JPH0437411A - Dies for twist-extruding twisted material - Google Patents

Dies for twist-extruding twisted material

Info

Publication number
JPH0437411A
JPH0437411A JP14518390A JP14518390A JPH0437411A JP H0437411 A JPH0437411 A JP H0437411A JP 14518390 A JP14518390 A JP 14518390A JP 14518390 A JP14518390 A JP 14518390A JP H0437411 A JPH0437411 A JP H0437411A
Authority
JP
Japan
Prior art keywords
die
spiral
shape
twisted
lead angle
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
Application number
JP14518390A
Other languages
Japanese (ja)
Other versions
JPH0679741B2 (en
Inventor
Mitsuhiro Kitano
北野 光宏
Kunio Okubo
大久保 国男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Altemira Co Ltd
Original Assignee
Showa Aluminum Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP2145183A priority Critical patent/JPH0679741B2/en
Publication of JPH0437411A publication Critical patent/JPH0437411A/en
Publication of JPH0679741B2 publication Critical patent/JPH0679741B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Extrusion Of Metal (AREA)

Abstract

PURPOSE:To obtain twisted material which has the spiral type hollowed part in it spiral type projecting part by combinating the female dies providing the extruding hole of the sectional area shape corresponding to the outer circumferential shape of the twisted material, and the male dies having the projecting part for forming of the section area corresponding to the shape of hollowed part in the material to be twisted. CONSTITUTION:Because the dies 31 for twist extruding is formed by combining the die 5 providing the extruding hole 10 having the sectional area and the bearing part of the lead angle corresponding to the outer circumferential shape of the twisted material 1, with the male die 7 having the projecting part for forming 22 of the sectional area shape corresponding to the shape of the hollowed part 4 in the spiral projecting line part, and its projecting part for forming 22 being formed to he spiral shape having the lead angle corresponding to the the lead angle of the hollow part 4 in the spiral projecting line part, so by using this die, the twisted material having the spiral hollow part 4 along the projecting part in the spiral projecting part 3 can be easily manufactured.

Description

【発明の詳細な説明】 産業上の利用分野 この発明は、例えば自動車用スーパーチャージャー、コ
ンブレーサー用ローター等のスクリューローター等に製
造されるアルミニウム等の金属製ねじり材を成形するね
じり押出し用ダイスに関する。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a torsional extrusion die for forming a twisted metal material such as aluminum, which is manufactured into screw rotors such as automobile superchargers and rotors for combustors. .

従来の技術及び課題 例えば、自動車用スーパーチャージャーに使用されるス
クリューローター(51)は、第7図に示されるように
、外周部に長さ方向螺旋状の複数本の凸条部(52)を
有するもので、これが回転駆動されることにより高圧空
気が強制的にエンジンに吸入される。なお、(53)は
軸孔である。
BACKGROUND ART AND PROBLEMS For example, a screw rotor (51) used in an automobile supercharger has a plurality of longitudinally spiral protrusions (52) on its outer periphery, as shown in FIG. When this is rotated, high pressure air is forcibly drawn into the engine. Note that (53) is a shaft hole.

そして、上J己スーパーチャージャー(こおいてスクリ
ューローター(51)は回転スピードの急激な変化を行
いうるように慣性モーメントを小さくするため可及的に
軽量で、かつ強度的にも充分強いものであることが望ま
れる。
The screw rotor (51) is as light as possible and strong enough to reduce the moment of inertia so that it can make rapid changes in rotational speed. Something is desired.

従って、上記の場合でいえば、スクリューロタ−(51
)の螺旋凸条部(52)内に独立した中空部を形成して
軽量化及び強度保持を図ることが一つの方法として考え
られる。
Therefore, in the above case, the screw rotor (51
One possible method is to form an independent hollow part in the spiral protruding part (52) of the part to reduce weight and maintain strength.

