JP2509419B2 - Method for manufacturing mold product having voids in an eccentric state - Google Patents
Method for manufacturing mold product having voids in an eccentric stateInfo
- Publication number
- JP2509419B2 JP2509419B2 JP16293092A JP16293092A JP2509419B2 JP 2509419 B2 JP2509419 B2 JP 2509419B2 JP 16293092 A JP16293092 A JP 16293092A JP 16293092 A JP16293092 A JP 16293092A JP 2509419 B2 JP2509419 B2 JP 2509419B2
- Authority
- JP
- Japan
- Prior art keywords
- product
- void
- die
- processed product
- molding
- 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.)
- Expired - Lifetime
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- Extrusion Of Metal (AREA)
Description
【0001】[0001]
【産業上の利用分野】この発明は、シリンダー用エンド
カバー等の製造に用いられる、空隙部を偏心状態に有す
るアルミニウム等の金属製型材品の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a metal mold material product such as aluminum having an eccentricity in a void portion, which is used for manufacturing a cylinder end cover or the like.
【0002】[0002]
【従来の技術と課題】型材品の製造には、各種有利性を
発揮しうる押出法が好んで用いられることが多い。2. Description of the Related Art Extrusion methods, which are capable of exhibiting various advantages, are often used in the production of die materials.
【0003】しかるに、例えば、第3図(イ)に示され
るように、横断面外周形状が方形状をなし、その一辺部
に偏って該一辺部に沿う横長の中空状空隙部(1)を有
する型材品(2)を押出成形した場合、第4図(ハ)に
示されるように、一点鎖線にて示すような適正な位置に
空隙部(1)が形成されず、実線にて示すように該位置
からその一辺部に近付いた不適正な位置に空隙部(51)
が形成されてしまい、予定とは異なった不適正な型材品
(52)が成形されてしまうという問題があった。これ
は、押出用ダイスとして、一般に、第4図(イ)に示さ
れるような、成形凸用部(53)が成形孔(54)内に偏心
状態に配置された雌雄組み合わせダイス(55)を用いる
ために、押出中に、成形用凸部(53)が押出材料からの
圧力を、第4図(ロ)矢印に示されるように不均等に受
け、該成形用凸部(53)に撓みを生じてしまうことによ
るものである。However, for example, as shown in FIG. 3 (a), the outer peripheral shape of the transverse cross section is a square shape, and a horizontally elongated hollow void portion (1) along one side portion is biased to one side portion thereof. When the molded product (2) having the same is extruded, as shown in FIG. 4 (c), the void (1) is not formed at the proper position as shown by the alternate long and short dash line, but as shown by the solid line. At the improper position near this side from that position, the void (51)
However, there is a problem in that an unsuitable mold material product (52) different from the intended one is formed due to the formation of the mold. As an extrusion die, this is generally a male-male combination die (55) in which the molding convex portion (53) is eccentrically arranged in the molding hole (54) as shown in FIG. 4 (a). For use, during extrusion, the molding projection (53) receives pressure from the extruded material unevenly as shown by the arrow in Fig. 4 (b), and the molding projection (53) bends. Is caused by.
【0004】また、例えば、第3図(ロ)に示されるよ
うに、横断面外周形状が方形状をなし、その一辺部に偏
って該一辺部に沿って延び一方の側壁に開口する横長の
切欠き状空隙部(3)を有する型材品(4)を押出成形
する場合、第5図(ロ)に一点鎖線にて示すように適正
な形状に空隙部(3)が形成されず、実線にて示すよう
に内方先端側が該一辺部に近付いた歪んだ不適正な形状
の空隙部(61)に形成されてしまい、予定とは異なった
不適正な型材品(62)が成形されてしまうという問題が
あった。これは、押出用ダイスとして、一般に、第5図
(イ)に示されるような、切欠き状空隙部(61)を成形
する片持ち突出状のベアリング部(63)を有する平ダイ
ス(64)を用いるために、押出中に、矢印にて示される
ように片持ち突出状のベアリング部(63)が押出材料か
らの圧力を不均等に受け、該片持ち突出状のベアリング
部(63)に撓みを生じてしまうことによるものである。Also, for example, as shown in FIG. 3 (b), the outer peripheral shape of the transverse cross section is a square shape, and the laterally elongated shape is biased toward one side portion and extends along the one side portion to open to one side wall. When a mold material product (4) having a notch-shaped void (3) is extrusion-molded, the void (3) is not formed in an appropriate shape as shown by the alternate long and short dash line in FIG. As shown in, the inner tip side is formed in a distorted and improperly shaped void (61) near the one side, and an improper mold material product (62) different from the expected is formed. There was a problem of being lost. As a die for extrusion, a flat die (64) having a cantilevered protruding bearing portion (63) for molding a notched void portion (61) is generally used as shown in FIG. 5 (a). In order to use, the cantilevered projecting bearing portion (63) receives the pressure from the extruded material unevenly as shown by the arrow during extrusion, and the cantilevered projecting bearing portion (63) This is due to bending.
