WO2019132000A1 - Procédé de formation à la presse d'une pièce annulaire - Google Patents

Procédé de formation à la presse d'une pièce annulaire Download PDF

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Publication number
WO2019132000A1
WO2019132000A1 PCT/JP2018/048447 JP2018048447W WO2019132000A1 WO 2019132000 A1 WO2019132000 A1 WO 2019132000A1 JP 2018048447 W JP2018048447 W JP 2018048447W WO 2019132000 A1 WO2019132000 A1 WO 2019132000A1
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WO
WIPO (PCT)
Prior art keywords
ironing
overhang
punch
work
stage
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.)
Ceased
Application number
PCT/JP2018/048447
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English (en)
Japanese (ja)
Inventor
智行 望月
正道 三輪
俊之 市川
正明 大庭
正英 前島
加田　修
伸麻 吉川
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.)
Nippon Steel Corp
Unipres Corp
Original Assignee
Nippon Steel Corp
Unipres 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 Nippon Steel Corp, Unipres Corp filed Critical Nippon Steel Corp
Priority to JP2019562502A priority Critical patent/JP7230828B2/ja
Publication of WO2019132000A1 publication Critical patent/WO2019132000A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/28—Deep-drawing of cylindrical articles using consecutive dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/30—Deep-drawing to finish articles formed by deep-drawing