しかし、螺旋凸条部(52)内を上記のような中空にす
るためには、凸条部(52)に沿うような独立螺旋状の
中空部を形成することができなければならないが、これ
は従来の手法では極めて困難である。
However, in order to make the inside of the spiral protrusion (52) hollow as described above, it is necessary to be able to form an independent spiral hollow part along the protrusion (52). is extremely difficult using conventional methods.

この発明は、上記問題点を克服し、外周部に長さ方向の
螺旋凸条部を有し該螺旋凸条部内が中空に形成されてな
るねじり材の製造をきわめて容易に実現することができ
るねじり押出用ダイスを提供することを目的とする。
The present invention overcomes the above-mentioned problems and can extremely easily produce a twisted material having a longitudinal spiral protrusion on the outer periphery and having a hollow interior. The purpose of the present invention is to provide a die for twisting extrusion.

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、外周部に長さ方向の螺
旋凸条部を有し、該螺旋凸条部内が中空に形成されてな
るねじり材のねじり押出用ダイスであって、 該ねじり材の外周形状に対応する横断面形状及びリード
角のベアリング部を有する押出孔が備えられたダイス雌
型と、 前記螺旋凸条部内の中空部の形状に対応する横断面形状
の成形凸部を有し、該成形凸部が螺旋凸条部内の中空部
のリード角に対応するリード角を有する螺旋状に形成さ
れているダイス雄型と、 の組合わせよりなることを特徴とするねじり材のねじり
押出用ダイスを要旨とする。
Means for Solving the Problems In order to achieve the above object, the present invention provides a die for torsional extrusion of twisted material, which has a longitudinal spiral convex strip on the outer periphery and is hollow inside the spiral convex strip. a female die equipped with an extrusion hole having a bearing portion with a cross-sectional shape and a lead angle corresponding to the outer peripheral shape of the twisted material; and a cross-sectional shape corresponding to the shape of the hollow part in the spiral convex strip. a male die having a molding convex part, the molding convex part being formed in a spiral shape having a lead angle corresponding to the lead angle of the hollow part in the spiral convex part; The gist is a die for torsional extrusion of twisted materials.

作用 上記ねじり押出用ダイスでは、押出材料はダイス雌型の
押出孔を通過することによってねじり方向の方向性を付
与され、それによりねじり材の外周形状が得られる。ま
た、この押出材料はダイス雄型の螺旋状の成形凸部に沿
って流されることによってねじり方向の方向性を付与さ
れ、ねじり材の螺旋凸条部内に該凸状部に沿う独立螺旋
状の中空部が得られる。
Function: In the above-described die for torsional extrusion, the extruded material is imparted with directionality in the twisting direction by passing through the extrusion hole of the female die, thereby obtaining the outer circumferential shape of the twisted material. In addition, this extruded material is given directionality in the twisting direction by being flowed along the spiral forming convex part of the male die, and an independent spiral along the convex part is formed in the spiral convex strip of the twisted material. A hollow part is obtained.

実施例 以下、この発明の詳細な説明する。Example The present invention will be explained in detail below.

第1図はスクリューローター(1)を示すもので、本発
明のねじり押出用ダイスによって得られたねじり材を所
定長さに切断することにょって製造されたものである。
FIG. 1 shows a screw rotor (1), which is manufactured by cutting a twisted material obtained by the twisting extrusion die of the present invention into a predetermined length.

このスクリューローター(1)は、アルミニウム製で、
その軸芯部に軸孔(2)を有すると共に、外周部に長さ
方向螺旋の4本の凸条部(3)を有する所定長さ寸法の
もので、各螺旋凸条部(3)内に該凸条部に沿う独立し
た螺旋状の中空部(4)が前記軸孔(2)の周りを周回
する態様において形成されている。
This screw rotor (1) is made of aluminum,
It has a shaft hole (2) in its axial center, and has four lengthwise spiral protrusions (3) on its outer periphery, each having a predetermined length. An independent spiral hollow part (4) along the convex part is formed in such a manner that it goes around the shaft hole (2).

そして、第2図ないし第5図は、ロータ(1)にされる
ねじり材を成形するねじり押出用ダイス(5)を示す。
FIGS. 2 to 5 show a torsional extrusion die (5) for forming a twisted material to be made into a rotor (1).

