JP7116425B2 - forging equipment - Google Patents

forging equipment Download PDF

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JP7116425B2
JP7116425B2 JP2019204422A JP2019204422A JP7116425B2 JP 7116425 B2 JP7116425 B2 JP 7116425B2 JP 2019204422 A JP2019204422 A JP 2019204422A JP 2019204422 A JP2019204422 A JP 2019204422A JP 7116425 B2 JP7116425 B2 JP 7116425B2
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forging
lower mold
upper die
die
driving force
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JP2020019065A (en
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明 荻野
淑明 渡辺
幸一 戸澤
栄太郎 行武
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Ogino Industrial Co Ltd
Shibaura Institute of Technology
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Ogino Industrial Co Ltd
Shibaura Institute of Technology
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Description

本発明は、鍛造時に素材にねじり加工を加える鍛造装置に関する。 The present invention relates to a forging device that twists a material during forging.

従来より被加工材であるワークにねじりを加えながら鍛造加工をする方法が提案されている（例えば、特許文献１参照）。特許文献１に開示された押出し加工方法では、コンテナまたはダイスを回転させながら押出し加工を行っている。 Conventionally, there has been proposed a method of forging while twisting a workpiece, which is a material to be processed (see, for example, Patent Document 1). In the extrusion method disclosed in Patent Document 1, extrusion is performed while rotating a container or a die.

特許第４３０５１５１号公報Japanese Patent No. 4305151

しかし、従来の技術では、効率的にコンテナまたはダイスを回転させておらず、ワークに大きな捩じり力を与えることは困難であった。このため、加工中の材料の流動性があまり良くなかった。従って、ワークを所望の形状まで加工するためには、大きなプレス圧が必要であり、装置自体の大型化を招いていた。 However, the conventional technology does not efficiently rotate the container or the die, making it difficult to apply a large torsional force to the workpiece. As a result, the flowability of the material during processing was not very good. Therefore, in order to process the workpiece into a desired shape, a large press pressure is required, which leads to an increase in the size of the apparatus itself.

そこで本発明は、鍛造加工時にワークに大きな捩じり力を与えることができ、単相及び複相合金材料の組織微細化による流動性を向上させることによる大きな塑性変形により、装置の小型化と低価格化が可能な技術を提供することを目的とする。 Therefore, the present invention is capable of applying a large torsional force to the work during forging, and by improving the fluidity due to the refinement of the structure of the single-phase and dual-phase alloy materials, large plastic deformation is achieved. The purpose is to provide a technology that enables cost reduction.

上記目的を解決するために、本発明の一態様である鍛造装置は、上型と下型とによりワークを鍛造加工する鍛造装置であって、回転駆動力を発生する駆動力発生部と、前記上型の移動方向に対し直交する方向における前記下型の最大寸法よりも長い直径を有し、外周において前記回転駆動力を受けて回転し、当該回転により前記下型を回転させる回転部と、を備える。 In order to solve the above object, a forging apparatus according to one aspect of the present invention is a forging apparatus for forging a workpiece with an upper die and a lower die, comprising: a driving force generating portion for generating a rotational driving force; a rotating part that has a diameter longer than the maximum dimension of the lower mold in a direction perpendicular to the moving direction of the upper mold, rotates on the outer periphery by receiving the rotational driving force, and rotates the lower mold by the rotation; Prepare.

また、前記駆動力発生部は、インバータモータと、前記インバータモータの回転駆動力を出力する出力ギヤとを有し、前記回転部は、前記下型を支持し、前記外周に前記出力ギヤと直接噛合する伝達ギヤを有し、前記インバータモータの回転駆動力が、前記出力ギヤを介して、前記伝達ギヤに伝達されることにより、前記回転部と前記下型とが一体的に回転するように構成されても良い。 Further, the driving force generating section has an inverter motor and an output gear that outputs the rotational driving force of the inverter motor. It has a transmission gear that meshes with each other, and the rotation driving force of the inverter motor is transmitted to the transmission gear via the output gear so that the rotating part and the lower die rotate integrally. may be configured.