Definitions

  • the present invention relates to a method of press forming an annular part such as a carrier base of an automobile transmission.
  • an automobile transmission using a planetary gear is used.
  • the planetary gear is provided with a plurality of pinions, a sun gear and a ring gear meshing with inner and outer circumferences of the plurality of pinions, and the plurality of pinions are carrier parts that rotatably support the carrier (carrier, carrier base ) Is provided.
  • the shifting operation by the planetary gear brakes one of the three rotating elements of the carrier, the sun gear and the ring gear, and one rotating element of the remaining two rotating elements on the input side and the other rotating It is done by connecting the elements to the output side.
  • the carrier is rotatably attached to a support such as a housing, but the support of the carrier's planetary gear is in a plate shape, and a boss is formed for attachment to the support such as a housing In many cases, the bosses may extend on both sides from the plate-like attachment for the planet gears.
  • the present invention is to reduce the material cost and realize the shortening of the production tact by forming an annular part in an automobile transmission such as a carrier by pressing from a single steel plate. To aim.
  • the press-forming method of an annular part having a substantially T-shaped cross-section at the connecting portion between the disc portion and the projecting portion is as follows.
  • Forming one side of the work into a cylindrical first overhang by performing burring on a disc-shaped work consisting of a single steel plate on the inner or outer diameter side; While holding the work up and down, the first overhanging portion is ironed, and the flow of the meat at that time causes the annular portion to form the second overhanging portion in the direction opposite to the first overhanging portion with respect to the work holding portion.
  • the above-mentioned drawing process is At least the first overhanging portion while holding the work up and down while holding the work up and down while holding the work up and down in the first stage of drawing the meat toward the base side of the first overhanging portion by squeezing the inner diameter of the first overhanging portion It consists of at least two stages of ironing with a second stage of ironing at the side to which the meat is added.
  • ironing is performed over the entire length of the first overhang obtained by burring using a cylindrical punch and die of uniform diameter, and the second stage In the ironing process, using a stepped cylindrical die and a punch, while constraining the end of the first overhang obtained by the first stage ironing, the restraint of the first overhang is performed. Further ironing of the first overhanging portion can be performed at a site separated from the end, and the opposite side can be formed into a second tubular portion.
  • an annular part having cylindrical parts on both sides by only pressing using burring from a single steel plate and multistage ironing, and thus achieving weight reduction.
  • the material cost is reduced and the production tact is shortened, thereby achieving a large cost reduction as a total.
  • there is no structural defect by the combined use of burring and multi-step ironing, and high rigidity can be ensured even in the T cross-sectional shape part, and in particular, when annular parts are adopted for automobile parts such as carriers
  • the high rigidity makes it advantageous in terms of strength as compared with a separate structure such as a welding or fitting method.
  • FIG. 1 is a cross-sectional view, at one side of a central axis, of a relevant portion of an automobile transmission provided with a carrier base in which the tubular part of the present invention is used.
  • FIG. 2 is a schematic cross-sectional view showing the steps from (A) to (D) of the press-forming process of the first embodiment of the tubular part for the carrier base of FIG.
  • FIG. 3 is a schematic cross-sectional view showing the steps (E) to (G) following the step of FIG.
  • FIG. 4 is a schematic cross-sectional view showing main three steps (1) (2) (3) of the second embodiment of the present invention.
  • FIG. 5 is a schematic sectional view showing main three steps (1) (2) (3) of the third embodiment of the present invention.
  • FIG. 6 is a schematic cross-sectional view showing main three steps (1) (2) (3) of the fourth embodiment of the present invention.
  • FIG. 1 is a schematic cross-sectional view showing an example of the arrangement of the carrier base in the automobile transmission. Represented by M.
  • This automobile transmission is structurally similar to that described in Patent Document 4, and the carrier base 10 is employed in the third-stage transmission mechanism of the transmission mechanism having a three-stage configuration.
  • the carrier base 10 is a press-formed product from a single steel plate, and the annular plate portion 12 and a boss portion extending on both sides in the axial direction of the annular plate portion 12 at the inner peripheral portion of the annular plate portion 12
  • the cross-sectional shape of the connecting portion between the annular plate portion 12 and the boss portion 14 is T-shaped.