この押出用ダイス(5)はダイス雌型(6)とダイス雄
型(7)との組合わせによる。
This extrusion die (5) is a combination of a female die (6) and a male die (7).

ダイス雌型(6)は、ねじり材、即ちスクリューロータ
ー(1)の外周部を成形するもので、第2図に示される
ように、盤状の雌型本体(8)の後端面中央部に凹状の
溶着室(9)を有し、かつその中央部に該雌型本体(8
)を軸線方向に貫通する押出孔(10)を有する。
The female die (6) is used to form the outer periphery of the twisted material, that is, the screw rotor (1), and as shown in FIG. It has a concave welding chamber (9), and the female body (8) is located in the center of the welding chamber (9).
) has an extrusion hole (10) passing through it in the axial direction.

かかる押出孔(10)は、第5図に示されるように、後
側のベアリング部(11)と前側のリリーフ部(12)
とを有する。ベアリング部(11)は、第4図(イ)に
示されるように、その横断面形状がスクリューローター
(1)の横断面外周形状に対応するものにされると共に
、長さ方向において該ローター(1)の螺旋凸条部(3
)のリード角に対応するリード角のねじり状に形成され
ている。
As shown in FIG.
and has. As shown in FIG. 4(a), the bearing part (11) has a cross-sectional shape corresponding to the cross-sectional outer peripheral shape of the screw rotor (1), and has a shape corresponding to the outer peripheral shape of the screw rotor (1) in the longitudinal direction. 1) spiral convex stripe (3
) is formed in a twisted shape with a lead angle corresponding to the lead angle.

ダイス雄型(7)は、第2図に示されるように、スクリ
ューローター(1)の軸孔(2)を成形する軸孔成形用
金型(14)と、同ローター(1)の凸条部(3)内の
中空部(4)を成形する中空部成形用金型(15)とに
よる。
As shown in FIG. 2, the male die (7) includes a shaft hole forming mold (14) for forming the shaft hole (2) of the screw rotor (1), and a convex strip of the rotor (1). A hollow part molding die (15) is used to mold the hollow part (4) in the part (3).

軸孔成形用金型(14)は、盤状の金型本体(17)の
前端面中央部に前方突出状の軸孔成形凸部(18)が設
けられると共に、該軸孔成形凸部(18)の回りに該金
型本体(17)を前後方向に貫通する複数個の押出材料
流通孔(I9)が設けられたものである。この押出材料
流通孔(19)は、第4図(ロ)に示されるように、押
出材料の一部を軸穴成形凸部(18)側に向けて方向づ
けるための傾斜面(19a )を有する。
The shaft hole forming mold (14) is provided with a shaft hole forming convex portion (18) projecting forward at the center of the front end surface of a plate-shaped mold body (17), and the shaft hole forming convex portion ( A plurality of extruded material flow holes (I9) are provided around the mold body (18), passing through the mold body (17) in the front-rear direction. This extruded material distribution hole (19) has an inclined surface (19a) for directing a part of the extruded material toward the shaft hole forming convex portion (18), as shown in FIG. 4(b). .

中空部成形用金型(15)は、第2図に示されるように
、盤状の金型本体(21)の前端面中央部にその中心部
を囲む態様においてローター(1)の凸条部(3)の本
数に対応する個数の前方突出状の中空部成形凸部(22
)が設けられると共に、該中空部成形凸部(22)の外
側に金型本体(21)を前後方向に貫通する複数個の傾
斜状押出材料流通孔(23)が設けられ、かつ中空部成
形凸部(22)の内側の軸芯部に金型本体(21)を貫
通する、前記軸孔成形凸部(18)よりも径大な通し孔
(24)が設けられたものである。
As shown in FIG. 2, the hollow part molding die (15) has a convex strip of the rotor (1) in the central part of the front end surface of the plate-shaped die body (21), which surrounds the center part. (3) The number of forward-protruding hollow molded convex portions (22
), and a plurality of inclined extrusion material flow holes (23) passing through the mold body (21) in the front-rear direction are provided on the outside of the hollow part molding convex part (22), and the hollow part molding A through hole (24) having a larger diameter than the axial hole forming convex part (18) is provided in the inner shaft core part of the convex part (22) and passes through the mold body (21).