前記上型に接続され前記上型を移動させる油圧シリンダ、前記油圧シリンダに作動油を供給するポンプ、および前記ポンプを駆動するサーボモータを有する上型駆動部を更に備え、前記駆動力発生部は、インバータモータを有し、前記回転部は、前記インバータモータの回転駆動力を受けて回転し、当該回転により前記下型を回転させても良い。 It further comprises an upper die driving section having a hydraulic cylinder connected to the upper die for moving the upper die, a pump for supplying hydraulic oil to the hydraulic cylinder, and a servo motor for driving the pump, wherein the driving force generating section is , an inverter motor may be provided, and the rotating part may be rotated by receiving a rotational driving force of the inverter motor, and the lower die may be rotated by the rotation.

本発明によれば、鍛造加工時にワークに大きなねじり力を与えることができ、材料の流動性を向上させることによる大きな塑性変形により、装置の小型化が可能な技術を提供することができる。 According to the present invention, it is possible to apply a large torsional force to the work during forging, and to provide a technique that enables the downsizing of the device due to large plastic deformation due to the improvement of the fluidity of the material.

本発明の実施形態に係る鍛造装置の概略図を示す。1 shows a schematic diagram of a forging device according to an embodiment of the present invention; FIG. （ａ）は、ねじり鍛造前の材料の組織を示す図であり、（ｂ）は、ねじり鍛造後の材料の組織を示す図である。(a) is a diagram showing the structure of the material before torsion forging, and (b) is a diagram showing the structure of the material after torsion forging.

本発明の一実施形態による鍛造装置について、図面を参照して説明する。 A forging apparatus according to an embodiment of the present invention will be described with reference to the drawings.

図１は、本実施形態における鍛造装置１の概略図を示している。図１に示すように、鍛造装置１は、制御部２と、上型部１０と、下型部２０と、駆動力発生部３０と、下型台４０とを備える。なお、鍛造装置１は、有底筒状体を形成するための後方押出しおよび前方押し出し装置であり、鍛造装置１により加工されるワークＷは、例えば、マグネシウム合金からなる。 FIG. 1 shows a schematic diagram of a forging apparatus 1 in this embodiment. As shown in FIG. 1 , the forging apparatus 1 includes a control section 2 , an upper die section 10 , a lower die section 20 , a driving force generating section 30 and a lower die table 40 . The forging device 1 is a backward extrusion and forward extrusion device for forming a bottomed cylindrical body, and the work W processed by the forging device 1 is made of, for example, a magnesium alloy.

上型部１０は、図示せぬフレームに固定された上型駆動部１１と、上型である上型パンチ１２とを有する。上型駆動部１１は、例えば、上型パンチ１２に接続される油圧シリンダと、油圧シリンダに作動油を供給するポンプと、ポンプを駆動するサーボモータとにより構成される。すなわち、上型パンチ１２は、サーボモータ駆動の油圧プレスにより移動制御が行われる。上型パンチ１２は、円柱状をなし、上型駆動部１１により鉛直方向に移動可能に構成されている。 The upper die section 10 has an upper die drive section 11 fixed to a frame (not shown) and an upper die punch 12 which is an upper die. The upper die drive unit 11 is composed of, for example, a hydraulic cylinder connected to the upper die punch 12, a pump that supplies hydraulic oil to the hydraulic cylinder, and a servomotor that drives the pump. That is, the movement of the upper punch 12 is controlled by a hydraulic press driven by a servomotor. The upper die punch 12 has a cylindrical shape and is configured to be movable in the vertical direction by the upper die driving section 11 .

下型部２０は、上型部１０の下側に位置し、支持テーブル２１と、下型２２と、ピン駆動部２３と、ノックアウトピン２４とを有する。 The lower die part 20 is positioned below the upper die part 10 and has a support table 21 , a lower die 22 , a pin driving part 23 and knockout pins 24 .