  • the boss portion 14 press-molds a first cylindrical overhang portion extending to one side in the axial direction by burring a material steel plate, and the inner portion with respect to the first cylindrical overhang portion. It is obtained by press-forming a second cylindrical overhanging portion extending to the opposite side by winding the periphery, and thereafter performing finish processing such as cutting, and the boss portion 14 is an integral press for the annular plate portion 12 It becomes a forming part.
  • the boss 14 of the carrier base 10 is rotatably attached to the boss 22-1 of the cover 22.
  • the transmission mechanism shown in FIG. 1 meshes with the pinion 16 and the pinion 16 provided on the inner diameter side with the pinion 16, which is circumferentially separated from the carrier base 10 so as to be rotatable about the respective rotation shafts 15.
  • a ring gear 20 meshing with the pinion 16 on the outer diameter side, thereby forming a planetary gear mechanism consisting of three rotating elements, which is accommodated in the transmission cover 22.
  • the sun gear 18 is connected to the input shaft 24 from the engine side.
  • the input shaft 24 is rotatable relative to the transmission cover 22.
  • Reference numeral 28 denotes a clutch drum, and the ring gear 20 is formed on the inner peripheral portion of the plate-like portion clutch drum 28.
  • the clutch drum 28 is provided with a disc-shaped portion 28-1 and a bearing 29 is disposed between the disc-shaped portion 28-1 of the clutch drum 28 and the transmission cover 22.
  • the brake 30 is shown in a simplified manner, it has a drive plate 32 and a driven plate 34 in the shape of an annular disk, and as is known, the drive plate 32 has teeth at equal intervals in the circumferential direction on the inner periphery.
  • the drive plate 32 is rotated in the rotational direction by engaging the groove portions 28-1 axially extending on the outer periphery of the clutch drum 28 and equally spaced in the circumferential direction. It is integral with the drum 28 but is slidable in the longitudinal direction.
  • the driven plate 34 has teeth at equal intervals in the circumferential direction on the outer periphery, and the teeth extend in the axial direction on the inner periphery of the transmission cover 22, respectively in the circumferential direction, etc.
  • the driven plate 34 is integral with the transmission cover 22 in the rotational direction, but is slidable in the longitudinal direction by engaging the groove 22-2 spaced apart from the space.
  • the annular piston 36 is provided in the annular recess 22-3 of the transmission cover 22, and the left-handed position in FIG. 1 is normally taken by the annular elastic members 38A and 38B on the inner and outer peripheries. Smooth rotation can be performed by the oil film between them.
  • the annular piston 36 is moved to the right against the elastic force of the elastic members 38A and 38B, and the drive plate 32 and the driven plate 34 are engaged. Be done. Therefore, the clutch drum 28 is braked by the transmission cover 22.
  • the pinion 16 of the planetary gear mechanism is connected by a carrier plate 37 to an output shaft (not shown), that is, the wheel side.
  • Patent Document 1 in addition to the planetary gear type transmission mechanism of FIG. 1, a transmission mechanism using another planetary gear is provided, and a brake or a clutch different from the brake 30 is provided to engage each brake or clutch Alternatively, the desired gear ratio or forward or reverse can be obtained by non-engagement.
  • the brake 30 in the non-engaged state, the clutch drum 28 rotates freely because it is not restrained, and in this case does not participate in the transmission ratio, and in the engaged state the clutch drum 28 is braked.
  • the rotation of the carrier base 10, that is, the carrier plate 37 is controlled.
  • the carrier base 10 is an installation place of a rotation speed sensor (not shown) for transmission control. Further, since the carrier base 10 receives a thrust force during the operation of the transmission, thrust bearings 42 and 44 are disposed on both sides of the annular plate 12 at the connection with the boss 14. The sun gear side of the boss portion 14 presents a somewhat thin portion 14-1 toward the sun gear.
  • the annular plate portion 12 and the boss portion 14 are integrated by forming the entire carrier base 10 as a sintered product, or in the case of press forming from a steel plate, the annular plate portion 12 And the boss portion 14 are separately manufactured and integrated by welding or the like.
  • a sintered product it involves complicated steps such as raw material mixing, molding, and sintering, and the production tact is long, resulting in a considerable increase in cost.
  • the production tact is long, resulting in a considerable increase in cost.
  • it also starts a joining process when starting from another part and integrating by welding etc. this will also lead to a cost increase.
  • the carrier base 10 is formed from a single steel plate by pressing without forming material defects, which will be described below.
  • FIGS. 2 and 3 illustrate the press forming process of the cylindrical part of the present invention from a single steel plate in the first embodiment, and only one side of the central axis L is shown for the sake of clarity.
  • the black arrows indicate the main pressing force of the press (the pressing force by the crank in the case of a mechanical press) along with the direction of its application
  • the white arrows indicate the force of the die cushion (spring force) Is displayed along with its direction of addition.