各中空部成形凸部(22)は、第4図(ハ)に示される
ように、その横断面形状がローター(1)の螺旋凸条部
(3)の中空部(4)の横断面形状に対応する横断面形
状に形成され、かつ長さ方向において該ローター(1)
の凸条部(3)のリード角に対応するリード角を有する
螺旋状に形成されている。
As shown in FIG. 4(c), each hollow portion molding convex portion (22) has a cross-sectional shape that is the same as the cross-sectional shape of the hollow portion (4) of the spiral convex strip (3) of the rotor (1). The rotor (1) is formed in a cross-sectional shape corresponding to the rotor (1) in the longitudinal direction.
It is formed in a spiral shape having a lead angle corresponding to the lead angle of the protruding portion (3).

この金型(15)における押出材料流通孔(28)は、
材料の流れに、各中空部成形凸部(22)に従うねじり
方向の方向性を予め付与すべく、金型(15)の軸線方
向に対し、所定の角度傾斜されている。
The extruded material flow hole (28) in this mold (15) is
It is inclined at a predetermined angle with respect to the axial direction of the mold (15) in order to give the flow of the material a twisting direction according to each hollow molding convex part (22) in advance.

そして、上記の軸孔成形用金型(14)と中空部成形用
金型(15)は、中空部成形用金型(15)の通し孔(
24)に、後方側から軸孔成形用金型(14)の成形凸
部(18)を通し、該成形凸部(18)を中空部成形用
金型(15)の金型本体(21)の前端面から前方に突
出させた状態となるように重合わせ状態に組み合わせる
ことによりダイス雄型(7)に組み立てられる。この組
立て状態において、軸孔成形凸部(18)と通し孔(2
4)との間に押出材料流通隙間(27)が形成される。
The above-mentioned shaft hole forming mold (14) and hollow part forming mold (15) are connected to the through hole (15) of the hollow part forming mold (15).
24) from the rear side, and pass the molding convexity (18) into the mold body (21) of the hollow part molding mold (15). are assembled into a male die (7) by combining them in an overlapping state so that they protrude forward from the front end surface. In this assembled state, the shaft hole molding convex part (18) and the through hole (2
4), an extruded material flow gap (27) is formed between the two.

そして、このダイス雄型(7)が、ダイス雌型(6)に
組み合わされ、第3図に示されるような押出用ダイス(
5)に組み立てられる。なお、(26)は成形隙間であ
る。
Then, this male die (7) is combined with the female die (6), and an extrusion die (
5) is assembled. Note that (26) is a molding gap.

上記ねじり押出用ダイス(5)では、第5図に示される
ように、これを通過する押出材料は、ダイス雄型(5)
の両金型(14)  (15)の材料流通孔(+9) 
 (23)及び材料流通隙間(27)を通過することに
よって溶着室(9)内に流入される。その際、押出材料
の一部が、傾斜面(19a)の作用により流通隙間(2
7)を通過することによって軸孔成形凸部(18)及び
各中空部成形凸部(22)相互間にも流入される。そし
て、上記押出材料は、ダイス雌型(6)の押出孔(lO
)を通過することによって、該押出孔(10)、即ちベ
アリング部(11)に与えられているリード角の作用に
よってねじり方向の方向性を与えられ、それによりスク
リューローターの外周形状が得られる。また、この押出
材料はダイス雄型(7)の螺旋状成形凸部(22)に沿
って流れることによってねじり方向の方向性を付与され
てスクリューローター(1)の螺旋凸条部(3)内の中
空部(4)が得られる。かつ軸孔成形凸部(18)によ
りローター(1)の軸孔(2)が得られる。
In the above-mentioned twisting extrusion die (5), as shown in FIG.
Material flow holes (+9) in both molds (14) (15)
(23) and the material flow gap (27) to flow into the welding chamber (9). At that time, a part of the extruded material flows through the flow gap (2) due to the action of the inclined surface (19a).
7), it also flows between the shaft hole molding convex part (18) and each hollow part molding convex part (22). Then, the extruded material is transferred to the extrusion hole (lO
), the extrusion hole (10), ie, the bearing part (11), is given directionality in the twisting direction by the action of the lead angle, thereby obtaining the outer circumferential shape of the screw rotor. In addition, this extruded material flows along the helical forming convex part (22) of the male die (7), and is imparted with directionality in the torsion direction, and is inside the helical convex part (3) of the screw rotor (1). A hollow part (4) is obtained. In addition, the shaft hole (2) of the rotor (1) is obtained by the shaft hole forming convex portion (18).