支持テーブル２１は、平面視略円形状をなし、下型台４０に対し回転可能に設けられている。支持テーブル２１の外周には、平歯車である伝達ギヤ２１Ａが形成されている。また、支持テーブル２１の中心部には、ノックアウトピン２４を貫通させるための貫通孔２１ｂが形成されている。 The support table 21 has a substantially circular shape in a plan view and is rotatably provided with respect to the lower die table 40 . A transmission gear 21A, which is a spur gear, is formed on the outer periphery of the support table 21. As shown in FIG. A through hole 21b is formed in the center of the support table 21 for the knockout pin 24 to pass through.

下型２２は、支持テーブル２１の上面に対し図示せぬボルトにより固定され、支持テーブル２１と共に一体的に回転可能に構成されている。また、下型２２は、平面視略矩形状をなし、その対角線の長さは支持テーブル２１の直径よりも短く構成されている。すなわち、支持テーブル２１は、上型パンチ１２の移動方向に対し直交する方向における下型２２の最大寸法よりも長い直径を有する。 The lower mold 22 is fixed to the upper surface of the support table 21 by bolts (not shown), and is configured to be integrally rotatable together with the support table 21 . The lower die 22 has a substantially rectangular shape in a plan view, and the length of its diagonal line is shorter than the diameter of the support table 21 . That is, the support table 21 has a diameter longer than the maximum dimension of the lower die 22 in the direction perpendicular to the moving direction of the upper die punch 12 .

下型２２の中心部には、円柱状の成形凹部２２ａが形成されている。成形凹部２２ａの内径は、上型パンチ１２の外径よりも大きく構成され、上型パンチ１２は、成形凹部２２ａに進入可能に構成される。また、成形凹部２２ａの底部には、ノックアウトピン２４を挿通させ、貫通孔２１ｂと連通する貫通孔２２ｂが形成されている。また、下型２２は、図示せぬヒータにより加熱可能に構成されている。なお、成形凹部２２ａの中心軸と支持テーブル２１の回転軸とが同軸となるように、下型２２は支持テーブル２１に固定される。 A cylindrical molding recess 22 a is formed in the center of the lower mold 22 . The inner diameter of the forming recess 22a is configured to be larger than the outer diameter of the upper die punch 12, and the upper die punch 12 is configured to be able to enter the forming recess 22a. Further, a through hole 22b is formed in the bottom of the molded recess 22a, through which the knockout pin 24 is inserted and which communicates with the through hole 21b. Further, the lower mold 22 is configured to be heated by a heater (not shown). The lower mold 22 is fixed to the support table 21 so that the center axis of the molding recess 22a and the rotation axis of the support table 21 are coaxial.

ピン駆動部２３は、例えば、ノックアウトピン２４に接続される油圧シリンダと、油圧シリンダに作動油を供給するポンプと、ポンプを駆動するサーボモータとにより構成される。ノックアウトピン２４は、貫通孔２１ｂ、２２ｂに挿入され、ピン駆動部２３によりに鉛直方向に移動可能に構成されている。 The pin drive unit 23 is composed of, for example, a hydraulic cylinder connected to the knockout pin 24, a pump that supplies hydraulic oil to the hydraulic cylinder, and a servomotor that drives the pump. The knockout pin 24 is inserted into the through holes 21b and 22b and is configured to be vertically movable by the pin driving portion 23 .

駆動力発生部３０は、インバータモータ３１と、インバータモータ３１の回転駆動力を出力する出力ギヤ３２とを有する。平歯車である出力ギヤ３２は、伝達ギヤ２１Ａに噛合されている。 The driving force generator 30 has an inverter motor 31 and an output gear 32 that outputs the rotational driving force of the inverter motor 31 . The output gear 32, which is a spur gear, is meshed with the transmission gear 21A.

制御部２は、配線３を介して、上型駆動部１１、ピン駆動部２３、およびインバータモータ３１を制御する。 The control unit 2 controls the upper mold driving unit 11 , the pin driving unit 23 and the inverter motor 31 via the wiring 3 .

