Global Patent Index - EP 2942412 B1

EP 2942412 B1 20161116 - FORGED AEROSPACE PRODUCTS FROM LITHIUM-FREE ALUMINIUM ALLOY CONTAINING COPPER MAGNESIUM AND SILVER

Title (en)

FORGED AEROSPACE PRODUCTS FROM LITHIUM-FREE ALUMINIUM ALLOY CONTAINING COPPER MAGNESIUM AND SILVER

Title (de)

GESCHMIEDETE PRODUKTE FÜR DIE RAUMFAHRTINDUSTRIE AUS EINER LITHIUMFREIEN MAGNESIUM-KUPFER-SILBER ENTHALTENDEN ALUMINIUMLEGIERUNG

Title (fr)

PRODUITS AÉROSPATIAUX FORGÉS EN ALLIAGE D'ALUMINIUM AVEC ARGENT, MAGNÉSIUM ET CUIVRE MAIS SANS LITHIUM

Publication

EP 2942412 B1 20161116 (EN)

Application

EP 15166597 A 20150506

Priority

  • US 201461989326 P 20140506
  • US 201414461102 A 20140815

Abstract (en)

[origin: EP2942412A1] A substantially lithium-free alloy may comprise copper from 4.8 wt.% to 5.4 wt.%, magnesium from 0.7 wt.% to 1.1 wt.%, silver from 0.55 wt.% to 0.7 wt.%, and lithium at or below 0.005 wt.%. The substantially lithium-free alloy may further comprise silver from 0.56 wt.% to 0.7 wt.%. The substantially lithium-free alloy may also comprise zirconium from 0.08 wt.% to 0.15 wt.%. The substantially lithium-free alloy may include titanium at or below 0.06 wt.%, iron at or below 0.1 wt.%, silicon at or below 0.08 wt.%, beryllium at or below 0.0001 wt.%, chromium at or below 0.05 wt.%, and zinc at or below 0.25 wt.%.

IPC 8 full level

C22C 21/16 (2006.01); C22F 1/057 (2006.01)

CPC (source: EP US)

C22C 21/14 (2013.01 - US); C22C 21/16 (2013.01 - EP US); C22C 21/18 (2013.01 - US); C22F 1/04 (2013.01 - US); C22F 1/057 (2013.01 - EP US)

Citation (opposition)

Opponent : Aleris Rolled Products Germany GmbH

Opponent : Arconic Inc.

  • US 5879475 A 19990309 - KARABIN LYNETTE M [US]
  • US 5652063 A 19970729 - KARABIN LYNETTE M [US]
  • STEELE ET AL.: "Aluminum Alloy 2040 for Demandinq Aircraft Wheel Applications", AEROMAT 2006 CONFERENCE & EXPOSITION LIGHT ALLOY TECHNOLOGY SESSION 4, DAMAGE TOLERANT ALUMINUM ALLOY AIRFRAME APPLICATIONS, 18 May 2006 (2006-05-18), XP055411345
  • "Aluminum and Aluminum Alloys", ASM SPECIALTY HANDBOOK,, 1993, XP055411353
  • "American National Standard Alloy and Temper Designation Systems for Aluminum", THE ALUMINUM ASSOCIATION INCORPORATED, 2009, XP055411360
  • ROBERT EDAHL ET AL.: "Effect of Thermal Exposure on the Tensile Properties of Aluminum Alloys for Elevated Temperature Service", NASA, February 2004 (2004-02-01), XP055411369
  • L.S. STEELE: "Aluminum Alloy 2040 for Demanding Aircraft Wheel Applications", ARCHIVE 17TH AEROMAT CONFERENCE & EXPOSITION, 15 May 2006 (2006-05-15), XP055411372, Retrieved from the Internet <URL:https://asm.confex.com/asm/aero06/techproaram/paper 13279.htm>

Opponent : SAFRAN LANDING SYSTEMS

Opponent : Safran Landing Systems

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2942412 A1 20151111; EP 2942412 B1 20161116; CA 2886124 A1 20151106; RU 2015116924 A 20161127; RU 2015116924 A3 20181102; US 2015322556 A1 20151112

DOCDB simple family (application)

EP 15166597 A 20150506; CA 2886124 A 20150323; RU 2015116924 A 20150505; US 201414461102 A 20140815