なお、この押出用ダイス(5)のように、ダイス雄型(
7)に、傾斜された材料流通孔(23)を採用して押出
材料にねじり方向の方向性を予め付与するようにするこ
とにより、成形隙間(26)を通過する押出材料が急激
な方向変化を行うことが防がれ、そのため、特に螺旋凸
条部(3)外周の寸法形状精度に優れたローター(1)
用のねしり材を得ることができる。
In addition, like this extrusion die (5), the male die (
In 7), by employing the inclined material flow hole (23) to give the extruded material a twisting direction in advance, the extruded material passing through the forming gap (26) can avoid sudden changes in direction. Therefore, the rotor (1) has excellent dimensional and shape accuracy, especially around the spiral convex portion (3).
You can get batter material for this purpose.

第6図は、押出用ダイスの他の例を示す。かかる押出用
ダイス(31)は、前記ダイス(5)とは、ダイス雄型
(32)の構成において異なる。
FIG. 6 shows another example of an extrusion die. This extrusion die (31) differs from the die (5) in the configuration of the male die (32).

即ち、この実施例のダイス雄型(32)は、盤状の金型
本体(33)の前端面中心部に軸孔成形用の成形部材(
34)が螺着されることによって軸孔成形凸部か形成さ
れたものである。そして、螺旋状の中空部成形用凸部(
37)は、金型本体(33)の前面部の軸孔成形部材(
34)取付は部周囲に直立状に立設された複数個の所定
高さの柱状部(36)の先端部に設けられている。かか
る雄型(32)を使用した押出用ダイス(32)によっ
ても、軸孔成形凸部(1B)及び各中空部成形凸部(3
7)の相互間に押出材料の流入が可能となり、型材にお
いて軸孔(2)と中空部(4)とを相互独立状に仕切る
適正な仕切壁(16)を有するねじり材、ひいてはスク
リューローター(1)の製造が可能である。
That is, the male die (32) of this embodiment has a molding member for forming a shaft hole (
34) is screwed to form a shaft hole molding convex portion. Then, a convex part for forming a spiral hollow part (
37) is a shaft hole molding member (
34) Attachment is provided at the tips of a plurality of columnar sections (36) of a predetermined height that are erected around the section. The extrusion die (32) using such a male mold (32) also allows the shaft hole forming convex portion (1B) and each hollow portion forming convex portion (3
7), the extruded material can flow between the torsion material and the screw rotor ( 1) can be manufactured.

なお、この発明におけるねじり押出用ダイスは、スクリ
ューロータ−(1)用のねじり材の成形に用いる場合に
限定されるものではなく、各種用途のねじり材成形用の
ダイスとして広く使用することができる。また、この発
明のダイスは、軸芯部が中実のねじり材の製造に適用す
ることもでき、その場合は、軸孔成形凸部が省略される
Note that the torsional extrusion die in this invention is not limited to use for forming twisted material for the screw rotor (1), but can be widely used as a die for forming twisted material for various purposes. . Furthermore, the die of the present invention can also be applied to the production of twisted materials having a solid shaft core portion, and in that case, the shaft hole forming convex portion is omitted.