回転支持台である下型台４０は、図示せぬフレームに固定され、支持テーブル２１を回転可能に支持し、支持凹部４０ａが形成されている。支持凹部４０ａは、支持テーブル２１の下方に突出する凸部２１Ｃを受け入るように構成されている。支持凹部４０ａの底面と、凸部２１Ｃの下面との間に隙間が形成され、当該隙間には、耐荷重性能が高い油４２が充填されている。よって、支持テーブル２１は、油４２に浮いた状態で、下型台４０に回転可能に支持されている。 A lower mold table 40, which is a rotary support table, is fixed to a frame (not shown), rotatably supports the support table 21, and has a support recess 40a. The support recess 40a is configured to receive a protrusion 21C protruding downward from the support table 21. As shown in FIG. A gap is formed between the bottom surface of the support recess 40a and the bottom surface of the projection 21C, and the gap is filled with oil 42 having high load resistance. Therefore, the support table 21 is rotatably supported by the lower die table 40 while floating on the oil 42 .

下型台４０の中心部には、ノックアウトピン２４を貫通させるための貫通孔４０ｂが形成されている。ノックアウトピン２４と、貫通孔４０ｂの内周面との間には、パイプスリーブ４１が設けられている。下型台４０のパイプスリーブ４１に接触する箇所、および凸部２１Ｃに接触する箇所には、パッキン４３が設けられており、油４２を密封している。 A through-hole 40b for allowing the knockout pin 24 to pass through is formed in the center of the lower die table 40 . A pipe sleeve 41 is provided between the knockout pin 24 and the inner peripheral surface of the through hole 40b. A packing 43 is provided at a portion of the lower die table 40 that contacts the pipe sleeve 41 and a portion that contacts the convex portion 21C to seal oil 42 .

次に、ワークＷを鍛造加工する際の鍛造装置１の動作について説明する。 Next, the operation of the forging apparatus 1 when forging the work W will be described.

まず、下型２２の成形凹部２２ａにマグネシウム合金からなる円柱状のワークＷをセットし、且つ下型２２を図示せぬヒータにより例えば２９０℃まで加熱する。 First, a cylindrical workpiece W made of a magnesium alloy is set in the forming recess 22a of the lower mold 22, and the lower mold 22 is heated to, for example, 290° C. by a heater (not shown).

次に、制御部２により、上型駆動部１１を駆動させて、上型パンチ１２を下降させると共に、インバータモータ３１を駆動させて、出力ギヤ３２を回転させ、伝達ギヤ２１を介して、支持テーブル２１を回転させる。そして、支持テーブル２１の回転により、下型２２もする。すなわち、下型２２の回転は、インバータモータ３１によりインバータ制御される。 Next, the control unit 2 drives the upper die drive unit 11 to lower the upper die punch 12, drives the inverter motor 31 to rotate the output gear 32, and supports the upper die via the transmission gear 21. Rotate the table 21 . The lower die 22 is also rotated by the rotation of the support table 21 . That is, the rotation of the lower die 22 is inverter-controlled by the inverter motor 31 .

そして、上型パンチ１２が、ワークＷの中央部を上側からプレスすることにより、ワークＷの外周面および下面が下型２２に押しつけられる。下型２２が回転しているので、ワークＷに対し捩じり力（回転力）が加わりながら、後方押出しおよび前方押し出しが行われ、有底筒状体が形成される。上型パンチ１２が下死点に到達しても下型２２は一定時間回転を続け、その後に制御部２は上型パンチ１２を上昇させ、上型パンチ１２を下型２２から離間させる。また、インバータモータ３１の回転を停止させて、下型２２の回転を停止させる。 Then, the upper die punch 12 presses the central portion of the work W from above, so that the outer peripheral surface and the lower surface of the work W are pressed against the lower die 22 . Since the lower mold 22 is rotating, the workpiece W is pushed backward and pushed forward while a twisting force (rotational force) is applied to the workpiece W to form a bottomed cylindrical body. Even if the upper die punch 12 reaches the bottom dead center, the lower die 22 continues to rotate for a certain period of time, after which the control section 2 lifts the upper die punch 12 and separates the upper die punch 12 from the lower die 22 . Also, the rotation of the inverter motor 31 is stopped to stop the rotation of the lower die 22 .