【0005】この発明は、上記のような従来の欠点を解
消し、空隙部を偏心状態に有する型材品を押出加工法を
用いて精度良く製造することができる方法を提供するこ
とを目的とする。An object of the present invention is to solve the above-mentioned conventional drawbacks and to provide a method capable of accurately manufacturing a mold product having an eccentricity in a void portion by using an extrusion processing method. .
【0006】[0006]
【課題を解決するための手段】上記目的において、この
発明は、空隙部を挾んで厚肉部とは反対側の薄肉部に厚
肉部との肉厚差を小さくする余肉部が設けられた中間加
工品を一体押出成形した後、この中間加工品の余肉部を
除去することを特徴とする、空隙部を偏心状態に有する
型材品の製造方法を要旨とする。In order to achieve the above object, the present invention is provided with a surplus portion for reducing the difference in thickness between the thick portion and the thin portion on the side opposite to the thick portion by interposing the void portion. Another feature of the present invention is to provide a method for manufacturing a die material product having an eccentricity in a void portion, which comprises integrally extruding an intermediate processed product and then removing a surplus portion of the intermediate processed product.
【0007】なお、余肉部の肉厚は、空隙部を挾む両側
の肉厚差が3倍以内になるように設定されるのが好まし
い。The thickness of the extra thickness portion is preferably set so that the difference in thickness between the two sides of the void portion is within 3 times.
【0008】[0008]
【作用】上記方法では、押出成形により、まず、最終型
材品の空隙部を挾んで厚肉部とは反対側の薄肉部に厚肉
部との肉厚差を小さくする余肉部を有する中間加工品を
加工するものとなされていることにより、該中間加工品
の押出において、空隙部を成形するダイス部分が押出材
料の圧力によって変形するのが抑制され、そのため、適
正な配置状態で適正な形状の空隙部が形成される。従っ
て、あとは上記のようにこの中間加工品の余肉部を除去
することにより、予定どおりの精度の高い型材品が得ら
れる。In the above-mentioned method, first, by extrusion molding, an intermediate portion having a thin portion on the side opposite to the thick portion to reduce the difference in thickness from the thick portion by interposing the void portion of the final mold product By processing the processed product, in the extrusion of the intermediate processed product, it is possible to prevent the die portion forming the void from being deformed by the pressure of the extruded material. A shaped void is formed. Therefore, after that, by removing the surplus portion of the intermediate processed product as described above, a highly accurate mold material product can be obtained as planned.
【0009】[0009]
【実施例】次に、第3図(イ)に示されるような、横断
面外周形状が方形状をなし、その一辺部に偏って該一辺
部に沿う横長の中空状空隙部(1)を有する型材品
(2)の製造に適用した実施例と、第3図(ロ)に示さ
れるような、横断面外周形状が方形状をなし、その一辺
部に偏って該一辺部に沿って延び一方の側壁に開口する
横長の切欠き状空隙部(3)を有する型材品(4)の製
造に適用した実施例とについて説明する。EXAMPLE Next, as shown in FIG. 3 (a), the outer peripheral shape of the lateral cross section is a square shape, and a horizontally long hollow void portion (1) along one side is biased to one side. The embodiment applied to the production of the mold material product (2) and the outer peripheral shape of the transverse cross section have a square shape as shown in FIG. 3 (B), and it is biased to one side portion and extends along the one side portion. An example applied to the manufacture of a mold material product (4) having a horizontally elongated notch-shaped void portion (3) opening to one side wall will be described.
【0010】第3図(イ)に示される型材品(2)の製
造においては、まず、第1図(イ−1)に示されるよう
な中間加工品(6)を、第1図(イ−2)に示されるよ
うな押出用ダイス(7)を用いて押出成形する。ダイス
(7)は、中空状空隙部(1)を成形する成形用凸部
(8)を有する雄型(9)と、中間加工品(6)の外周
部を成形する成形孔(10)を有する雌型(11)とを組み
合わせた雌雄組み合わせダイスである。In manufacturing the mold product (2) shown in FIG. 3 (a), first, the intermediate processed product (6) as shown in FIG. -2) Extrusion molding is performed using an extrusion die (7) as shown in FIG. The die (7) has a male die (9) having a molding convex portion (8) for molding the hollow space (1) and a molding hole (10) for molding the outer peripheral portion of the intermediate processed product (6). It is a male and female combination die that is combined with a female mold (11).
