14 (FIG. 1: S3);
A dividing step (FIG. 1: S4) for dividing the base material 13 ′ having the enlarged diameter portion 14 into the enlarged diameter portion 14 and a new base material 13A from which the enlarged diameter portion 14 has been removed;
A coining step (FIG. 1: S5) for creating a ring-shaped plate-like member 15 by coining the enlarged diameter portion 14 obtained in the dividing step;
A punching step (FIG. 1: S6) of obtaining a ring-shaped clutch plate 16 having a tooth portion 161 on the inner periphery by punching the ring-shaped plate-like member 15;
While the length in the longitudinal direction of the peripheral wall portion 13b of the new base material obtained in the dividing step is longer than the length (hx) where the enlarged diameter portion 14 cannot be formed in the enlarged diameter portion forming step, the dividing step is performed. With respect to the obtained new base material 13A... 13X-1, the enlarged diameter portion forming step, the dividing step, the pressing step, and the punching step are executed to create the clutch plate 16,
When the length in the longitudinal direction of the peripheral wall portion 13b of the new base material 13X obtained in the dividing step becomes a length (hx) at which the expanded diameter portion 14 cannot be formed, the clutch plate 16 configured to discard the base material 13X. It was set as the manufacturing method of this.

このように構成すると、分割工程で得られる新たな基材１３の長手方向の長さが、拡径部１４を形成できない長さ（ｈｘ）よりも長い間は、新たに得られた基材１３Ａ・・・１３Ｘ−１を用いて、拡径部形成工程から打ち抜き工程までが繰り返し実行されるので、最初に用意したひとつの基材１３から、複数のクラッチ板１６を得ることができる。
そして、最初に用意した基材１３のうち、拡径部１４を形成できない長さ（ｈｘ）となった周壁部１３ｂが残された基材１３Ｘのみが、最終的に廃棄されることになる。よって、基材１３における廃棄される部分を少なくすることができるので、リング状のクラッチ板１６を歩留まり良く製造できる。
また、基材１３から得られるリング状の板状部材１５からリング状のクラッチ板１６が作成されるため、得られたクラッチ板１６の強度は、円弧状の部材Ｐ４を接続して製造したリング状のクラッチ板Ｋｐ’よりも高い剛性強度となる。
よって、十分な強度を備えるリング状のクラッチ板１６を、歩留まりよく製造できる。 If comprised in this way, while the length of the longitudinal direction of the new base material 13 obtained at a division | segmentation process is longer than the length (hx) which cannot form the enlarged diameter part 14, newly obtained base material 13A ... Since 13X-1 is used repeatedly from the enlarged diameter portion forming step to the punching step, a plurality of clutch plates 16 can be obtained from one base material 13 prepared first.
And only the base material 13X with which the peripheral wall part 13b used as the length (hx) which cannot form the enlarged diameter part 14 was left among the base materials 13 prepared initially is discarded finally. Therefore, since the discarded part in the base material 13 can be reduced, the ring-shaped clutch plate 16 can be manufactured with a high yield.
Further, since the ring-shaped clutch plate 16 is made from the ring-shaped plate member 15 obtained from the base material 13, the strength of the obtained clutch plate 16 is a ring manufactured by connecting the arc-shaped member P4. The rigidity is higher than that of the clutch plate Kp ′.
Therefore, the ring-shaped clutch plate 16 having sufficient strength can be manufactured with high yield.

