EP0602951A1 - Verfahren zum Formen eines Rades - Google Patents

Verfahren zum Formen eines Rades Download PDF

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Publication number
EP0602951A1
EP0602951A1 EP93310126A EP93310126A EP0602951A1 EP 0602951 A1 EP0602951 A1 EP 0602951A1 EP 93310126 A EP93310126 A EP 93310126A EP 93310126 A EP93310126 A EP 93310126A EP 0602951 A1 EP0602951 A1 EP 0602951A1
Authority
EP
European Patent Office
Prior art keywords
roller
shaping
rams
wheel
carving
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.)
Withdrawn
Application number
EP93310126A
Other languages
English (en)
French (fr)
Inventor
Shujiro C/O Rays Engineering Co. Ltd. Inatani
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.)
Rays Engineering Co Ltd
Original Assignee
Rays Engineering Co Ltd
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
Priority claimed from JP4339164A external-priority patent/JP2787399B2/ja
Priority claimed from JP4341995A external-priority patent/JP2787400B2/ja
Priority claimed from JP4348788A external-priority patent/JP2787401B2/ja
Application filed by Rays Engineering Co Ltd filed Critical Rays Engineering Co Ltd
Publication of EP0602951A1 publication Critical patent/EP0602951A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/28—Making machine elements wheels; discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/02—Making articles shaped as bodies of revolution discs; disc wheels
    • B21H1/04—Making articles shaped as bodies of revolution discs; disc wheels with rim, e.g. railways wheels or pulleys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
    • B21H1/10—Making articles shaped as bodies of revolution rings of restricted axial length rims for pneumatic tyres