【0011】中間加工品(6)は、製造しようとする型
材品(2)の中空状空隙部(1)を挾んで厚肉部(12)
側とは反対の側の薄肉部(13)に連接して余肉部(14)
を一体に有するものとする。The intermediate processed product (6) sandwiches the hollow space (1) of the mold product (2) to be manufactured, and has a thick part (12).
The surplus portion (14) is connected to the thin portion (13) on the side opposite to the side.
Shall be integrally provided.
【0012】この余肉部(14)は、厚肉部(12)側の肉
厚と薄肉部(13)側の肉厚との肉厚差が3倍以下になる
ようなものに設定する。3倍を越えると、ダイス(7)
の成形凸部(8)が押出材料の圧力にて撓みを生じ、適
正な位置に中空状空隙部(1)が形成されにくくなるか
らである。なお、余肉部(14)の幅は、中空状の空隙部
(1)の幅におおよそ対応するものに設定すればよい。The extra thickness portion (14) is set so that the thickness difference between the thickness on the thick portion (12) side and the thickness on the thin portion (13) side is three times or less. Dice (7) when it exceeds 3 times
This is because the molding convex portion (8) is bent by the pressure of the extruded material, and it becomes difficult to form the hollow void portion (1) at an appropriate position. The width of the extra thickness portion (14) may be set to approximately correspond to the width of the hollow space (1).
【0013】この中間加工品(6)の押出は、アルミニ
ウムないしはその合金製の押出材料、例えばアルミニウ
ムビレットを用いて行う。この押出中、余肉部(14)も
併せて一体押出成形されるため、成形凸部(8)と成形
孔(9)とに囲まれた成形隙間(15)を通過する押出材
料の圧力が、成形凸部(8)を挾む厚肉部(12)成形側
と薄肉部(13)成形側とから均等化して成形凸部(8)
に作用し、そのため、成形凸部(8)の撓みが抑制され
て、予定どおりの位置に予定どおりの形状の中空状空隙
部(1)を有する中間加工品(6)が押出成形される。The extrusion of the intermediate processed product (6) is performed using an extruded material made of aluminum or its alloy, for example, an aluminum billet. During this extrusion, since the excess thickness portion (14) is also integrally extruded, the pressure of the extruded material passing through the molding gap (15) surrounded by the molding convex portion (8) and the molding hole (9) is A molding convex portion (8) that is equalized from the molding side of the thick portion (12) sandwiching the molding convex portion (8) and the molding side of the thin portion (13)
Therefore, the bending of the forming convex portion (8) is suppressed, and the intermediate processed product (6) having the hollow void portion (1) having the predetermined shape at the predetermined position is extruded.
【0014】次いで、この中間加工品(6)に対し、第
1図(ロ)に示されるように、余肉部(14)と隣接して
これに沿って型材品(2)の上面に細溝(17)(17)を
形成する。なお、この細溝(17)(17)は押出により成
形してもよい。Next, as shown in FIG. 1 (b), the intermediate processed product (6) is adjacent to the extra thickness part (14) and along the same, a thin line is formed on the upper surface of the mold product (2). Grooves (17) (17) are formed. The narrow grooves (17) (17) may be formed by extrusion.
【0015】そして、第1図(ハ)に示されるように、
余肉部(14)を除去する。除去は、切削等によって行え
ばよい。切削等による場合は、上記のように、余肉部
(14)の両わきに細溝(17)(17)が形成されているた
め、切削による傷が、細溝(17)(17)を越えて外方に
及ぶことがなく、仕上がり状態の良好な型材品(2)が
得られる。Then, as shown in FIG. 1 (c),
The extra portion (14) is removed. The removal may be performed by cutting or the like. In the case of cutting, etc., since the fine grooves (17) (17) are formed on both sides of the extra thickness portion (14) as described above, scratches due to cutting will cause the fine grooves (17) (17) to be formed. A finished product (2) having a good finished state can be obtained without exceeding the outside.
【0016】以上のようにして、適正な形状の中空状空
隙部(2)を一辺部に偏って適正な位置に有する型材品
(1)が製造される。In the manner as described above, the molding material product (1) having the proper shape of the hollow space (2) at one side portion and at the proper position is manufactured.