  • FIG. 2A and 2B show one side of the center line L of the burring apparatus in the press line, and in FIG. 2A, the work W is made of one circular steel plate (only one side of the center line L is shown), It is shown in a state in which punched circular openings W 0.
  • the workpiece W is mounted on the lifter 52 at its outer peripheral portion, and the annular die 54 having a straight inner peripheral surface connected to a pressing mechanism (not shown) is opposed to the lifter 52 via the outer peripheral portion of the workpiece W doing.
  • the punch 55 whose outer peripheral surface is straight is vertically fixed to a die base (not shown).
  • the workpiece W in FIG. 2A is located on the transfer line.
  • the die 54 is lowered due to burring, and the work W is lowered under the die cushion while the outer peripheral portion is held between the die 54 and the lifter 52, and the work W is lowered by the punch 55.
  • the inner peripheral portion is burring between the die 54 and the punch 55, the tubular projecting portion W 1 to the work side (upper side in the drawing) at the center of the workpiece centerline L and coaxial workpiece W is formed.
  • the die 54 is raised, the lifter 52 by the die cushion is raised to the position of FIG. 2 (A), the workpiece W is return position on the transfer line.
  • FIGS. 2 (C) and 2 (D) show a first stage ironing apparatus adjacent to the burring apparatus.
  • the workpiece W obtained by forming the projecting portion W 1 by burring is held by the force of the die cushion between the lifter 56 and the work holding 58 on the transfer line.
  • the punch 60 connected to the pressing mechanism is located at the upper side.
  • the punch 60 has an outer diameter somewhat larger than the inner diameter of the cylindrical extension W 1 of the workpiece W obtained by the burring, and the outer diameter of the punch 60 and the inner diameter of the cylindrical extension W 1 of the workpiece W The difference in As shown in FIG.
  • the cylindrical projecting portion W 1 of the inner diameter portion of the workpiece W by the punch 60 descends receives ironing over the entire length, wall thickness as the tubular projecting portion W 2 becomes thin, I squeezed a minute flesh, by plastic flow, toward the lifter 56 side as W 3 (annular recessed portion 56-1 of the lifter 56) is closer to the lower part of FIG.
  • the punch 60 returns to the top dead center position (C), and the work W is raised to the transfer line by the force of the die cushion.
  • FIGS. 3E and 3F show a second stage ironing device adjacent to the first stage ironing device.
  • the outer peripheral part of the work W of FIG. 2 (D) obtained in the first stage ironing process is held between the lifter 62 and the work presser 64 by the force of the die cushion on the transfer line. .
  • the punch 65 connected to the pressing mechanism is retracted upward.
  • Punch 65 has somewhat larger outer diameter than the cylindrical projecting portion W 2 of the inner diameter of the workpiece W obtained by ironing processing of the first stage, the tubular projecting portion of the outer diameter of the workpiece W of the punch 65 The difference from the inner diameter of W 2 is the ironing cost. As shown in FIG.
  • the tubular projecting portion W 2 of the inner diameter of the workpiece W by the punch 65 descends undergoing ironing over the entire length, flow occurs in meat downwards in the figure, the tubular projecting portion
  • the wall thickness is reduced as in W 4 , and the thickened portion is plastically flowed toward the annular recess 62-1 of the lifter 62 by plastic flow, and is opposite to the cylindrical overhang portion W 4 (see FIG. molding is carried out below) to the work center line L coaxial cylindrical projecting portion W 5.
  • the punch 65 returns to the top dead center position (E), and the work W is raised to the transfer line by the force of the die cushion.
  • FIG. 3 (G) shows a tubular part which is a work W formed by pressing a single steel plate as described above, and the first disc in which the disc portion 66 and the center line L on both sides thereof are in common. It comprises an overhang portion 67 (W 4 ) and a second overhang portion 68 (W 5 ). By subjecting this cylindrical part to a necessary finishing process such as cutting, the carrier base 10 of FIG. 1 is obtained.
  • the ironing process after burring uses a cylindrical punch and die of uniform diameter, the inner diameter of the overhanging portion by the burring is ironed, and the first stage ironing process of flowing the meat toward the root side
  • the second stage ironing step is carried out in which the overhanging portion is formed on the opposite side by changing the diameter of the punch for the entire length by changing the diameter of the punch and forming the overhanging portion formed by the first stage ironing process, but it is smooth It is possible to add an ironing process (one or more stages) with an intermediate diameter punch and die in the first stage ironing process and the second stage ironing process if necessary for the flow of meat .
  • FIG. 4 shows a second embodiment of the press-forming method of the present invention. Also in this embodiment, bosses extending on both sides in the axial direction from a single steel plate can be press-formed. As in the first embodiment (FIG. 2 and FIG. 3), it is at least three steps of the burring, the first stage ironing process and the second stage ironing process, and is simplified. Steps corresponding to or related to FIG. 2 and (B), (D), and (F) in the embodiment are shown by (1), (2), and (3), respectively. In this second embodiment, cylindrical dies and punches of uniform diameter are used as in the first embodiment.