特に、リング状の基部１４０の内周１４０ａ側と外周１４０ｂ側とが、中心線Ｘの軸方向でオフセットした拡径部１４のコイニングにより、外径側１４０ｂが内径側１４０ａの径方向外側に位置するまで拡径部１４を変形させてリング状の板状部材１５を形成する構成とした。
リング状に接続した線材などをプレスしてリング状の板状部材を作製する場合、得られるリング状の板状部材の内周および外周の形状をコントロールすることが困難であるため、クラッチ板の打ち抜きに必要な径方向の幅を有するリング状の板状部材を安定して作成することが難しかった。
上記のように構成すると、コイニングの際に、拡径部１４の基部１４０が中心線Ｘの軸方向に大きく圧縮されないので、得られる板状部材１５の基部１５０の内周１５０ａおよび外周１５０ｂの軸方向から見た形状が、拡径部１４の内周１４０ａおよび外周１４０ｂの軸方向から見た形状から大きく変形することなく略円形に保たれるようになる。
よって、得られる板状部材１５の基部１５０の幅Ｗ２は、拡径部１４の基部１４０の幅ｈａから大きく変化しないので、クラッチ板１６の打ち抜きに必要な径方向の幅を有するリング状の板状部材１５を安定して得ることができる。 In particular, the outer diameter side 140b is positioned on the radially outer side of the inner diameter side 140a due to the coining of the enlarged diameter portion 14 in which the inner circumference 140a side and the outer circumference 140b side of the ring-shaped base 140 are offset in the axial direction of the center line X. Until then, the enlarged diameter portion 14 is deformed to form the ring-shaped plate member 15.
When a ring-shaped plate member is manufactured by pressing a wire connected in a ring shape, it is difficult to control the inner and outer shapes of the obtained ring-shaped plate member. It has been difficult to stably produce a ring-shaped plate member having a radial width necessary for punching.
With the configuration as described above, the base 140 of the enlarged diameter portion 14 is not greatly compressed in the axial direction of the center line X during coining, so the shafts of the inner periphery 150a and the outer periphery 150b of the base 150 of the obtained plate-like member 15 are obtained. The shape viewed from the direction is maintained in a substantially circular shape without greatly deforming from the shape viewed from the axial direction of the inner periphery 140a and the outer periphery 140b of the enlarged diameter portion 14.
Therefore, since the width W2 of the base 150 of the obtained plate-like member 15 does not change greatly from the width ha of the base 140 of the enlarged diameter portion 14, a ring-shaped plate having a radial width necessary for punching the clutch plate 16 The shaped member 15 can be obtained stably.

筒状の周壁部１３ｂを有する基材は、周壁部１３ｂの他端側が底部１３ａにより封止された有底円筒形状の基材１３であり、
拡径部形成工程の前に、円形の板状部材１１の絞りにより有底円筒形状の基材１３を形成する絞り工程を備える構成のクラッチ板の製造方法とした。 The base material having the cylindrical peripheral wall portion 13b is a bottomed cylindrical base material 13 in which the other end side of the peripheral wall portion 13b is sealed by the bottom portion 13a.
Prior to the enlarged diameter portion forming step, a clutch plate manufacturing method including a drawing step of forming the bottomed cylindrical base material 13 by drawing the circular plate-like member 11 was used.

実施の形態にかかるクラッチ板１６の製造方法では、新たな基材１３が得られる毎に、周壁部１３ｂの高さが低くなる。
基材１３が、筒状の周壁部１３ｂのみから構成される場合には、周壁部１３ｂの高さが低くなるに従って基材１３の剛性強度が低下するので、周壁部１３ｂの長さが拡径部１４を形成可能な長さであっても、基材１３から得られる拡径部１４や板状部材１５の形状にバラツキが生じる虞がある。
基材１３が、周壁部１３ｂの他端側が底部１３ａにより封止された有底円筒形状の基材であると、周壁部１３ｂの高さが低くなっても、周壁部１３ｂの剛性強度が、底部１３ａにより確保されるので、基材１３から得られる拡径部１４や板状部材１５の形状のバラツキを抑えることができる。
これにより、周壁部１３ｂが拡径部１４を形成できない長さとなるまで、基材をクラッチ板１６の作成に用いることができるので、基材１３における廃棄される部分を少なくすることができ、リング状のクラッチ板１６を歩留まり良く製造できる。 In the manufacturing method of the clutch plate 16 according to the embodiment, the height of the peripheral wall portion 13b is lowered each time a new base material 13 is obtained.
When the base material 13 is composed only of the cylindrical peripheral wall portion 13b, the rigidity strength of the base material 13 decreases as the height of the peripheral wall portion 13b decreases, so the length of the peripheral wall portion 13b increases in diameter. Even if the length of the portion 14 can be formed, there is a possibility that the shapes of the enlarged diameter portion 14 and the plate-like member 15 obtained from the base material 13 may vary.
When the base material 13 is a bottomed cylindrical base material in which the other end side of the peripheral wall portion 13b is sealed by the bottom portion 13a, the rigidity strength of the peripheral wall portion 13b is reduced even if the height of the peripheral wall portion 13b is reduced. Since it is ensured by the bottom portion 13a, variations in the shapes of the enlarged diameter portion 14 and the plate-like member 15 obtained from the base material 13 can be suppressed.
Thereby, since the base material can be used for the production of the clutch plate 16 until the peripheral wall portion 13b has a length that cannot form the enlarged diameter portion 14, the discarded portion of the base material 13 can be reduced. Can be manufactured with good yield.