【0017】第3図(ロ)に示される型材品(4)の製
造においては、まず、第2図(イ−1)に示されるよう
な中間加工品(21)を、第2図(イ−2)に示されるよ
うな押出用ダイス(22)を用いて押出成形する。ダイス
(22)は、成形孔(23)に、切欠き状空隙部(3)を成
形する片持ち突出状のベアリング部(23a )を有する平
ダイスである。In the production of the mold product (4) shown in FIG. 3 (b), first, the intermediate processed product (21) as shown in FIG. -2) Extrusion molding is carried out using an extrusion die (22). The die (22) is a flat die having a cantilevered protruding bearing portion (23a) for forming the notched void portion (3) in the forming hole (23).
【0018】中間加工品(21)は、製造しようとする型
材品(4)の切欠き状空隙部(3)を挾んで厚肉部(2
4)側とは反対の側の薄肉部(25)に連接して余肉部(2
6)を一体に有するものとする。The intermediate processed product (21) sandwiches the notched void (3) of the mold product (4) to be manufactured and sandwiches the thick part (2).
4) side is connected to the thin part (25) on the side opposite to the surplus part (2
6) shall be integrated.
【0019】この余肉部(26)は、厚肉部(24)側の肉
厚と薄肉部(25)側の肉厚との肉厚差が3倍以下になる
ようなものに設定する。3倍を越えると、ダイス(22)
の片持ち突出状のベアリング部(23a )に押出材料の圧
力にて撓みを生じ、適正な位置に切欠き状空隙部(3)
が形成されにくくなるからである。なお、余肉部(14)
の幅は、切欠き状空隙部(3)の幅におおよそ対応する
ものに設定すればよい。The extra thickness portion (26) is set so that the thickness difference between the thickness on the thick portion (24) side and the thickness on the thin portion (25) side is three times or less. Dice (22) when it exceeds 3 times
The cantilevered protruding bearing part (23a) is bent by the pressure of the extruded material, and the notch-shaped void part (3) is formed at an appropriate position.
Is less likely to be formed. The extra part (14)
The width may be set so as to roughly correspond to the width of the notch-shaped void (3).
【0020】この中間加工品(21)の押出中、余肉部
(26)も併せて一体押出成形するため、成形孔(23)を
通過する押出材料の圧力が、片持ち突出状ベアリング部
(23a)を挾む厚肉部(24)成形側と薄肉部(25)成形
側とから均等化して片持ち突出状ベアリング部(23a )
に作用し、そのため、同ベアリング部(23a )の撓みが
抑制されて、予定どおりの位置に予定どおりの形状の切
欠き状空隙部(3)を有する中間加工品(21)が押出成
形される。During the extrusion of the intermediate processed product (21), since the excess thickness portion (26) is integrally extruded together, the pressure of the extruded material passing through the forming hole (23) causes the cantilevered protruding bearing portion ( 23a) The thick-walled part (24) forming side and the thin-walled part (25) equalizing the molding side, the cantilevered protruding bearing part (23a)
As a result, the bending of the bearing portion (23a) is suppressed, and the intermediate processed product (21) having the notched void portion (3) of the predetermined shape at the predetermined position is extruded. .
【0021】次いで、この中間加工品(21)に対し、第
2図(ロ)に示されるように、余肉部(26)と隣接して
これに沿って型材品(4)の上面に細溝(27)を形成す
る。なお、この細溝(17)は上記と同様に押出により成
形してもよい。Next, as shown in FIG. 2 (b), the intermediate processed product (21) is adjacent to the extra thickness part (26) and along the same, a thin line is formed on the upper surface of the die material product (4). Form a groove (27). The narrow groove (17) may be formed by extrusion similarly to the above.
【0022】そして、第2図(ハ)に示されるように、
余肉部(14)を切削等により除去する。以上のようにし
て、適正な形状の切欠き状空隙部(3)を一辺部に偏っ
て適正な位置に有する型材品(4)が製造される。Then, as shown in FIG.
The surplus portion (14) is removed by cutting or the like. As described above, the mold material product (4) having the notched void portion (3) of a proper shape at one side portion at a proper position is manufactured.
【0023】なお、本発明方法は、空隙部を偏心状態に
有して、該空隙部を挾んで一方の側に厚肉部を、他方の
側に薄肉部を有する各種形状の型材品の製造に広く適用
されるものであることはいうまでもない。According to the method of the present invention, a mold material having various shapes having a void portion in an eccentric state and having a thick portion on one side and a thin portion on the other side across the void portion is manufactured. Needless to say, it is widely applied to.