  • FIG. 5 shows a third embodiment.
  • This embodiment is the same as the first embodiment in the burring process (1) and the first stage ironing process (2), and uses cylindrical dies and punches of uniform diameter, and the workpiece W ′ ′ is used in the burring process. Is pressed by the die 54 against the lifter 52, whereby the overhang portion W ′ ′ 1 is formed on the inner periphery of the work W ′ ′ by the punch 55.
  • the work W ′ ′ is lifted 56 and work presser 58 and While holding at the same time, ironing of the overhang W ′ ′ 1 is performed by the punch 60 to form a thin-walled cylindrical overhang W ′ ′ 2 and also brings meat like W ′ ′ 3 to the root side.
  • Second stage The ironing process (3) is different from the first embodiment, and the die hole is a stepped cylindrical die 86 and a central stepped punch 88 (upright fixed to a die base not shown) is used.
  • the attached die 86 is The lower end inner periphery of the inner diameter is provided with an enlarged diameter portion 86-1, and the punch 88 is provided with a reduced diameter portion 88-1 at the tip end.
  • the overhanging end face of the overhanging portion W ′ ′ 2 is abutted (restrained) on the shoulder portion (shoulder portion formed by the annular groove 86-1) of the die 86, and the thickness of the upper portion of the overhanging portion W ′ ′ 3 is substantially thick
  • the inner diameter portion of the lower portion of the overhang W ′ ′ 2 is squeezed by the enlarged diameter portion 88-2 of the punch 88 by the lowering of the work by the lowering of the die 86, the opposite side is not restricted.
  • the flow of meat to the (downward in the figure) occurs, and the side opposite to the overhang W ′ ′ 3 is formed into a cylindrical overhang W ′ ′ 4.
  • the second stage ironing is the inner circumference. Since the overhanging portions W ′ ′ 3 and W ′ ′ 4 after ironing are not the same thickness (the inner circumferential surface is formed with a step) because they are partial rather than full length, the overhanging portions W ′ ′ 3 and W ′ ′ Since 4 and 5 are cylindrically extended on both sides in the axial direction of the work, the extended portions W ′ ′ 3 and W ′ ′ 4 are It can be said that the cross section in the connecting portion is substantially T-shaped.
  • the overhanging portion W ′ ′ 3 since the upper end side of the overhanging portion W ′ ′ 3 is restrained during the second stage of ironing, the overhanging portion to the opposite side As in the first and second embodiments, it is possible to obtain a reliable meat flow for forming W ′ ′ 4. Also in this embodiment, if necessary, the second step of the first stage ironing process is also possible. Also in the staged ironing process, it is possible to add an ironing process (one stage or multiple stages) with a punch and die of an intermediate diameter.
  • FIG. 6 shows a fourth embodiment, in which overhang portions having different thicknesses on both sides of the outer periphery of the work are formed by ironing.
  • This embodiment is the same as the second embodiment (FIG. 4) with respect to the burring process (1) and the first stage ironing process (2), and using a cylindrical die and punch of uniform diameter, the burring process in "'by pressing toward the lifter 69 by the punch 70 in the center of the workpiece W by an annular die 72"' workpiece W forming the tubular projecting portion W " '1 to the central axis L coaxial with the outer periphery side.
  • the outer diameter portion of the overhanging portion W ′ ′ ′ 1 is ironed by the annular punch 78 while the workpiece W ′ ′ ′ is held by the lifter 74 and the workpiece presser 76, and the thinned overhang is obtained. While making it part W ′ ′ 2 and bringing meat to the root side (downward in the figure) like W ′ ′ 3.
  • the second stage of ironing (3) is the third embodiment of ironing (FIG.
  • the die hole has a stepped cylindrical ring Lee 90 and (upright fixed to a not-shown die base), an outer peripheral surface and the punch 92 with a cylindrical stage is used, "'by pressing by a punch 92, overhang W"' workpiece W on the lifter 94 2
  • the upper end portion of the lower end of the punch 92 flows (flows) into the annular cavity between the outer diameter reduced diameter portion 92-1 at the lower end of the punch 92 and the inner diameter enlarged diameter portion 90-1 at the upper end of the die 90 to fill the cavity and
  • the end face of the part W ′ ′ ′ 2 is abutted and restrained by the lower end of the punch 92 (a shoulder 92-3 connected to the reduced diameter part 92-1).
  • the outer diameter portion of the lower portion of the overhang portion W ′ ′ ′ 2 is squeezed by the enlarged diameter portion 90-2 of the fixing die 90 by the descent of the work due to the descent of the punch 92, the unrestrained downward meat is Flow occurs to form an overhang W "' 4 in the opposite direction to the overhang W"' 3. Therefore, also in this embodiment, the post-stroke overhang W "' 3 similar to the embodiment of FIG.
  • the wall thickness of the workpiece W ′ ′ 4 is not the same as the wall thickness of the workpiece W ′ ′ 4
  • the cross-section has a substantially T-shaped configuration because the workpiece W ′ ′ ′ has overhangs on both sides in the axial direction.
  • ironing with an intermediate diameter punch and die in the first stage ironing and the second stage ironing one stage Or, it is possible to add multiple stages).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Retarders (AREA)
  • Forging (AREA)