Definitions

  • This invention relates to a method of shaping various types of wheels combining a disc part and a rim part which are made from materials rich in plastic deformation, for instance, aluminum alloys or magnesium alloys.
  • Automobile wheels or transmission pulleys are formed into a disc part and a peripheral rim part which is roughly perpendicular to the disc part in a unified body.
  • An automobile wheel is once formed into a dish-shaped body having a disc part and an annular part perpendicular to the disc part.
  • the annular part is further shaped into a drop center part (23), an outer rim part (22) and an inner rim part (24), as shown in Fig.1(a) and Fig.1(b).
  • a pulley is formed into a dish-shaped body with a central disc part and a peripheral annulus.
  • the annulus is further finished into a rim part which will wear a belt.
  • the dish-shaped prototype is generally formed by several steps of forging, for instance, from a block or a disc (an initial material) of a light metal alloy.
  • Prior method exhibited in Japanese Patent Publication No.3-2574 has produced a dish-shaped prototype to the final shape by forging except an annular part.
  • the peripheral annular part is then formed into a determined rim part by rolling formation.
  • the conventional method requires an extremely strong pressure of forging, while the initial material is being transformed into the dish-like body.
  • the dish-like prototype has a central disc part and a peripheral annulus perpendicular to the disc part.
  • the forging process must expand and bend forcibly the peripheral portion of the block or disc initial material toward the annular wall in rams.
  • the initial material resists against the deformation in the rams (alternatively called dice or molds).
  • the resistance against expansion is very large. Thus the forging demands an immense pressure.
  • the conventional method divides the deformation from an initial block to a dish-like body into several partial processes. Each partial process deforms a bit the material with a small pressure. The reduction of the pressure in partial processes decreases the size of forging machines.
  • An object of this invention is to provide a method with less numbers of steps of shaping a wheel from a metal, plastic material. Another object of this invention is to provide a method of shaping a wheel which can save the process time. A still further object of this invention is to provide a method which can reduce the number of rams.
  • the method of this invention comprises the steps of pressing an initial material (10) by a pair of metallic rams (301) and (302) facing each other in an axial direction for forming a disc part, extruding a peripheral portion out of the rams, and shaping a peripheral portion into a rim part by a unit of rollers which rotate relatively to the rams.
  • the initial material (10) is sandwiched by a pair of the rams (301) and (302).
  • the rams press the initial material in an axial direction.
  • the material is squashed into a disc part.
  • the peripheral, extra portion is extruded out of the rams (301) and (302).
  • the peripheral portion extruded over the boundary of the rams is pressed from the side directions by a unit of rollers which rotate relatively to the rams. Namely, if the pair of the rams do not rotate, the rollers are rotated. If the rams rotate, the rollers are at rest. In this case, the rollers can displace a little in a radial direction or an axial direction for adjustment. In any cases, the rollers can form rim parts by the relative rotation to the rams.
  • the pressure applied between the pair of the rams is comparatively small, while the rollers are shaping the rim parts.
  • the extruded portion is in contact only with the rollers.
  • the resistance against the extension of material is still smaller than the extension resistance of the prior one in which a pair of rams press the whole of a material between wide, curved surfaces in order to form a wheel at a blow.
  • This invention can reduce the force of the rams.
  • This invention is high productivity, that is , short time of formation and small number of metallic rams. This invention can produce wheels at a low cost.
  • Fig.1(a) is a sectional view of a wheel having a disc part and a rim part in a body.
  • Fig.1(b) is an enlarged sectional view of another wheel having a rim part alone.
  • Fig.2 is a sectional view of the apparatus for putting this invention into effect.
  • Fig.3 is a plan view of the set of rollers in the apparatus.
  • Fig.4 is a partially-sectional view of the material, the rams and the side roller at an early stage of forging.
  • Fig.5 is a partially-sectional view of the material, rams and roller at the final stage of forging.
  • Fig.6 is a sectional view of the material, rams and rollers at the process for forming the rim parts.
  • Fig.7 is a sectional view of the material having a wide central opening at a disc part, the rams and the rollers at an early step of forging.
  • Fig.8 is a sectional view of another apparatus for carrying out this invention.
  • Fig.9 is a sectional view of the material, rams and side roller of an example for shaping a V-belt pulley in a single process.
  • Fig. 10 is a sectional view of the material, rams and side roller of another example for producing a flat-belt pulley.