発明の効果 上述の次第で、この発明のねじり押出用ダイスは、ねじ
り材の外周形状に対応する横断面形状及びリード角のベ
アリング部を有する押出孔が備えられたダイス雌型と、
前記螺旋凸条部内の中空部の形状に対応する横断面形状
の成形凸部を有し、該成形凸部が螺旋凸条部内の中空部
のリード角に対応するリード角を有する螺旋状に形成さ
れているダイス雄型と、が組合わせられたものであるか
ら、押出材料は、この押出用ダイスを通過する際にねじ
り材の外周形状に沿うねじり方向の方向性が付与される
のみならず、螺旋凸条部内の中空部形状に沿うねじり方
向の方向性が付与される。従って、このダイスの使用に
より、螺旋凸状部内に該凸状部に沿う螺旋状の中空部を
有する軽量かつ強度のあるねじり材の極めて容易な製造
を実現することかできる。
Effects of the Invention As described above, the torsion extrusion die of the present invention includes a die female die equipped with an extrusion hole having a bearing portion having a cross-sectional shape and a lead angle corresponding to the outer peripheral shape of the torsion material;
The molded convex portion has a cross-sectional shape corresponding to the shape of the hollow portion within the spiral convex portion, and the molded convex portion is formed in a spiral shape having a lead angle corresponding to the lead angle of the hollow portion within the spiral convex portion. When the extruded material passes through this extrusion die, it is not only given the directionality of the twisting direction along the outer circumferential shape of the twisted material. , directionality in the twisting direction is given along the shape of the hollow part within the spiral convex strip. Therefore, by using this die, it is possible to extremely easily manufacture a lightweight and strong twisted material having a spiral hollow part inside the spiral convex part along the convex part.

【図面の簡単な説明】[Brief explanation of drawings]

第1図ないし第5図はこの発明の一実施例を示すもので
、第1図はスクリューローターの斜視図、第2図は押出
用ダイスを分離状態で示す斜視図、第3図は押出用ダイ
スを組合わせ状態で示す斜視図、第4図(イ)はスクリ
ューローターの外周部成形用のダイス雌型の端面図、同
図(ロ)はスクリューローターの軸孔を成形する第1ダ
イス雄型の端面図、同図(ハ)はスクリューローターの
凸条部内中空部を成形する第2ダイス雄型の端面図、第
5図は押出用ダイスの作動状態を示す縦断面図である。 第6図はこの発明の押出用ダイスの他の実施例を分離状
態で示す斜視図である。 第7図は従来のスクリューローターを示す斜視図である
。 (1)・・・スクリューローター(ねじり材)、(3)
・・・螺旋凸条部、(4)・・・中空部、(5)(31
)・・・押出用ダイス、(6)・・・雌型、(7)(3
2)・・・雄型、(10)・・・押出孔、(22)・・
・螺旋状成形凸部。 以上 第7図
Figures 1 to 5 show an embodiment of the present invention. Figure 1 is a perspective view of a screw rotor, Figure 2 is a perspective view of an extrusion die in a separated state, and Figure 3 is a perspective view of an extrusion die. A perspective view showing the dies in a combined state, FIG. FIG. 5 is an end view of the mold, FIG. 5C is an end view of the male mold of the second die for molding the hollow portion in the convex strip of the screw rotor, and FIG. 5 is a longitudinal cross-sectional view showing the operating state of the extrusion die. FIG. 6 is a perspective view showing another embodiment of the extrusion die of the present invention in a separated state. FIG. 7 is a perspective view showing a conventional screw rotor. (1)...Screw rotor (twisted material), (3)
...Spiral convex part, (4)...Hollow part, (5) (31
)...Extrusion die, (6)...Female die, (7)(3
2)...male mold, (10)...extrusion hole, (22)...
・Spiral shaped convex part. Figure 7 above

Claims (1)

