EP2074237B1 - Procede de fabrication de pieces forgees a chaud en alliage de magnesium - Google Patents

Procede de fabrication de pieces forgees a chaud en alliage de magnesium Download PDF

Info

Publication number
EP2074237B1
EP2074237B1 EP07823307.9A EP07823307A EP2074237B1 EP 2074237 B1 EP2074237 B1 EP 2074237B1 EP 07823307 A EP07823307 A EP 07823307A EP 2074237 B1 EP2074237 B1 EP 2074237B1
Authority
EP
European Patent Office
Prior art keywords
forging
alloy
temperature
magnesium
magnesium alloy
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
EP07823307.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2074237A2 (fr
Inventor
Pascal Cantrel
Sophie Lubin
Christian Henri Paul Mauhe
Isabelle Robert
Jean Stracchi
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.)
Manoir Aerospace
Safran Transmission Systems SAS
Original Assignee
Manoir Aerospace
Safran Transmission Systems SAS
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 Manoir Aerospace, Safran Transmission Systems SAS filed Critical Manoir Aerospace
Publication of EP2074237A2 publication Critical patent/EP2074237A2/fr
Application granted granted Critical
Publication of EP2074237B1 publication Critical patent/EP2074237B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C23/00—Alloys based on magnesium
    • C22C23/06—Alloys based on magnesium with a rare earth metal as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon

Definitions

  • the present invention relates to the field of metalworking, and more particularly to magnesium alloys.
  • magnesium-based alloys for the same applications. Indeed, these are known on the one hand for their lower density and secondly because they are likely to benefit from better heat resistance. However, not all magnesium alloys are satisfactory. For example, the known alloy series AZ31, AZ61 or AZ80 and ZK reveal behaviors similar to aluminum alloys and thus do not meet the expressed need. New molded magnesium alloys have appeared in recent years and are destined for the same field of application, but molding generates high hazard rates, of the order of 15 to 30%. Defects such as porosity or shrinkage must be taken into account when dimensioning parts. This reduces the benefit of their job.
  • the applicant has set itself the objective of producing a magnesium alloy part, for the reduction of mass that it provides with respect to aluminum in particular, but whose metallurgical and dimensional stabilities at the operating temperatures of the part are sufficient. not to require thickening mechanically stressed areas. Indeed, such thickening is often necessary to take into account the loss of characteristics due to the thermal aging of the material that constitutes it.
  • An example of a foundry alloy is that provided by the company Magnesium Elektron Limited (under the reference Elektron 21) of standardized denomination EV31A and whose more precise composition is as follows.
  • the magnesium alloy comprises: 0.2 to 0.5% zinc, 2.6 to 3.1% neodymium, 1.0 to 1.7% gadolinium, and is saturated with zirconium. This product is defined by the claims of the patent application WO 2005/035811 .
  • the forging temperature is between 420 and 430 ° C and the plastic deformation is performed at low speed, in particular at a speed corresponding to a speed of movement of the forging slider less than 40 mm / sec.
  • the forging plastic deformation is carried out by stamping in one or more steps.
  • the plastic deformation is carried out by spinning or rolling.
  • the initial block is molded and more particularly molded block is wrought beforehand before stamping.
  • the forging is followed by a heat treatment with a solution step, a quench step and a tempering step at a temperature between 200 ° C and 250 ° C.
  • a delivery device for the machining of metal blanks comprises two flat piles, possibly comprising a recess housing.
  • a piece is placed on the lower pile, the two flat piles being pressed against each other, by a press, to ensure the backflow of the billet, which takes the form, corresponding to the housing between the two flat piles.
  • Several backflow operations are usually necessary to obtain the billet usable in stamping. Heats of plots are possible between the different operations of repression.
  • Milling is then carried out in one or more steps; for example, a first blanking die step makes it possible to obtain a first form approaching the definitive form. Then we proceed to precision stamping on a press to obtain the piece to the final form. It is observed that this final shape may be machined if necessary to obtain the part ready for use.
  • An example of installation 3 is represented on the figure 2 .
  • the matrices, upper 5a, lower 5b are flat heaps for obtaining the shape at the step in question.
  • the blank is heated in the same way before the precision stamping step.
  • the stamping tools are preheated and maintained in temperature during the manufacturing process.
  • the rate of deformation of the part corresponding to the speed of movement of the slide of the die-casting machine is less than 40 mm / sec, preferably between 10 and 30 mm / s.
  • the target speed is 20 mm / s.
  • the temperature range of between 200 ° C and 225 ° C is optimized to obtain better characteristics in the case of operation at room temperature.
  • the temperature range of between 225 ° C and 250 ° C is optimized to obtain better characteristics in the case of operation at temperatures above 180 ° C.
  • Tests were carried out so as to be able to compare the mechanical properties of the forged alloy with a molded alloy of the prior art AS7G06T1R2 which is a reference for aeronautics.
  • the tensile strength Rm in Mpa and the yield strength Rp 0.2 were measured. Without aging Room temperature test Rm (MPa) Rp 0.2 (Mpa) AS7G06T1R2 ⁇ 270 ⁇ 220 EV 31A wrought 287 187.5 Decrease in characteristics Rm (MPa) Rp 0.2 (Mpa) AS7G06T1R2 53% 68% EV 31A wrought 15% ⁇ 15%