  • Fig. 11 is a sectional view of the material, rams and side roller of another example for integrating the processes of carving and formation of the outer rim into a single process.
  • Fig. 12 is a sectional view of the material, rams and side roller of an example for producing the dish-like prototype having an annulus around a disc part.
  • Fig.13 is a sectional view of the material, rams and side roller of an example for carving process at an early stage.
  • Fig. 14 is a sectional view of the material of the carving process for designating the locus of the carving.
  • Fig.15 is a partially-sectioned view of the material in carving, the ram and the side roller for carving an annulus from the dish-like body.
  • Fig. 16 is a sectional view of the material, rams and side roller of embodiment 1 in which a single process carries out carving and formation of an outer rim part at a stroke.
  • Embodiment 1 aims at producing an automobile wheel having a disc part and a rim part as one from a columnar initial material (10), as shown in Fig.1(a).
  • Fig.2 shows an apparatus for shaping such an automobile wheel.
  • the apparatus has a pair of rams (301) and (302) facing each other in the vertical direction.
  • the lower ram (301) is a fixed one.
  • the upper ram (302) is movable one which is displaced up and down.
  • the center line of the upper ram (302) coincides with the center line of the lower ram (301).
  • Three rollers (401), (402) and (403) are disposed at three points around the rams (301) and (302). The three rollers can displace in some directions by some distances.
  • the carving roller (401) carves an outer surface of a material block in halves.
  • the first shaping roller (402) shapes an outer half of a drop center (23) and an outer rim part (22).
  • the second shaping roller (403) forms an inner half of the drop center (23) and an inner rim part (24).
  • the upper ram (302) is maintained by a holder (5).
  • a frame (50) has a top deck (51).
  • the top deck (51) of the frame (50) supports an oil pressure apparatus (52).
  • the holder (5) is connected to an output shaft of the oil pressure apparatus (52).
  • the oil pressure apparatus (52) lifts up or presses down the upper ram (302).
  • the upper surface of the lower ram (301) is a first pressing surface (31) which is a negative of the outer side of the disc part (1) of a wheel.
  • the first pressing surface (31) is shaped after the disc part (1).
  • the disc part (1) will have concave or convex patterns.
  • the first pressing surface must have negative patterns similar to the concave or convex patterns of the disc part (1).
  • the relation of convex and concave portions is reverse between the first pressing surface (31) and the disc part (1).
  • a peripheral slanting surface (32) has the sectional shape which is a negative of a part of the drop center (23), the inner and outer surfaces of the outer rim (22).
  • the upper ram (302) has a second pressing surface (33) which is a negative of the inner side of the disc part (1).
  • a peripheral slanting surface (34) of the upper ram (302) has a section which is a negative of another part of the drop center (23), inner and outer surfaces of the inner rim part (24).
  • Three roller devices (41), (42) and (43) are disposed at three-fold symmetric positions around the interface between the upper ram (302) and the lower ram (301).
  • the lower ram (301) is founded on a fixed bed (61). Thus, the lower ram (301) is at rest in the embodiment.
  • the three roller devices are installed upon a rotary bed (62) which rotates concentrically around the static bed (61).
  • the first roller device (41) has a carving roller (401).
  • the second roller device (42) has a first shaping roller (402).
  • the third roller device (43) has a second shaping roller (403).
  • the three roller devices are arranged counterclockwise in the order of the first roller device (41), the second roller device (42) and the third roller device (43).
  • Each roller device has a roller and a bracket supporting the roller.
  • All the brackets can be displaced both in a radial direction and in a vertical direction. Furthermore, the bracket of the third roller device (43) can be still displaced in an angular direction in order to change the posture of the second shaping roller (403), in addition to the radial or vertical movement.
  • the lower portion of the rotary bed (62) is provided with a junction device of oil circuits which can rotate relatively to the rotary bed (62).
  • An example of the oil circuit junction device is constituted of an annular joint (63) coaxial to the rotary bed (62), several grooves formed on an outer, lower surface of the rotary bed (62) and the same number of grooves shaped on an inner surface of the annular joint (63).
  • Each of the grooves of the rotary bed (62) coincides with some one of the grooves of the annular joint (63).
  • An oil pressure source (65) supplies pressurized oil via a controlling valve unit (64) to oil pressure circuits in the annular joint (63) and the rotary bed (62).
  • the controlling valve unit (64) contains plural controlling valves. Each of the oil circuits is independently adjusted by some controlling valves. For example, a microcomputer determines the positions of the brackets of the rollers and the posture of the second shaping roller (403) by adjusting the opening degrees of the controlling valves.