絞り工程の前に、矩形形状の金属板１０の打ち抜きにより、円形の板状部材１１を得る円形打ち抜き工程をさらに備える構成のクラッチ板の製造方法とした。   The clutch plate manufacturing method further includes a circular punching step for obtaining a circular plate-like member 11 by punching the rectangular metal plate 10 before the drawing step.

基材１３がリング状の周壁部１３ｂのみから構成される場合には、基材１３における最終的に廃棄される部分を最小に抑えることができるが、リング状の周壁部１３ｂのみからなる基材１３は、金属板１０に比べて調達コストが高くなってしまう。
矩形形状の金属板１０の打ち抜きにより円形の板状部材１１を作成し、この板状部材１１の絞りにより、有底円筒形状の基材１３を作成すると、金属板１０における板状部材１１の周り（残材１２）は、クラッチ板１６の作成に用いられずに廃棄されることになる。
しかし、金属板１０の調達コストは、廃棄される残材１２や、新たに加わる円形打ち抜き工程と絞り工程のコストを加味しても、リング状の周壁部１３ｂのみからなる基材の調達コストよりも易くなるので、全体としてよりより安価に、クラッチ板１６を作成することができる。 In the case where the base material 13 is composed only of the ring-shaped peripheral wall portion 13b, the portion of the base material 13 that is finally discarded can be minimized, but the base material composed of only the ring-shaped peripheral wall portion 13b. No. 13 has a higher procurement cost than the metal plate 10.
When a circular plate-like member 11 is created by punching a rectangular metal plate 10 and a bottomed cylindrical base material 13 is created by drawing the plate-like member 11, the periphery of the plate-like member 11 in the metal plate 10 is obtained. The (remaining material 12) is discarded without being used for making the clutch plate 16.
However, the procurement cost of the metal plate 10 is more than the procurement cost of the base material composed only of the ring-shaped peripheral wall portion 13b, even if the cost of the remaining material 12 to be discarded and the newly added circular punching process and drawing process are taken into account. Therefore, the clutch plate 16 can be produced at a lower cost as a whole.

ここで、分割工程では、周壁部１３ｂにおける拡径部１４の基点１３ｂ２（周壁部１３ｂにおける折れ曲がりの基点）を、基材１３の底部１３ａに対して水平な水平線Ｚ（図３（ｂ）参照）に沿って切断する構成とした。   Here, in the dividing step, a base point 13b2 of the enlarged diameter portion 14 in the peripheral wall portion 13b (a base point of bending in the peripheral wall portion 13b) is set to a horizontal line Z that is horizontal to the bottom portion 13a of the base member 13 (see FIG. 3B). It was set as the structure cut | disconnected along.

拡径部１４が形成された有底円筒形状の基材１３’では、周壁部１３ｂの拡径部１４側（拡径部１４の基点１３ｂ２側）の剛性強度が、拡径部１４により高められている。
そのため、周壁部１３ｂにおける拡径部１４の基点１３ｂ２で、周壁部１３ｂを切断することで、周壁部１３ｂの拡径部１４側が、切断時に作用する応力により変形することを好適に防止できる。
これにより、新たに得られる基材１３Ａ・・・１３Ｘにおいて、当該基材１３Ａ・・・の周壁部１３ｂを軸方向から見たときの形状が、拡径部１４が形成される前の基材１３の周壁部１３ｂと同じ形状（円形）となる。
よって、新たに得られる基材１３Ａ・・・１３Ｘ−１から作成される拡径部１４、リング状の板状部材１５の軸方向から見た形状が、最初の基材１３から作成される拡径部１４、リング状の板状部材１５と略同じ形状で形成される。よって、ひとつの基材１３から得られる拡径部１４や板状部材１５の形状のバラツキが少ないので、最終的に得られるクラッチ板１６を歩留まり良く作成できる。 In the bottomed cylindrical base material 13 ′ in which the enlarged diameter portion 14 is formed, the rigidity of the peripheral wall portion 13 b on the enlarged diameter portion 14 side (the base point 13 b 2 side of the enlarged diameter portion 14) is increased by the enlarged diameter portion 14. ing.
For this reason, by cutting the peripheral wall portion 13b at the base point 13b2 of the enlarged diameter portion 14 in the peripheral wall portion 13b, it is possible to suitably prevent the enlarged diameter portion 14 side of the peripheral wall portion 13b from being deformed by the stress acting at the time of cutting.
Thereby, in base material 13A ... 13X newly obtained, when the peripheral wall part 13b of the said base material 13A ... is seen from an axial direction, the base material before the enlarged diameter part 14 is formed 13 has the same shape (circular shape) as the peripheral wall portion 13b.
Therefore, the shape seen from the axial direction of the enlarged diameter portion 14 and the ring-shaped plate-like member 15 created from the newly obtained base material 13A... 13X-1 is created from the first base material 13. The diameter portion 14 and the ring-shaped plate member 15 are formed in substantially the same shape. Therefore, since the variation of the shape of the enlarged diameter part 14 obtained from the one base material 13 or the plate-shaped member 15 is few, the clutch board 16 finally obtained can be produced with a sufficient yield.