Abstract

La présente invention concerne un procédé de formation à la presse d'une pièce annulaire ayant un bossage d'une forme de section transversale en T, et un but de la présente invention est de réduire le coût du matériau et de raccourcir le temps takt de production par formage par pressage à partir d'une seule plaque d'acier. Tout en maintenant une pièce en forme de disque W constituée d'une seule plaque d'acier et ayant un trou central sous un coussin de serre-flanc, le trou central de la pièce W est ébavuré avec un poinçon pour former un côté de la pièce à travailler dans une partie en surplomb cylindrique. Un étirage de première étape est réalisé par étirage de la partie en en surplomb avec un poinçon, tout en maintenant l'ouvrage W après ébavurage sous l'amortissement de matrice, et épaississement en direction de la racine W3 de la partie en surplomb W2 après étirage. Ensuite, la partie en surplomb W2 après étirage est ensuite étirée avec un poinçon 65, tout en maintenant l'ouvrage sous l'amortissement de matrice, ce qui permet de former une seconde partie en surplomb W5 sur le côté opposé de l'ouvrage et d'obtenir une partie de support ayant une partie de bossage d'une section transversale en forme de T.
PCT/JP2018/048447 2017-12-28 2018-12-28 Procédé de formation à la presse d'une pièce annulaire Ceased WO2019132000A1 (fr)

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JP2019562502A JP7230828B2 (ja) 2017-12-28 2018-12-28 環状部品のプレス成形方法

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JP2017-253991 2017-12-28
JP2017253991 2017-12-28

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112222294A (zh) * 2020-09-22 2021-01-15 厦门捷讯传动轮机械有限公司 一种料片内孔双向翻边成型工艺
CN112916783A (zh) * 2021-02-07 2021-06-08 哈尔滨工业大学 一种带有局部孔增厚特征的板锻造成形模具装置及工艺方法
JP2023092420A (ja) * 2021-12-21 2023-07-03 株式会社三五 フランジ部及び環状凸部が管端に一体的に形成された筒状体の成形方法

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Publication number Priority date Publication date Assignee Title
JPS6087932A (ja) * 1983-10-19 1985-05-17 Riken Kaki Kogyo Kk 板金素材による軸受部材の構成方法
JPS63248520A (ja) * 1987-03-31 1988-10-14 Aida Eng Ltd カツプ状物における外径コ−ナ部の成形方法
JPH07124657A (ja) * 1993-11-09 1995-05-16 Yutaka Giken Co Ltd ボス部の増肉成形方法及び成形装置
WO2014109240A1 (fr) * 2013-01-09 2014-07-17 新日鐵住金株式会社 Procédé de formage à la presse
WO2018096693A1 (fr) * 2016-11-24 2018-05-31 株式会社カネミツ Procédé de fabrication d'élément métallique

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
JP3617519B2 (ja) 2003-06-13 2005-02-09 大豊工業株式会社 ディスク部材の製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6087932A (ja) * 1983-10-19 1985-05-17 Riken Kaki Kogyo Kk 板金素材による軸受部材の構成方法
JPS63248520A (ja) * 1987-03-31 1988-10-14 Aida Eng Ltd カツプ状物における外径コ−ナ部の成形方法
JPH07124657A (ja) * 1993-11-09 1995-05-16 Yutaka Giken Co Ltd ボス部の増肉成形方法及び成形装置
WO2014109240A1 (fr) * 2013-01-09 2014-07-17 新日鐵住金株式会社 Procédé de formage à la presse
WO2018096693A1 (fr) * 2016-11-24 2018-05-31 株式会社カネミツ Procédé de fabrication d'élément métallique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112222294A (zh) * 2020-09-22 2021-01-15 厦门捷讯传动轮机械有限公司 一种料片内孔双向翻边成型工艺
CN112916783A (zh) * 2021-02-07 2021-06-08 哈尔滨工业大学 一种带有局部孔增厚特征的板锻造成形模具装置及工艺方法
JP2023092420A (ja) * 2021-12-21 2023-07-03 株式会社三五 フランジ部及び環状凸部が管端に一体的に形成された筒状体の成形方法
JP7751523B2 (ja) 2021-12-21 2025-10-08 株式会社三五 フランジ部及び環状凸部が管端に一体的に形成された筒状体の成形方法

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