  • the rotary bed (62) is rotatably supported by the fixed bed (61).
  • a wide bevel gear is formed around the rotary bed (62).
  • Another small bevel gear is fitted to an output shaft of a reduction gear (67).
  • a driving motor (66) rotates an input shaft of the reduction gear (67).
  • the wide bevel gear meshes with the smaller bevel gear.
  • the driving motor (66) rotates the rotary bed (62) at a reduced rate.
  • Fig.2 to Fig.6 demonstrate how to produce a wheel from an initial material (10).
  • a columnar, initial material (10) is inserted into a space between the lower ram (301) and the upper ram (302), as shown in Fig.2.
  • the oil pressure apparatus (52) presses down the ram (302) against the initial material.
  • the initial material is squashed between the upper ram (302) and the lower ram (301).
  • the initial material is shaped into a dish-like body after the first pressing surface (31) and the second pressing surface (33).
  • the upper patterns of the dish-like body are a negative of the second pressing plate (33) of the upper ram (302).
  • the bottom pattern of the dish-like body is a negative of the first pressing surface (31).
  • An extra portion is extended outward out of the interface of the rams (301) and (302).
  • the rotary bed is rotating then.
  • the carving roller (401) is pressed to the extended material.
  • a pair of symmetric, conically-curved surfaces (44) and (45) are formed around the carving roller (401).
  • the boundary of two conical surfaces is a sharp, circular edge.
  • the carving roller (401) resembles a bead of an abacus.
  • the sharp edge of the carving roller (401) thrusts the extended material.
  • the bracket (41) of the carving roller (401) revolves around the center line of the rams (301) and (302). Since the carving roller (401) is a free wheel, the carving roller (401) rotates around the axis of the bracket at the same line velocity of revolution around the center line.
  • the sharp edge divides the extended material extruded from the interface of the rams (301) and (302) into halves. As the upper ram and the lower ram press and expand the material, the extended parts are pushed upward or downward by the carving roller (401).
  • the intermediate form has a disc part which is the negative of the first pressing surface (31) of the lower ram (301) and the second pressing surface (33) of the upper ram (302) and an annular part consisting of an outer bend (25) and an inner bend (26).
  • the outer bend (25) is a part which will be shaped into a part of a drop center (23) and an outer rim (22).
  • the inner bend (26) is a part which will be shaped into another part of the drop center (23) and an inner rim (24).
  • the carving roller (401) recedes from the intermediate form.
  • the first shaping roller (402) comes into contact to the outer bend (25).
  • the first shaping roller (402) shapes the outer bend (25) into the part of the drop center (23) and the outer rim (22).
  • the section of the first shaping roller (402) is a negative of the section of the outer surface of the drop center (23) and the outer rim (22).
  • the section of the lower ram (301) is similarly a negative of the section of the inner surface of the drop center (23) and the outer rim (22). Therefore, the drop center (23) and the outer rim (22) are formed by the rolling of the first shaping roller (402) on the outer bend (25).
  • the second shaping roller (403) comes into contact with the inner bend (26) either in coincidence with or posterior to the formation of the outer rim (22).
  • the third roller device (43) having the second shaping roller (403) is a spinning roller device which adjusts the posture of the second shaping roller (403) and displaces the second shaping roller up and down.
  • the second shaping roller (403) presses, extends and shapes the inner bend (26) into a thin conical part which is a negative of the peripheral slanting surface (34) of the upper ram (302).
  • the third roller device (43) makes a part of the drop center (23) and the inner rim (24).
  • the second shaping roller (403) recedes and separates from the inner rim (24).
  • a wheel having a disc part (1) and rim parts (2) is produced around and between the rams (301) and (302).
  • the fixed bed (61) is provided with a knockout device (68) at the center.
  • An output shaft of the knockout device (68) penetrates a top hole of the lower ram (301).
  • the output shaft has a plate (69) which has the same shape as the disc part (1) of the wheel has. The wheel can be gotten rid of above from the ram (301) by projecting the output shaft of the knockout device (68).
  • the wheel is removed from the shaping apparatus.
  • the output shaft is restored to the initial position.
  • Another initial material is supplied between the upper ram (302) and the lower ram (301). Then another cycle of shaping of another wheel will be repeated.
  • the wheel shaped by the apparatus will be further processed by finishing punching, flash elimination, finishing cutting and finishing grinding.
  • the volume of the initial material must be equalized to the volume of the wheel which should be produced.
  • the carving roller (401) can be displaced both in the vertical direction and in the horizontal direction.
  • the vertical displacement of the carving roller (401) changes the allotment of the material to the outer bend (25) and the inner bend (26).
