EP2555886B1 - Procede de fabrication de pieces forgees en alliage leger incorporant des sections pleines ou tirees d'epaisseur - Google Patents

Procede de fabrication de pieces forgees en alliage leger incorporant des sections pleines ou tirees d'epaisseur Download PDF

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Publication number
EP2555886B1
EP2555886B1 EP11719334.2A EP11719334A EP2555886B1 EP 2555886 B1 EP2555886 B1 EP 2555886B1 EP 11719334 A EP11719334 A EP 11719334A EP 2555886 B1 EP2555886 B1 EP 2555886B1
Authority
EP
European Patent Office
Prior art keywords
core
forging
cores
casting
modelling
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.)
Active
Application number
EP11719334.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2555886A1 (fr
Inventor
Emile Thomas Di Serio
Véronique BOUVIER
Romain Epale
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.)
Saint Jean Industries SAS
Original Assignee
Saint Jean Industries SAS
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Filing date
Publication date
Application filed by Saint Jean Industries SAS filed Critical Saint Jean Industries SAS
Priority to PL11719334T priority Critical patent/PL2555886T3/pl
Publication of EP2555886A1 publication Critical patent/EP2555886A1/fr
Application granted granted Critical
Publication of EP2555886B1 publication Critical patent/EP2555886B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00—Special casting characterised by the nature of the product
    • B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/002—Hybrid process, e.g. forging following casting
    • 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
    • B21K21/00—Making hollow articles not covered by a single preceding sub-group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
    • B22D31/002—Cleaning, working on castings

Definitions

  • the invention relates to the technical sector of hot forging or cold for making hollow parts of light alloys.
  • the invention also refers to the technical sector of the foundry in which it is known to melt the material around a core previously disposed and held in a mold.
  • the invention relates to the application of the method for all technical fields for the production of parts with high mechanical characteristics and in particular for certain parts or components in the fields of automotive, cycle not limited.
  • hollow part forging is well known. This is for example the case of forging ingots of previously pierced material. It is also the radial forging of blanks or forging ingots requiring time and several forging steps.
  • the patent EP 850825 does not take into account the possibilities of kernel deformations during the striking operation during forging. This patent is limited to pedal cranks for cycle in which the stresses are quite different than those resulting from the technical components for the design of motor vehicles.
  • the bearing surfaces associated with the core are arranged in the zones to be machined.
  • the process described in the patent requires that the workpiece obtained must be drilled and pre-machined in order to break the core. This constraint is very heavy and delicate to achieve. The operator must also cut the final piece. The trimming results in the recovery of various and incompatible materials such as aluminum and steel, the aluminum being contained in the forged flash and the steel being the constituent material of the sealing means (pins, worn-inserts). This requires in the hypothesis of recycling a sorting.
  • the method according to the invention is distinguished from the prior art by the initial modeling operations of the part including one or more cores (1) mono-material and recyclable and integrating into the same material their bearing (1a) positioning .
  • These modeling operations allow the definition of parts of parts that must be full and those that have thick drawn by the placement of the cores.
  • the upstream modeling combined with the mastery and the knowledge of the characteristics of the materials constituting the part and the core (s) make it possible to simulate the flow of the metal around the core or cores which deform during the forging. This allows the optimization of the shape of the cores or placed in the room for its implementation by casting and forging.
  • the method according to the invention also implements a software of values integrating all the data relating to the finished part to obtain, all the data of the core or nuclei, all the data relating to the machine or striking tools, said software calculating the set of deformations of the piece and the nucleus or nuclei to define the initial and final forms to obtain.
  • Modeling makes it possible to have no internal defect because the initial shape of the nucleus or nuclei is defined beforehand to meet this objective, for example, the types of defects, release of the core in the burr or drawn of inhomogeneous thickness over any section, can not arrive.
  • the modeling makes it possible to have no apparent external defect type withdrawal, trace of crude for example.
  • the burr obtained after forging remains exclusively in the casting material and can be easily cut and recycled.
  • the method according to the invention also makes it possible to define, among other things, an optimization of the stiffness and, on the other hand, to reduce the weight without deteriorating the behavior of the part.
  • the core (s) (x) (1) are further selected and defined with a compression ratio of less than 0.30 to 1500 MPa.
  • the core or cores may be of different materials, especially made of sand, but in an optimized version of salt as needed but each core is mono-material. It is possible to recover fully after unstacking the nucleus according to the known methodologies.
  • the core can be removed in particular by thermal deburring or mechanical deburring when it is sand, or air / water pressure if the core is in salt.
  • the evacuation of the nucleus (s) is carried out conventionally by means of orifices provided on the shell and the striking matrix.
  • the same part treated by the process according to the invention can have, according to the modelizations, a single hollow zone for the reception of a core, a plurality of alternating hollow zones with solid zones, the hollow zones receiving cores in corresponding number.
  • the staves (1a) can be multidirectional.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
EP11719334.2A 2010-04-06 2011-04-05 Procede de fabrication de pieces forgees en alliage leger incorporant des sections pleines ou tirees d'epaisseur Active EP2555886B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11719334T PL2555886T3 (pl) 2010-04-06 2011-04-05 Sposób wytwarzania odkuwek z lekkiego stopu zawierających sekcje pełne lub ze zmniejszoną grubością

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1052586A FR2958193B1 (fr) 2010-04-06 2010-04-06 Procede de fabrication de pieces forgees en alliage leger incorporant des sections pleines ou tirees d'epaisseur
PCT/FR2011/050757 WO2011124836A1 (fr) 2010-04-06 2011-04-05 Procede de fabrication de pieces forgees en alliage leger incorporant des sections pleines ou tirees d'epaisseur

