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(12) Patent: | (11) CA 2417998 |
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(54) English Title: | METHOD FOR PRODUCING HALF-FINISHED PRODUCTS MADE OF ALUMINIUM ALLOYS AND AN ARTICLE MANUFACTURED WITH THE AID OF SAID METHOD |
(54) French Title: | PROCEDE DE FABRICATION D'UN DEMI-PRODUIT A PARTIR D'UN ALLIAGE D'ALUMINIUM ET ARTICLE OBTENU PAR CE PROCEDE |
Status: | Expired and beyond the Period of Reversal |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | MARKS & CLERK |
(74) Associate agent: | |
(45) Issued: | 2009-04-21 |
(86) PCT Filing Date: | 2001-07-30 |
(87) Open to Public Inspection: | 2003-02-03 |
Examination requested: | 2003-09-04 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | Yes |
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(86) PCT Filing Number: | PCT/RU2001/000319 |
(87) International Publication Number: | RU2001000319 |
(85) National Entry: | 2003-02-03 |
(30) Application Priority Data: | ||||||
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The present invention relates to the method of fabrication of wrought
semiproducts
from high strength aluminium-based alloys, and fabrication of articles from
such
semiproducts e.g frames, fittings, beams, etc. used in aerospace engineering
and
transportation facilities.
The suggested method comprises:
casting an ingot, homogenization, forging the ingot, extrusion of the wrought
billet, solution heat treatment, cold working in two steps:
1. stretching with 1-5% permanent set,
2. multi-axial shaping of the billet by bending while simultaneously
performing the
local plastic deformation of the billet by compressing (1-20 %) the joint
places of the
blank parts being disposed at an angle of 45-135° to each other;
two stage ageing: 1st stage = heating to 90-120°C for 5-24 hours;
2nd stage = heating to 160-190°C for 5-20 hours. The suggested method
allows to fabricate long, irregular-shaped semiproducts from wrought aluminium-
based
alloys having high strength and fracture toughness and low level of residual
stresses,
thereby providing the fabrication of products without any distortion or
buckling upon
machining.
L'invention concerne un procédé de fabrication de demi-produits déformables à partir d'alliages d'aluminium et articles faits des ces demi-produits, qui se présentent comme des cloisons, ferrures, poutres, etc., destinés à être utilisés en industrie aérospatiale et dans des véhicules de transport. Le procédé de l'invention comprend les opérations suivantes: coulage d'un lingot, homogénéisation, forgeage du lingot, pressage d'une ébauche, trempage et déformation à froid en deux stades. Cette dernière comprend ce qui suit: 1) formage par étirage, avec une déformation résiduelle entre 1 et 5 %, 2) pliage volumique de l'ébauche, avec déformations plastiques simultanée par compression entre 1 et 20 % dans les zones de jonction des éléments de l'ébauche disposés sous un angle de 45 - 135 DEG les uns par rapport aux autres, vieillissement (1er palier: chauffage à une température de 90 à 120 DEG C pendant 5 à 24 heures; 2ème palier: chauffage à une température de 160 à 190 DEG C pendant 5 à 20 h). Le procédé de l'invention permet d'obtenir des demi-produits longs de forme complexe à partir d'alliages d'aluminium déformés présentant des caractéristiques de rigidité et une résistance au fissuration élevées ainsi qu'un faible niveau de contraintes résiduelles, ce qui permet d'obtenir lors d'un traitement mécanique des articles sans retrait ni ondulation.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
Sorry, the representative drawing for patent document number 2417998 was not found.
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Please note that "Inactive:" events refers to events no longer in use in our new back-office solution.