【特許請求の範囲】 外周部に長さ方向の螺旋凸条部を有し、該螺旋凸条部内
が中空に形成されてなるねじり材のねじり押出用ダイス
であって、 該ねじり材の外周形状に対応する横断面形状及びリード
角のベアリング部を有する押出孔が備えられたダイス雌
型と、 前記螺旋凸条部内の中空部の形状に対応する横断面形状
の成形凸部を有し、該成形凸部が螺旋凸条部内の中空部
のリード角に対応するリード角を有する螺旋状に形成さ
れているダイス雄型と、 の組合わせよりなることを特徴とするねじり材のねじり
押出用ダイス。
[Scope of Claims] A die for torsionally extruding a twisted material, the die having a longitudinal spiral protrusion on the outer periphery, the inside of the spiral protrusion being hollow, the die comprising: an outer peripheral shape of the twisted material; a female die equipped with an extrusion hole having a bearing portion with a cross-sectional shape and a lead angle corresponding to the shape of the spiral convex portion; A die for torsional extrusion of twisted materials, characterized in that it is made of a combination of: a male die in which a molding convex part has a lead angle corresponding to a lead angle of a hollow part within the spiral convex part; and .
JP2145183A 1990-06-01 1990-06-01 Die for torsional extrusion of twisted materials Expired - Fee Related JPH0679741B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2145183A JPH0679741B2 (en) 1990-06-01 1990-06-01 Die for torsional extrusion of twisted materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2145183A JPH0679741B2 (en) 1990-06-01 1990-06-01 Die for torsional extrusion of twisted materials

Publications (2)

Publication Number Publication Date
JPH0437411A true JPH0437411A (en) 1992-02-07
JPH0679741B2 JPH0679741B2 (en) 1994-10-12

Family

ID=15379349

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2145183A Expired - Fee Related JPH0679741B2 (en) 1990-06-01 1990-06-01 Die for torsional extrusion of twisted materials

Country Status (1)

Country Link
JP (1) JPH0679741B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7069760B2 (en) * 2000-06-10 2006-07-04 In Tai Jin Device and method for manufacturing a curved metal tube or rod
JP2006289479A (en) * 2005-04-14 2006-10-26 National Institute For Materials Science Intensive working method of metal, and die used for intensive working method
DE102012100723B3 (en) * 2012-01-30 2013-05-29 Sieber Forming Solutions Gmbh Method and device for producing metallic components with a shank which is deformed along at least one helix along its longitudinal axis
CN106623474A (en) * 2017-01-17 2017-05-10 辽源飞跃工模具有限公司 Extruding die with interior and exterior of pipe provided with spiral fin proximate matter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6429841A (en) * 1987-07-24 1989-01-31 Shimadzu Corp Film with holding battery
JPH01215408A (en) * 1988-02-23 1989-08-29 Showa Alum Corp Manufacture of twist formed part used for rotor or the like
JPH0234702A (en) * 1988-07-22 1990-02-05 Hitachi Metals Ltd Twist extruding apparatus for sintering hollow member and extruding method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6429841A (en) * 1987-07-24 1989-01-31 Shimadzu Corp Film with holding battery
JPH01215408A (en) * 1988-02-23 1989-08-29 Showa Alum Corp Manufacture of twist formed part used for rotor or the like
JPH0234702A (en) * 1988-07-22 1990-02-05 Hitachi Metals Ltd Twist extruding apparatus for sintering hollow member and extruding method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7069760B2 (en) * 2000-06-10 2006-07-04 In Tai Jin Device and method for manufacturing a curved metal tube or rod
JP2006289479A (en) * 2005-04-14 2006-10-26 National Institute For Materials Science Intensive working method of metal, and die used for intensive working method
DE102012100723B3 (en) * 2012-01-30 2013-05-29 Sieber Forming Solutions Gmbh Method and device for producing metallic components with a shank which is deformed along at least one helix along its longitudinal axis
CN106623474A (en) * 2017-01-17 2017-05-10 辽源飞跃工模具有限公司 Extruding die with interior and exterior of pipe provided with spiral fin proximate matter

Also Published As

Publication number Publication date
JPH0679741B2 (en) 1994-10-12

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