  • the volume of the bends is different, because the thicknesses differ with each other. If the carving roller (401) is settled at a higher level, the inner bend (26) becomes thinner and the outer bend (25) becomes thicker to the contrary.
  • the volume ratio of the outer bend (25) to the inner bend (26) can be properly adjusted by settling the outer bend thicker than the inner bend (26).
  • the disc part (1) has been formed to a shape which coincides with the disc of a wheel.
  • Another disc part (1) as shown in Fig.l(b) is also available.
  • the disc has a large opening and a narrow rim flange (21).
  • An individual disc will be connected to the rim flange (21).
  • the first pressing surface (31) of the lower ram (301) should have a negative shape of the outer surface of the rim flange (21).
  • the second pressing surface (33) of the upper ram (302) has a negative shape of the inner surface of the rim flange (21).
  • Fig.7 shows the state in which the upper ram (302) and the carving roller (401) have formed the intermediate body of the version.
  • the upper ram (302) is positioned at the lowest level.
  • the carving roller (401) divides the bends (25) and (26).
  • the rams (301) and (302) sandwich a peripheral rim flange (21) and a central thin part (93) which will be eliminated afterward.
  • the apparatus produces a partial wheel which consists only of a rim part and a rim flange in a body.
  • the central thin part is eliminated by punching, when the partial wheel has been removed out of the rams (301) and (302).
  • Many bolt holes are perforated at a destined interval on the rim flange (21) simultaneous with the punching.
  • the partial wheel is made up to a complete wheel by being coupled to an individual disc with bolts.
  • Embodiment 1 rotates the roller devices (41), (42) and (43) around the fixed rams (301) and (302). What is important is the relative rotation between the rams and the rollers. Otherwise, it is possible to fix roller devices and rotate the rams (301) and (302) at the same angular velocity.
  • the top deck (51) of the frame (50) suspends the upper ram (301).
  • the fixed bed (61) sustains the lower ram (302).
  • a cylindrical holder (57) hanging from the top deck (51) has an opening at the bottom.
  • a supporting plate (59) is rotatably equipped at the bottom opening of the holder (57).
  • the upper ram (301) is fixed to the bottom of the supporting plate (59).
  • the holder(57) is fitted to an output shaft of the oil pressure device (52).
  • Guide posts fixed to the holder (57) penetrate holes of the deck (51).
  • the oil pressure device can lift or sink the holder (57).
  • the supporting plate (59) can rotate with regard to the holder (57).
  • a worm wheel (58) is fitted around the supporting plate (59).
  • the holder (57) has a driving motor (not shown in the figures) with an output shaft (54) for rotating the ram (301) and a worm (53) fitted to the output shaft (54).
  • the driving motor rotates the worm (54)
  • the worm wheel and the ram (301) revolve at a reduced velocity. Therefore the upper ram (301) is rotated by the driving motor and the worm gear device and is lifted up or down by the oil pressure device (52).
  • the lower ram (302) is fixed on a sustaining plate (501) which is furnished in a holder (65).
  • the holder (65) is laid on the fixed bed (61).
  • the sustaining plate (501) has the worm wheel (58) around the periphery.
  • a driving motor (not shown in the figures) with an output shaft (54) is installed in the holder (65) like the upper ram.
  • a worm (53) is fixed to the output shaft (54).
  • the worm (53) meshes with the worm wheel (58) around the sustaining plate (59).
  • the angular velocity of the lower ram (302) is equal to that of the upper ram (301).
  • a first roller device (41) having a carving roller (401) is furnished on a side wall of the frame (50). Oil pressure devices can displace the carving roller (401) both in the horizontal direction and in the vertical direction.
  • a roller device (7) having a shaping roller (40) is installed on another side wall of the frame (50). Similarly, the oil pressure devices can displace the shaping roller (40) both in the horizontal direction and in the vertical direction. Another oil pressure device can adjust the posture of the shaping roller.
  • the roller device (7) is a conventional spinning roller device.
  • An initial material (10) is laid between the upper ram (301) and the lower ram (302).
  • the upper ram (301) is lowered by the oil pressure device (52).
  • the rams (301) and (302) press and expand the initial material (10).
  • the extruded portion out of the rams (302) and (301) is divided into two parts by the first roller device (41).
  • the roller device (7) presses and shapes the rim parts (2) by the spinning roll process.
  • This invention has several versions in addition to the embodiments mentioned before.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
EP93310126A 1992-12-18 1993-12-15 Verfahren zum Formen eines Rades Withdrawn EP0602951A1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP4339164A JP2787399B2 (ja) 1992-12-18 1992-12-18 ホイールのリム部の成型方法及びこれを利用したホイールの製造方法
JP339164/92 1992-12-18
JP4341995A JP2787400B2 (ja) 1992-12-22 1992-12-22 ホイールのリム部の成型方法及びこれを利用したホイールの製造方法
JP341995/92 1992-12-22
JP348788/92 1992-12-28
JP4348788A JP2787401B2 (ja) 1992-12-28 1992-12-28 皿状ディスクの成型方法