Publications (2)

Publication Number Publication Date
EP2555886A1 EP2555886A1 (fr) 2013-02-13
EP2555886B1 true EP2555886B1 (fr) 2014-06-25

Family

ID=43086977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11719334.2A Active EP2555886B1 (fr) 2010-04-06 2011-04-05 Procede de fabrication de pieces forgees en alliage leger incorporant des sections pleines ou tirees d'epaisseur

Country Status (13)

Country Link
US (1) US8701741B2 (enExample)
EP (1) EP2555886B1 (enExample)
JP (1) JP5850910B2 (enExample)
CN (1) CN102917815B (enExample)
BR (1) BR112012025340B1 (enExample)
ES (1) ES2505499T3 (enExample)
FR (1) FR2958193B1 (enExample)
HR (1) HRP20140914T1 (enExample)
PL (1) PL2555886T3 (enExample)
PT (1) PT2555886E (enExample)
RS (1) RS53538B1 (enExample)
RU (1) RU2578282C2 (enExample)
WO (1) WO2011124836A1 (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2523894B1 (en) 2010-01-14 2017-08-23 Nordson Corporation Jetting discrete volumes of high viscosity liquid
US9205482B2 (en) * 2014-03-21 2015-12-08 Alex Global Technology, Inc. Method for manufacturing integrated aluminum alloy bicycle front fork
CN107848013B (zh) 2015-03-13 2020-01-21 奥科宁克公司 生产具有内部通道的锻造产品的方法
US9579709B2 (en) * 2015-03-20 2017-02-28 Alex Global Technology, Inc. Method for manufacturing bicycle front fork having wheel clamping base
CN104785692B (zh) * 2015-04-14 2016-08-24 太原科技大学 一种确定隔框锻件变厚度板坯形状尺寸的方法
CA3011463C (en) 2016-01-14 2020-07-07 Arconic Inc. Methods for producing forged products and other worked products
US11021187B2 (en) 2017-12-08 2021-06-01 ILJIN USA Corporation Steering knuckle and method of making the same
CN114289658B (zh) * 2021-12-27 2023-07-25 中国兵器科学研究院宁波分院 一种铝合金铸锻的复合成形方法
CN114769510B (zh) * 2022-03-30 2024-01-09 贺州市旭平首饰有限公司 一种首饰失蜡铸造的方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU114071A1 (ru) * 1957-03-04 1957-11-30 Д.И. Бережковский Способ изготовлени поковок дл изделий, имеющих осевое отверстие
DE3373281D1 (en) 1983-03-14 1987-10-08 Serio Thomas Di Method of producing pieces of aluminium or aluminium alloy
CN85106018B (zh) * 1985-07-22 1988-03-30 上海交通大学 低塑性铝硅铜合金连杆的铸锻工艺
JP2717440B2 (ja) * 1989-04-06 1998-02-18 マツダ株式会社 塑性結合方法
DE19547388A1 (de) * 1995-12-19 1997-06-26 Bayerische Motoren Werke Ag Herstellverfahren für ein Guß-Maschinenteil mit einer durch Bruchtrennen mehrteilig gestalteten Lageranordnung
JP3149374B2 (ja) * 1996-12-27 2001-03-26 株式会社シマノ 自転車用中空クランクとその製造方法
JP3248676B2 (ja) * 1996-12-27 2002-01-21 株式会社シマノ 自転車用クランクとその製造方法
JP3248675B2 (ja) * 1996-12-27 2002-01-21 株式会社シマノ 自転車用クランクの製造方法
FR2803232B1 (fr) * 1999-12-29 2002-04-26 Serio Emile Di Procede perfectionne pour fabriquer des pieces en alliage leger
FR2818565B1 (fr) 2000-12-27 2003-07-04 Serio Emile Di Procede de fabrication de pieces moulees puis forgees comprenant un ou deux evidements et installation de mise en oeuvre
EP1350714A1 (en) * 2002-03-19 2003-10-08 Campagnolo Srl Hollow crank arm for a bicycle, and process for manufacturing the same
US6564675B1 (en) * 2002-07-23 2003-05-20 Cheng-Xun Jiang Crank arm for bicycles
JP2004136323A (ja) * 2002-10-17 2004-05-13 Mazda Motor Corp 軽合金複合部材の製造方法
JP2004340307A (ja) * 2003-05-16 2004-12-02 Toyota Motor Corp 中空クランク軸
EP1806188A1 (en) * 2006-01-10 2007-07-11 Yu, Chai-chi Molding assembly and method for making a crank
FR2921574B1 (fr) * 2007-09-28 2010-04-16 Sifcor Procede de fabrication de pieces forgees creuses et pieces ainsi obtenues

Also Published As

Publication number Publication date
BR112012025340A2 (pt) 2016-06-28
RU2578282C2 (ru) 2016-03-27
PL2555886T3 (pl) 2014-11-28
JP5850910B2 (ja) 2016-02-03
US20130098575A1 (en) 2013-04-25
US8701741B2 (en) 2014-04-22
PT2555886E (pt) 2014-09-26
FR2958193A1 (fr) 2011-10-07
RS53538B1 (sr) 2015-02-27
JP2013523457A (ja) 2013-06-17
ES2505499T3 (es) 2014-10-10
FR2958193B1 (fr) 2012-06-29
HRP20140914T1 (hr) 2014-11-07
WO2011124836A1 (fr) 2011-10-13
BR112012025340B1 (pt) 2020-11-17
CN102917815A (zh) 2013-02-06
RU2012146973A (ru) 2014-05-20
CN102917815B (zh) 2015-02-25
EP2555886A1 (fr) 2013-02-13

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