Global Patent Index - EP 1645647 A1

EP 1645647 A1 20060412 - Cold age hardenable Al-alloy and process of the manufacture of a cast part

Title (en)

Cold age hardenable Al-alloy and process of the manufacture of a cast part

Title (de)

Kaltaushärtende Aluminiumgusslegierung und Verfahren zur Herstellung eines Aluminiumgussteils

Title (fr)

Alliage d'aluminium à vieillissement à froid et procédé de fabrication d'une pièce coulée

Publication

EP 1645647 A1 20060412 (DE)

Application

EP 05019300 A 20050906

Priority

DE 102004049074 A 20041008

Abstract (en)

Cold hardening Al alloy based on primary metal/foundry Al of purity 99.9% or melted (sic) to give a primary alloy of higher purity, higher tensile strength and extension limit with an elongation greater than 1% contains (wt.%):Si (6-11), Cu (2.0-4.0), Mn (0.65-1.0), Zn (0.5-3.5), Sr (0.01-0.03), Mn 0.55 maximum, and Fe and Ti each 0.2 maximum. An independent claim is included for a method of preparing an Al casting part from the above composition.

IPC 8 full level

C22C 21/04 (2006.01); C22F 1/04 (2006.01); C22F 1/043 (2006.01)

IPC 8 main group level

C21D (2006.01)

CPC (source: EP)

C22C 21/02 (2013.01); C22C 21/04 (2013.01); C22F 1/04 (2013.01); C22F 1/043 (2013.01)

Citation (search report)

  • [A] WO 9610099 A1 19960404 - ASHURST TECHNOLOGY CORP IRELAN [IE]
  • [A] US 3466170 A 19690909 - DUNKEL ECKHARD, et al
  • [A] US 3619181 A 19711109 - WILLEY LOWELL A
  • [A] US 4648918 A 19870310 - ASANO KAZUHIKO [JP], et al
  • [A] SCHAEFER M ET AL: "EFFECT ON STRONTIUM MODIFICATION ON NEAR-THRESHOLD FATIGUE CRACK GROWTH IN AN AL-SI-CU DIE CAST ALLOY", METALLURGICAL AND MATERIALS TRANSACTIONS A: PHYSICAL METALLURGY &MATERIALS SCIENCE, ASM INTERNATIONAL, MATERIALS PARK, OH, US, vol. 27A, no. 5, 1 May 1996 (1996-05-01), pages 1293 - 1302, XP000593932, ISSN: 1073-5623
  • [A] SAMUEL F H: "INCIPIENT MELTING OF AI5MG8SI6CU2 AND AI2CU INTERMETALLICS IN UNMODIFIED AND STRONTIUM-MODIFIED AI-SI-CU-MG (319) ALLOYS DURING SOLUTION HEAT TREATMENT", JOURNAL OF MATERIALS SCIENCE, SPRINGER / BUSINESS MEDIA, DORDRECHT, NL, vol. 33, no. 9, 1 May 1998 (1998-05-01), pages 2283 - 2297, XP000754486, ISSN: 0022-2461
  • [A] GOWRI S ET AL: "EFFECT OF ALLOYING ELEMENTS ON THE SOLIDIFICATION CHARACTERISTICS AND MICROSTRUCTURE OF AL-SI-CU-MG-FR 380 ALLOY", METALLURGICAL AND MATERIALS TRANSACTIONS A: PHYSICAL METALLURGY &MATERIALS SCIENCE, ASM INTERNATIONAL, MATERIALS PARK, OH, US, vol. 25A, no. 2, 1 February 1994 (1994-02-01), pages 437 - 448, XP000428627, ISSN: 1073-5623

Designated contracting state (EPC)

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

DOCDB simple family (publication)

EP 1645647 A1 20060412; EP 1645647 B1 20071205; EP 1645647 B2 20130612; EP 1645647 B8 20130724; AT E380260 T1 20071215; DE 102004049074 A1 20060413; DE 502005002140 D1 20080117; NO 20054576 D0 20051005; NO 20054576 L 20060410; NO 346421 B1 20220725; PL 1645647 T3 20080731; PL 1645647 T5 20140331

DOCDB simple family (application)

EP 05019300 A 20050906; AT 05019300 T 20050906; DE 102004049074 A 20041008; DE 502005002140 T 20050906; NO 20054576 A 20051005; PL 05019300 T 20050906