次に、制御部２は、ピン駆動部２３を駆動させ、ノックアウトピン２４を上昇させて、有底筒状体を下型２２から離型させる。 Next, the control unit 2 drives the pin driving unit 23 to raise the knockout pins 24 and release the bottomed cylindrical body from the lower mold 22 .

また、出力ギヤ３２を伝達ギヤ２１Ａに対し直接噛合させて、回転駆動力を伝達しているので、確実に回転駆動力を支持テーブル２１に与えることができ、大きなトルクを発生させることができる。 In addition, since the output gear 32 is directly meshed with the transmission gear 21A to transmit the rotational driving force, the rotational driving force can be reliably applied to the support table 21 and a large torque can be generated.

また、上型駆動部１１は、上型パンチ１２に接続される油圧シリンダと、油圧シリンダに作動油を供給するポンプと、ポンプを駆動するサーボモータとにより構成され、駆動力発生部３０は、インバータモータ３０により構成される。よって、制御部２により、上型パンチ１２を上型駆動部１１により適宜制御（圧力制御（定圧制御）および位置制御（定速制御））し、下型２２を駆動力発生部３０により適宜制御（回転速度制御）することにより、ワークＷの材質および加工形状に応じた最適な加工条件で鍛造加工を実行することができる。 The upper die driving section 11 includes a hydraulic cylinder connected to the upper punch 12, a pump that supplies hydraulic oil to the hydraulic cylinder, and a servomotor that drives the pump. It is composed of an inverter motor 30 . Therefore, the controller 2 appropriately controls the upper die punch 12 by the upper die driving section 11 (pressure control (constant pressure control) and position control (constant speed control)), and appropriately controls the lower die 22 by the driving force generating section 30. By (rotating speed control), forging can be performed under optimum processing conditions according to the material and processing shape of the workpiece W.

また、下型２２を支持する支持テーブル２１は、油４２に浮いた状態で、下型台４０に回転可能に支持されているので、支持テーブル２１と下型台４０との間に発生する摩擦抵抗力を小さくすることができ、支持テーブル２１を回転しやすくすることができる。 In addition, since the support table 21 supporting the lower die 22 is rotatably supported by the lower die table 40 while floating on the oil 42, the friction generated between the support table 21 and the lower die table 40 is The resistance can be reduced, and the support table 21 can be easily rotated.

本実施形態の鍛造装置１によれば、下型２２を支持する支持テーブル２１は、上型パンチ１２の移動方向に直交する方向における下型２２の最大寸法よりも長い直径を有し、外周に形成された伝達ギヤ２１Ａが、インバータモータ３１の回転駆動力を受けて回転し、当該回転により下型２１を回転させる。よって、大きなトルクを発生させることができ、下型２２の成形凹部２２ａに位置するワークＷに対し、大きなねじり力を与えることができる。すなわち、ワークＷには鍛造加工により加わる応力に加え大きなねじり力が加わる。特に、鍛造加工の下死点に於いてもねじり力によりせん断変形を付与することができる。これにより、ねじり鍛造加工前後の材料の組織写真を示す図２に示すように、材料の結晶粒を微細化させ流動性を向上させることができ、加工に必要なプレス圧を減少させることができる。従って、鍛造装置１の小型化および低価格化を実現することができる。さらに、短時間に大きなせん断変形を付与することができるので、所望の最終部品形状に近いニアネットシェイプ化が可能となり、生産性を向上させることができる。本実施形態の鍛造装置１では、薄肉の有底円筒部品を形成することができる。更には、低加工性材料の材質改善と高加工性化も図る事が出来る。 According to the forging apparatus 1 of the present embodiment, the support table 21 that supports the lower die 22 has a diameter longer than the maximum dimension of the lower die 22 in the direction perpendicular to the moving direction of the upper die punch 12, and The formed transmission gear 21A rotates by receiving the rotational driving force of the inverter motor 31, and the rotation causes the lower die 21 to rotate. Therefore, a large torque can be generated, and a large torsional force can be applied to the workpiece W positioned in the molding recess 22a of the lower mold 22. As shown in FIG. That is, the workpiece W is subjected to a large torsional force in addition to the stress applied by the forging process. In particular, shear deformation can be imparted by torsional force even at the bottom dead center of forging. As a result, as shown in Fig. 2, which shows photographs of the structure of the material before and after torsion forging, the crystal grains of the material can be refined to improve fluidity, and the press pressure required for processing can be reduced. . Therefore, it is possible to reduce the size and cost of the forging apparatus 1 . Furthermore, since a large shear deformation can be applied in a short period of time, near-net shaping close to the desired final part shape can be achieved, and productivity can be improved. The forging apparatus 1 of this embodiment can form a thin bottomed cylindrical part. Furthermore, it is possible to improve the quality of materials with low workability and increase the workability.