Publications (1)

Publication Number Publication Date
EP0602951A1 true EP0602951A1 (de) 1994-06-22

Family

ID=27340912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93310126A Withdrawn EP0602951A1 (de) 1992-12-18 1993-12-15 Verfahren zum Formen eines Rades

Country Status (4)

Country Link
EP (1) EP0602951A1 (de)
KR (1) KR0127877B1 (de)
CN (1) CN1091681A (de)
TW (1) TW235936B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652061A1 (de) * 1993-11-10 1995-05-10 Rays Engineering Co.,Ltd. Rotations-Schmiedevorrichtung
CN115673100A (zh) * 2022-10-26 2023-02-03 合肥得千利新能源材料有限公司 一种新能源锂电池生产制造用成型装置

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* Cited by examiner, † Cited by third party
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KR100327129B1 (ko) * 1999-10-07 2002-03-13 이성재 레버형 링 로울링 장치
DE102012105958A1 (de) * 2012-07-04 2014-01-23 Thyssenkrupp Steel Europe Ag Verfahren zur Herstellung eines Verbindungselements zur Übertragung von Drehbewegungen
EP3278894B1 (de) * 2016-08-02 2018-07-04 Leifeld Metal Spinning AG Drückwalzmaschine und umformverfahren zum herstellen eines rades
CN107159767A (zh) * 2017-07-13 2017-09-15 芜湖西诺普汽车零部件科技有限公司 一种电梯轮加工用旋压工装
CN109985953A (zh) * 2017-12-31 2019-07-09 天津市越创科技有限责任公司 一种用于喇叭口工件加工的装置
JP7181079B2 (ja) * 2018-12-26 2022-11-30 日本スピンドル製造株式会社 スピニング加工装置、スピニング加工方法、加工ローラ
JP1671539S (de) 2019-09-09 2020-11-02

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191116794A (en) * 1911-07-21 1912-07-18 Midland Railway Carriage And W Improvements relating to the Production of Wheels and similar Circular or Disc-like Bodies.
FR1550081A (de) * 1966-05-05 1968-12-20
US3672021A (en) * 1969-02-20 1972-06-27 Fuchs Otto Method of making wheels
FR2361174A1 (fr) * 1976-08-12 1978-03-10 Hoesch Werke Ag Procede de forgeage de pieces en forme de roue
GB2055065A (en) * 1979-06-27 1981-02-25 Percival Barker K Method and apparatus for formation of rotary or curved work piece profile
FR2677279A1 (fr) * 1991-06-06 1992-12-11 Aubecq Auxi Sa Procede de fabrication d'une poulie et dispositif pour sa mise en óoeuvre.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191116794A (en) * 1911-07-21 1912-07-18 Midland Railway Carriage And W Improvements relating to the Production of Wheels and similar Circular or Disc-like Bodies.
FR1550081A (de) * 1966-05-05 1968-12-20
US3672021A (en) * 1969-02-20 1972-06-27 Fuchs Otto Method of making wheels
FR2361174A1 (fr) * 1976-08-12 1978-03-10 Hoesch Werke Ag Procede de forgeage de pieces en forme de roue
GB2055065A (en) * 1979-06-27 1981-02-25 Percival Barker K Method and apparatus for formation of rotary or curved work piece profile
FR2677279A1 (fr) * 1991-06-06 1992-12-11 Aubecq Auxi Sa Procede de fabrication d'une poulie et dispositif pour sa mise en óoeuvre.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652061A1 (de) * 1993-11-10 1995-05-10 Rays Engineering Co.,Ltd. Rotations-Schmiedevorrichtung
US5531088A (en) * 1993-11-10 1996-07-02 Rays Engineering Co., Ltd. Rotary forging apparatus
CN115673100A (zh) * 2022-10-26 2023-02-03 合肥得千利新能源材料有限公司 一种新能源锂电池生产制造用成型装置
CN115673100B (zh) * 2022-10-26 2023-08-11 北京蓄力赛新能源科技有限公司 一种新能源锂电池生产制造用成型装置

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Publication number Publication date
KR0127877B1 (ko) 1998-04-16
KR940013662A (ko) 1994-07-15
CN1091681A (zh) 1994-09-07
TW235936B (de) 1994-12-11

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