なお、前記した実施の形態では、内周側に歯部１６１を有するクラッチ板１６の場合を例に挙げて説明をしたが、前記した製造方法は、外周側に歯部を有するクラッチ板や、内周側と外周側に歯部を有するクラッチ板の製造にも好適に適用可能である。   In the above-described embodiment, the case of the clutch plate 16 having the tooth portion 161 on the inner peripheral side has been described as an example. However, the manufacturing method described above includes a clutch plate having a tooth portion on the outer peripheral side, The present invention can also be suitably applied to manufacture of a clutch plate having teeth on the inner peripheral side and the outer peripheral side.

さらに、前記した実施の形態では、分割工程で得られた拡径部１４のコイニングにより、リング状の板状部材１５を作成する場合を例示したが、プレスにより、リング状の板状部材１５を作成するようにしても良い。
かかる場合、リング状の基部１４０が中心線Ｘの軸方向に大きく圧縮されない圧力でプレスを行うことで、コイニングの場合と同様に、最終的に得られる板状部材１５の形状のバラツキを少なくできる。 Furthermore, in the above-described embodiment, the case where the ring-shaped plate-like member 15 is created by coining the enlarged-diameter portion 14 obtained in the dividing step is illustrated, but the ring-like plate-like member 15 is formed by pressing. You may make it create.
In such a case, the ring-shaped base 140 is pressed with a pressure that is not greatly compressed in the axial direction of the center line X, so that the variation in the shape of the finally obtained plate-like member 15 can be reduced as in the case of coining. .

１０ 金属板
１１ 板状部材
１２ 残材
１２ａ 開口
１３ 基材
１３ｂ１ 端部
１３ｂ２ 基点
１３、１３Ａ、・・・、１３Ｘ 基材
１３ａ 底部
１３ｂ 周壁部
１４ 拡径部
１４０ 基部
１４０ａ 内周
１４０ｂ 外周
１５ 板状部材
１５０ 基部
１５０ａ 内周
１５０ｂ 外周
１６ クラッチ板
１６０ 基部
１６１ 歯部
１７ 残材
Ｋｐ クラッチ板
Ｋｐ’ クラッチ板
Ｐ１ 金属板
Ｘ 中心線
Ｚ 水平線 DESCRIPTION OF SYMBOLS 10 Metal plate 11 Plate-shaped member 12 Remaining material 12a Opening 13 Base material 13b1 End part 13b2 Base point 13, 13A, ..., 13X Base material 13a Bottom part 13b Peripheral wall part 14 Expanded part 140 Base part 140a Inner circumference 140b Outer circumference 15 Plate shape Member 150 Base 150a Inner circumference 150b Outer circumference 16 Clutch plate 160 Base portion 161 Teeth portion 17 Remaining material Kp Clutch plate Kp 'Clutch plate P1 Metal plate X Center line Z Horizontal line

Claims (4)