なお、本発明は、上述した実施例に限定されない。当業者であれば、本発明の範囲内で、種々の追加や変更等を行うことができる。 It should be noted that the present invention is not limited to the above-described embodiments. Those skilled in the art can make various additions, modifications, etc. within the scope of the present invention.

例えば、駆動力発生部３０から支持テーブル２１への回転駆動力の伝達は、ギヤを直接噛合させて行ったが、駆動ベルトまたは駆動チェーンを介して、駆動力発生部３０と支持テーブル２１とを連結して、回転駆動力を伝達するようにしても良い。また、出力ギヤ３２および伝達ギヤ２１Ａは、平歯車であったが、はすば歯車又は他の歯車であっても良い。また、ワークＷは、マグネシウム合金以外の金属またはその合金（単相または複相合金材料）であっても良い。 For example, transmission of the rotational driving force from the driving force generator 30 to the support table 21 was performed by directly meshing gears, but the driving force generator 30 and the support table 21 are connected via a drive belt or a drive chain. You may make it connect and transmit a rotational driving force. Moreover, although the output gear 32 and the transmission gear 21A are spur gears, they may be helical gears or other gears. Also, the workpiece W may be a metal other than a magnesium alloy or an alloy thereof (single-phase or multi-phase alloy material).

また、上記の実施形態では、鍛造を行う方向すなわち上型パンチ１２が移動する方向は鉛直方向であり、下型２２を水平面に対し平行に回転させたが、上型パンチ１２を水平方向に移動させて、下型２２を鉛直面に対し平行に回転させてねじり鍛造を行っても良い。 In the above-described embodiment, the forging direction, that is, the direction in which the upper punch 12 moves is the vertical direction, and the lower die 22 is rotated parallel to the horizontal plane. The lower die 22 may be rotated parallel to the vertical plane to perform torsion forging.

１：鍛造装置、１２：上型パンチ、２１：支持テーブル、２１Ａ：伝達ギヤ、２２：下型、３０：駆動力発生部、３１：インバータモータ、３２：出力ギヤ、４０:下型台、凹部:４０ａ、４２:油
1: forging device, 12: upper die punch, 21: support table, 21A: transmission gear, 22: lower die, 30: driving force generator, 31: inverter motor, 32: output gear, 40: lower die table, recess : 40a, 42: oil

Claims (3)