【0024】[0024]
【発明の効果】上述の次第で、この発明の空隙部を偏心
状態に有する型材品の製造方法は、空隙部を挾んで厚肉
部とは反対側の薄肉部に厚肉部との肉厚差を小さくする
余肉部を有する中間加工品を一体押出成形した後、この
中間加工品の余肉部を除去するものであるから、このよ
うな型材品を押出加工法を用いて精度良く製造すること
ができる。As described above, according to the method for manufacturing a mold product having the void portion in the eccentric state according to the present invention, the thickness of the thin portion on the opposite side of the thick portion from the thick portion and the thick portion Since an intermediate processed product having a surplus part that reduces the difference is integrally extruded and then the surplus part of the intermediate processed product is removed, such a molded product is manufactured with high precision using an extrusion method. can do.
【図1】型材品製造方法の一実施例を示すもので、図
(イ−1)は中間加工品の斜視図、図(イ−2)はダイ
スの断面図、図(ロ)は細溝を形成した中間加工品の斜
視図、図(ハ)は型材品の斜視図である。FIG. 1 shows an embodiment of a method for manufacturing a die material product, in which FIG. (A-1) is a perspective view of an intermediate processed product, FIG. (A-2) is a sectional view of a die, and (B) is a narrow groove. FIG. 3C is a perspective view of an intermediate processed product in which is formed, and FIG.
【図2】型材品製造方法の他の実施例を示すもので、図
(イ−1)は中間加工品の斜視図、図(イ−2)はダイ
スの断面図、図(ロ)は細溝を形成した中間加工品の斜
視図、図(ハ)は型材品の斜視図である。2A and 2B show another embodiment of the method for manufacturing a die material product, in which FIG. 1A-1 is a perspective view of an intermediate processed product, FIG. 2A-2 is a sectional view of a die, and FIG. FIG. 3 is a perspective view of an intermediate processed product in which a groove is formed, and FIG.
【図3】図(イ)は中空状空隙部を偏心状態に有する型
材品の斜視図、図(ロ)は切欠き状空隙部を偏心状態に
有する型材品の斜視図である。3A is a perspective view of a mold product having a hollow void portion in an eccentric state, and FIG. 3B is a perspective view of a mold product having a notched void portion in an eccentric state.
【図4】従来例を示すもので、図(イ)はダイスの横断
面図、図(ロ)は同ダイスの立て断面図、図(ハ)は得
られた型材の横断面図である。FIG. 4 shows a conventional example, in which FIG. 4A is a cross-sectional view of a die, FIG. 4B is a vertical cross-sectional view of the die, and FIG. 4C is a cross-sectional view of the obtained die material.
【図5】従来例を示すもので、図(イ)はダイスの横断
面図、図(ロ)は得られた型材の横断面図である。5A and 5B show a conventional example, in which FIG. 5A is a cross-sectional view of a die, and FIG. 5B is a cross-sectional view of the obtained die material.
1…中空状空隙部 2…型材品 3…切欠き状空隙部 4…型材品 6…中間加工品 12…厚肉部 13…薄肉部 14…余肉部 21…中間加工品 24…厚肉部 25…薄肉部 26…余肉部 DESCRIPTION OF SYMBOLS 1 ... Hollow cavity 2 ... Mold material 3 ... Notch-shaped cavity 4 ... Mold material 6 ... Intermediate processed product 12 ... Thick part 13 ... Thin part 14 ... Extra thickness 21 ... Intermediate processed product 24 ... Thick part 25 ... Thin part 26 ... Extra part
Claims (1)
部に厚肉部との肉厚差を小さくする余肉部が設けられた
中間加工品を一体押出成形した後、この中間加工品の余
肉部を除去することを特徴とする、空隙部を偏心状態に
有する型材品の製造方法。1. An integrally processed extruded product after an intermediate processed product in which a thin portion on the side opposite to the thick portion is provided with a surplus portion for reducing the thickness difference from the thick portion A method for manufacturing a die material product having an eccentricity of a void, characterized by removing a surplus portion of an intermediate processed product.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16293092A JP2509419B2 (en) | 1992-06-22 | 1992-06-22 | Method for manufacturing mold product having voids in an eccentric state |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16293092A JP2509419B2 (en) | 1992-06-22 | 1992-06-22 | Method for manufacturing mold product having voids in an eccentric state |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06531A JPH06531A (en) | 1994-01-11 |
JP2509419B2 true JP2509419B2 (en) | 1996-06-19 |
Family
ID=15763940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16293092A Expired - Lifetime JP2509419B2 (en) | 1992-06-22 | 1992-06-22 | Method for manufacturing mold product having voids in an eccentric state |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2509419B2 (en) |
-
1992
- 1992-06-22 JP JP16293092A patent/JP2509419B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH06531A (en) | 1994-01-11 |
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