筒状基材の長手方向における一端側に、前記一端に向かうにつれて拡径する拡径部を形成する拡径部形成工程と、
前記拡径部が形成された前記筒状基材を、前記拡径部と、前記拡径部が除かれた新たな筒状基材とに分割する分割工程と、
前記分割工程で得られた拡径部のプレスにより、リング状の板状部材を作成するプレス工程と、
前記リング状の板状部材の打ち抜きにより、リング状のクラッチ板を得る打ち抜き工程と、を備え、
前記分割工程で得られた新たな筒状基材の前記長手方向の長さが、前記拡径部形成工程において拡径部を形成可能な長さである間は、前記分割工程で得られた新たな筒状基材を用いて、前記拡径部形成工程と、前記分割工程と、前記プレス工程と、前記打ち抜き工程とを実行することを特徴とするクラッチ板の製造方法。 On the one end side in the longitudinal direction of the cylindrical base material, an enlarged diameter portion forming step for forming an enlarged diameter portion that expands toward the one end, and
A dividing step of dividing the cylindrical base material formed with the enlarged diameter portion into the enlarged diameter portion and a new cylindrical base material from which the enlarged diameter portion is removed;
A press step for creating a ring-shaped plate-like member by pressing the expanded portion obtained in the dividing step;
A punching step of obtaining a ring-shaped clutch plate by punching the ring-shaped plate member,
While the length in the longitudinal direction of the new cylindrical base material obtained in the dividing step is a length capable of forming the enlarged diameter portion in the enlarged diameter portion forming step, it was obtained in the dividing step. A method for manufacturing a clutch plate, comprising performing the enlarged diameter portion forming step, the dividing step, the pressing step, and the punching step using a new cylindrical base material. 前記筒状基材は、前記長手方向における他端が封止された有底の筒状基材であり、
前記拡径部形成工程の前に、円形の板状部材の絞りにより、前記有底の筒状基材を形成する絞り工程を、備えることを特徴とする請求項１に記載のクラッチ板の製造方法。 The cylindrical base material is a bottomed cylindrical base material whose other end in the longitudinal direction is sealed,
2. The clutch plate manufacturing according to claim 1, further comprising a drawing step of forming the bottomed cylindrical base material by drawing a circular plate-like member before the enlarged-diameter portion forming step. Method. 前記絞り工程の前に、金属板の打ち抜きにより、前記円形の板状部材を得る円形打ち抜き工程をさらに備えることを特徴とする請求項２に記載のクラッチ板の製造方法。   The method of manufacturing a clutch plate according to claim 2, further comprising a circular punching step of obtaining the circular plate-like member by punching a metal plate before the drawing step. 前記分割工程では、前記拡径部が形成された前記筒状基材を、前記拡径部の基端で切断して、前記拡径部と前記拡径部が除かれた新たな筒状基材とに分割することを特徴とする請求項１から請求項３の何れか一項に記載のクラッチ板の製造方法。   In the dividing step, the tubular base material on which the enlarged-diameter portion is formed is cut at a proximal end of the enlarged-diameter portion, and a new tubular base in which the enlarged-diameter portion and the enlarged-diameter portion are removed. The method for manufacturing a clutch plate according to any one of claims 1 to 3, wherein the clutch plate is divided into materials.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392564A (en) * 1965-09-03 1968-07-16 Nippon Kokan Kk Process and apparatus for the manufacture of circular flanges
JPS4931624B1 (en) * 1970-10-08 1974-08-23
JPS55142162A (en) * 1979-04-14 1980-11-06 Dana Corp Manufacture of gasket piece with flange
JPH05318010A (en) * 1992-05-12 1993-12-03 Honda Motor Co Ltd Manufacture of friction disk of multiple disk friction clutch
JP2001295930A (en) * 2000-04-14 2001-10-26 Taiho Kogyo Co Ltd Shim for gasket and method of manufacturing the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3446041B2 (en) * 1998-07-24 2003-09-16 サンコール株式会社 Method for manufacturing ring-shaped plate member
JP2002153932A (en) * 2000-11-20 2002-05-28 Nsk Warner Kk Method and apparatus for manufacturing friction plate
US7178375B2 (en) * 2004-10-26 2007-02-20 Means Industries, Inc. Apparatus and method for stamping and deburring clutch discs
JP5101028B2 (en) * 2006-03-24 2012-12-19 日本発條株式会社 Belleville spring manufacturing method and clutch device
JP5197984B2 (en) * 2007-04-03 2013-05-15 日本発條株式会社 Belleville spring manufacturing method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392564A (en) * 1965-09-03 1968-07-16 Nippon Kokan Kk Process and apparatus for the manufacture of circular flanges
JPS4931624B1 (en) * 1970-10-08 1974-08-23
JPS55142162A (en) * 1979-04-14 1980-11-06 Dana Corp Manufacture of gasket piece with flange
JPH05318010A (en) * 1992-05-12 1993-12-03 Honda Motor Co Ltd Manufacture of friction disk of multiple disk friction clutch
JP2001295930A (en) * 2000-04-14 2001-10-26 Taiho Kogyo Co Ltd Shim for gasket and method of manufacturing the same

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