上型と下型とによりワークを後方押出し鍛造加工する鍛造装置であって、
回転駆動力を発生する駆動力発生部と、
前記上型の移動方向に対し直交する方向における前記下型の最大寸法よりも長い直径を有し、外周において前記回転駆動力を受けて回転し、当該回転により前記下型を回転させる回転部と、を備え、
前記下型は、底壁と、前記底壁から立設する環状の周壁と、を備えており、
前記下型には、前記上型の外径よりも内径が大きく構成されて当該上型が進入可能な成形凹部が、前記底壁の内底面と、前記周壁の内周面とから形成され、
前記成形凹部は、そこにセットされた前記ワークを前記上型で押圧することにより、前記ワークが有底筒状体に成形されるように構成され、
前記回転部は、前記下型の前記成形凹部にセットされた前記ワークが前記上型で前記下型に押しつけるようにプレスされた状態で前記上型が前記成形凹部内の下死点に到達しても一定時間後まで回転を続け、前記上型を離間させるまで、当該ワークに対し捻じり力を加える、鍛造装置。 A forging device that performs backward extrusion forging of a workpiece with an upper die and a lower die,
a driving force generator that generates rotational driving force;
a rotating part that has a diameter longer than the maximum dimension of the lower mold in a direction perpendicular to the movement direction of the upper mold, rotates on the outer periphery upon receiving the rotational driving force, and rotates the lower mold by the rotation; , and
The lower mold includes a bottom wall and an annular peripheral wall erected from the bottom wall,
In the lower mold, a molding recess having an inner diameter larger than the outer diameter of the upper mold and into which the upper mold can enter is formed from the inner bottom surface of the bottom wall and the inner peripheral surface of the peripheral wall,
The forming recess is configured such that the work set therein is pressed by the upper die to form the work into a bottomed cylindrical body,
The rotating part is configured such that the upper mold reaches a bottom dead center in the forming recess in a state in which the workpiece set in the forming recess of the lower mold is pressed against the lower mold by the upper die. A forging device that continues to rotate until a certain period of time has passed even if the forging device is used, and applies a twisting force to the work until the upper die is separated . 前記ワークは、マグネシウム合金からなり、
前記下型を２９０℃まで加熱するヒータを備えた請求項１に記載の鍛造装置。 The work is made of a magnesium alloy,
The forging apparatus according to claim 1, further comprising a heater for heating the lower die to 290°C. 前記成形凹部の深さは、当該成形凹部にセットされた前記ワークの高さよりも深い請求項１または請求項２に記載の鍛造装置。 3. The forging apparatus according to claim 1, wherein the depth of said forming recess is greater than the height of said workpiece set in said forming recess.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005000994A (en) 2003-05-16 2005-01-06 Susumu Mizunuma Twist-upsetting extruding method for material and its apparatus
JP2008194749A (en) 2007-02-08 2008-08-28 Susumu Mizunuma Twist extruding method with strain distribution control
JP2011084791A (en) 2009-10-16 2011-04-28 National Institute Of Advanced Industrial Science & Technology High-strength high-ductility magnesium alloy extruded material, and method for producing the same
CN102189706A (en) 2011-01-28 2011-09-21 南京理工大学 High-pressure shearing deformation method and device for tubular materials

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5415545B2 (en) * 1972-06-28 1979-06-15
JP3044513B2 (en) * 1993-05-24 2000-05-22 株式会社レイズエンジニアリング Forging equipment
JP3319891B2 (en) * 1994-10-18 2002-09-03 株式会社神戸製鋼所 Method for forming cup-shaped article having irregularities on bottom
JP2009172657A (en) * 2008-01-25 2009-08-06 National Institute Of Advanced Industrial & Technology High-performance magnesium alloy member and method of manufacturing it
CN101670415B (en) * 2009-10-15 2011-01-26 上海保捷汽车零部件锻压有限公司 Hydraulic pressure mold for ultra-long slender rod twisting and upsetting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005000994A (en) 2003-05-16 2005-01-06 Susumu Mizunuma Twist-upsetting extruding method for material and its apparatus
JP2008194749A (en) 2007-02-08 2008-08-28 Susumu Mizunuma Twist extruding method with strain distribution control
JP2011084791A (en) 2009-10-16 2011-04-28 National Institute Of Advanced Industrial Science & Technology High-strength high-ductility magnesium alloy extruded material, and method for producing the same
CN102189706A (en) 2011-01-28 2011-09-21 南京理工大学 High-pressure shearing deformation method and device for tubular materials

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