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Forging (AREA)
EP07823307.9A 2006-07-20 2007-07-19 Procede de fabrication de pieces forgees a chaud en alliage de magnesium Active EP2074237B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0653053A FR2904005B1 (fr) 2006-07-20 2006-07-20 Procede de fabrication de pieces forgees a chaud en alliage de magnesium.
PCT/FR2007/001245 WO2008009825A2 (fr) 2006-07-20 2007-07-19 Procede de fabrication de pieces forgees a chaud en alliage de magnesium

Publications (2)

Publication Number Publication Date
EP2074237A2 EP2074237A2 (fr) 2009-07-01
EP2074237B1 true EP2074237B1 (fr) 2018-02-21

Family

ID=37897465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07823307.9A Active EP2074237B1 (fr) 2006-07-20 2007-07-19 Procede de fabrication de pieces forgees a chaud en alliage de magnesium

Country Status (7)

Country Link
US (1) US8142578B2 (zh)
EP (1) EP2074237B1 (zh)
CN (1) CN101517117B (zh)
BR (1) BRPI0714451B1 (zh)
CA (1) CA2659041C (zh)
FR (1) FR2904005B1 (zh)
WO (1) WO2008009825A2 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101139879B1 (ko) * 2009-07-17 2012-05-02 포항공과대학교 산학협력단 선압축변형을 이용하여 저주기 피로 수명이 향상된 마그네슘 합금 가공재의 제조방법
GB2473298B (en) * 2009-11-13 2011-07-13 Imp Innovations Ltd A method of forming a component of complex shape from aluminium alloy sheet
US20110188967A1 (en) * 2010-02-03 2011-08-04 Kuo-Chen Hung Magnesium Nut Manufacturing Method and Magnesium Nut Member Produced Thereby
CN101934365B (zh) * 2010-09-27 2012-05-30 上海交通大学 基于镁基合金的摩托车发动机缸套的制造方法
ES2558564T3 (es) 2011-08-15 2016-02-05 Meko Laserstrahl-Materialbearbeitungen E.K. Aleación de magnesio, así como prótesis endovasculares que contienen ésta
CN112916777A (zh) * 2020-12-28 2021-06-08 东北轻合金有限责任公司 一种航天用高成型性镁合金锻件制造方法
GB202111588D0 (en) * 2021-08-12 2021-09-29 Magnesium Elektron Ltd Extension of castable alloys
CN115449685B (zh) * 2022-09-28 2024-04-05 洛阳理工学院 一种变形镁合金及其制备方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092492A (en) * 1960-12-27 1963-06-04 Dow Chemical Co Magnesium-base alloy
US3157496A (en) * 1962-09-13 1964-11-17 Dow Chemical Co Magnesium base alloy containing small amounts of rare earth metal
GB1023128A (en) * 1964-08-18 1966-03-16 Dow Chemical Co Magnesium-base alloys
US4116731A (en) * 1976-08-30 1978-09-26 Nina Mikhailovna Tikhova Heat treated and aged magnesium-base alloy
GB9502238D0 (en) * 1995-02-06 1995-03-29 Alcan Int Ltd Magnesium alloys
JPH10140304A (ja) * 1996-11-01 1998-05-26 Toyota Central Res & Dev Lab Inc マグネシウム合金の熱処理方法
EP0945199B1 (en) * 1998-03-26 2003-11-26 Tokyo Seitan Inc. Thin, forged magnesium alloy casing and method for producing the same
IL147561A (en) * 2002-01-10 2005-03-20 Dead Sea Magnesium Ltd High temperature resistant magnesium alloys
AUPS311202A0 (en) * 2002-06-21 2002-07-18 Cast Centre Pty Ltd Creep resistant magnesium alloy
GB0323855D0 (en) * 2003-10-10 2003-11-12 Magnesium Elektron Ltd Castable magnesium alloys
JP3905115B2 (ja) * 2003-11-26 2007-04-18 能人 河村 高強度高靭性マグネシウム合金及びその製造方法
JP4500916B2 (ja) * 2004-09-28 2010-07-14 国立大学法人 熊本大学 マグネシウム合金及びその製造方法