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Description | Date |
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Time Limit for Reversal Expired | 2016-08-01 |
Letter Sent | 2015-07-30 |
Grant by Issuance | 2009-04-21 |
Inactive: Cover page published | 2009-04-20 |
Inactive: Final fee received | 2009-02-03 |
Pre-grant | 2009-02-03 |
Letter Sent | 2008-12-19 |
Amendment After Allowance Requirements Determined Compliant | 2008-12-19 |
Amendment After Allowance (AAA) Received | 2008-12-08 |
Letter Sent | 2008-09-10 |
4 | 2008-09-10 |
Notice of Allowance is Issued | 2008-09-10 |
Notice of Allowance is Issued | 2008-09-10 |
Inactive: IPC assigned | 2008-08-24 |
Inactive: Approved for allowance (AFA) | 2008-07-08 |
Amendment Received - Voluntary Amendment | 2008-03-10 |
Inactive: S.30(2) Rules - Examiner requisition | 2007-09-14 |
Amendment Received - Voluntary Amendment | 2007-05-15 |
Inactive: S.29 Rules - Examiner requisition | 2006-11-15 |
Inactive: S.30(2) Rules - Examiner requisition | 2006-11-15 |
Inactive: Office letter | 2004-08-31 |
Correct Applicant Requirements Determined Compliant | 2004-08-31 |
Inactive: Office letter | 2004-08-19 |
Inactive: Applicant deleted | 2004-08-04 |
Inactive: Office letter | 2004-06-30 |
Correct Applicant Requirements Determined Compliant | 2004-06-29 |
Letter Sent | 2004-05-06 |
Letter Sent | 2004-05-06 |
Letter Sent | 2004-05-06 |
Letter Sent | 2004-05-06 |
Letter Sent | 2004-05-06 |
Letter Sent | 2004-05-06 |
Letter Sent | 2004-05-06 |
Letter Sent | 2004-05-06 |
Letter Sent | 2004-05-06 |
Letter Sent | 2004-05-06 |
Letter Sent | 2004-05-06 |
Inactive: Applicant deleted | 2004-05-03 |
Inactive: Correspondence - Transfer | 2004-03-03 |
Inactive: Correspondence - Formalities | 2004-01-30 |
Inactive: Single transfer | 2004-01-30 |
Letter Sent | 2003-09-25 |
Inactive: IPRP received | 2003-09-23 |
All Requirements for Examination Determined Compliant | 2003-09-04 |
Request for Examination Requirements Determined Compliant | 2003-09-04 |
Request for Examination Received | 2003-09-04 |
Inactive: Courtesy letter - Evidence | 2003-03-25 |
Inactive: Cover page published | 2003-03-25 |
Inactive: First IPC assigned | 2003-03-23 |
Inactive: Applicant deleted | 2003-03-21 |
Inactive: Notice - National entry - No RFE | 2003-03-21 |
Application Received - PCT | 2003-03-04 |
National Entry Requirements Determined Compliant | 2003-02-03 |
Application Published (Open to Public Inspection) | 2003-02-03 |
National Entry Requirements Determined Compliant | 2003-02-03 |
There is no abandonment history.
The last payment was received on 2009-02-19
Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following
Patent fees are adjusted on the 1st of January every year. The amounts above are the current amounts if received by December 31 of the current year.
Please refer to the CIPO
Patent Fees
web page to see all current fee amounts.
Fee Type | Anniversary Year | Due Date | Paid Date |
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Basic national fee - standard | 2003-02-03 | ||
MF (application, 2nd anniv.) - standard | 02 | 2003-07-30 | 2003-02-03 |
Request for examination - standard | 2003-09-04 | ||
Registration of a document | 2004-01-30 | ||
MF (application, 3rd anniv.) - standard | 03 | 2004-07-30 | 2004-07-16 |
MF (application, 4th anniv.) - standard | 04 | 2005-08-01 | 2005-05-09 |
MF (application, 5th anniv.) - standard | 05 | 2006-07-31 | 2006-06-08 |
MF (application, 6th anniv.) - standard | 06 | 2007-07-30 | 2007-07-23 |
MF (application, 7th anniv.) - standard | 07 | 2008-07-30 | 2008-05-22 |
Final fee - standard | 2009-02-03 | ||
MF (application, 8th anniv.) - standard | 08 | 2009-07-30 | 2009-02-19 |
MF (patent, 9th anniv.) - standard | 2010-07-30 | 2010-07-30 | |
MF (patent, 10th anniv.) - standard | 2011-08-01 | 2011-06-17 | |
MF (patent, 11th anniv.) - standard | 2012-07-30 | 2012-06-18 | |
MF (patent, 12th anniv.) - standard | 2013-07-30 | 2013-07-15 | |
MF (patent, 13th anniv.) - standard | 2014-07-30 | 2014-07-17 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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FEDERALNOE GOSUDARSTVENNOE UNITARNOE PREDPRIYATIE "VSEROSSIISKY NAUCHNO- |
FEDERALNOE GOSUDARSTVENNOE UNITARNOE PREDPRIYATIE "VSEROSSIISKY NAUCHNO-ISSLEDOVATELSKY INSTITUT AVIATSIONNYKH MATERIALOV |
OPEN JOINT STOCK COMPANY "SAMARA METALLURGICAL PLANT" |
Past Owners on Record |
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ALEXANDER ALEXANDROVICH IGUMENOV |
EVGENIA ANATOLIEVNA TKACHENKO |
EVGENY NIKOLAEVICH KABLOV |
IOSIF NAUMOVICH FRIDLYANDER |
VIKTOR MIKHAILOVICH BUDANOV |
VIKTOR YAKOVLEVICH VALKOV |