Also Published As

Publication number Publication date
CN101517117A (zh) 2009-08-26
US8142578B2 (en) 2012-03-27
CA2659041C (fr) 2014-01-21
FR2904005B1 (fr) 2010-06-04
CA2659041A1 (fr) 2008-01-24
WO2008009825A3 (fr) 2009-01-29
EP2074237A2 (fr) 2009-07-01
FR2904005A1 (fr) 2008-01-25
BRPI0714451A2 (pt) 2013-04-02
WO2008009825A2 (fr) 2008-01-24
US20100012234A1 (en) 2010-01-21
CN101517117B (zh) 2015-07-01
BRPI0714451B1 (pt) 2017-04-04

Similar Documents

Publication Publication Date Title
EP2074237B1 (fr) Procede de fabrication de pieces forgees a chaud en alliage de magnesium
US11555229B2 (en) High-strength aluminum alloy laminated molding and production method therefor
EP3914746B1 (fr) Procédé de fabrication d'une pièce en alliage d'aluminium
EP2652163B1 (fr) Produits epais en alliage 7xxx et procede de fabrication
EP2344290B1 (fr) Procede de forgeage d'une piece thermomecanique en alliage de titane.
JP2019527299A5 (zh)
FR2557148A1 (fr) Procede pour augmenter la forgeabilite d'un article en superalliage a base de nickel
JP2017155291A (ja) 高強度アルミニウム合金積層成形体の製造方法
CA2986788A1 (fr) Procede de fabrication d'une aube de turbomachine en tial
KR101636117B1 (ko) 고강도 마그네슘 합금 선재 및 그 제조 방법, 고강도 마그네슘 합금 부품, 및 고강도 마그네슘 합금 스프링
JP4776751B2 (ja) マグネシウム合金薄板の製造方法
KR101659199B1 (ko) 마그네슘 합금 부재 및 그 제조 방법
JP2003226929A (ja) マグネシウム合金材の冷間プレス成形方法
KR20170031754A (ko) 조향 서포트 요크
KR20180088446A (ko) 시트 재료로부터 부품을 성형하는 방법
EP3250722B1 (fr) Procede d'obtention d'une piece en alliage d'aluminium bas silicium
EP2424688B1 (fr) Procede de fabrication de produits allonges en titane
JP4955158B2 (ja) マグネシウム合金板材
JPH0288735A (ja) 延性と耐摩耗性を兼ね備えた複合材料、その製造方法およびその用途
EP1550522A1 (fr) Procédé de fabrication de pièces en alliage léger avec un refroidissement avant pressage et sans bavures
JP2003342612A (ja) アルミニウム合金粉末の鍛造方法および本方法により得られた成形体
EP2891532A1 (fr) Procédé de fabrication de pièces en titane issues d'une opératiopn de fonderie suivie d'une opération de forge desdites pièces

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090220

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CANTREL, PASCAL

Inventor name: STRACCHI, JEAN

Inventor name: MAUHE, CHRISTIAN, HENRI, PAUL

Inventor name: ROBERT, ISABELLE

Inventor name: LUBIN, SOPHIE

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MANOIR INDUSTRIES

Owner name: SAFRAN TRANSMISSION SYSTEMS

17Q First examination report despatched

Effective date: 20161202

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MANOIR AEROSPACE

Owner name: SAFRAN TRANSMISSION SYSTEMS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20171016

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602007053991

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602007053991

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20181122

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230620

Year of fee payment: 17

Ref country code: FR

Payment date: 20230621

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230620

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230620

Year of fee payment: 17