(19)
(11) EP 4 393 642 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.09.2024 Bulletin 2024/37

(43) Date of publication A2:
03.07.2024 Bulletin 2024/27

(21) Application number: 23220614.4

(22) Date of filing: 28.12.2023
(51) International Patent Classification (IPC): 
B24B 19/14(2006.01)
B24B 21/16(2006.01)
B24B 27/00(2006.01)
B24B 51/00(2006.01)
 B24B 19/26(2006.01)
B24B 21/20(2006.01)
B24B 49/16(2006.01)
B24B 37/005(2012.01)
(52) Cooperative Patent Classification (CPC):
B24B 19/14; B24B 19/26; B24B 51/00; B24B 49/16; B24B 21/165; B24B 27/0038; B24B 21/20; B24B 37/005; B24B 21/16
(84) Designated Contracting States:
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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 27.12.2022 US 202263435476 P

(71) Applicant: Pratt & Whitney Canada Corp.
(01BE5) Longueuil, QC J4G 1A1 (CA)

(72) Inventors:
  • MORIN, Philippe
    (01BE5) Longueuil, J4G 1A1 (CA)
  • WHITTOM, Guillaume
    (01BE5) Longueuil, J4G 1A1 (CA)
  • HOANG, Canam
    (01BE5) Longueuil, J4G 1A1 (CA)
  • COLLETTE, Jean-Francois
    (01BE5) Longueuil, J4G 1A1 (CA)
  • NAULT, Pierre-Luc
    (01BE5) Longueuil, J4G 1A1 (CA)
  • DARSIGNY, Olivier
    (01BE5) Longueuil, J4G 1A1 (CA)
  • FORTIER, Guillaume
    (01BE5) Longueuil, J4G 1A1 (CA)
  • LAFORTUNE, David
    (01BE5) Longueuil, J4G 1A1 (CA)

(74) Representative: Dehns 
St. Bride's House 10 Salisbury Square
London EC4Y 8JD
London EC4Y 8JD (GB)

   


(54) MANUFACTURING METHOD OF A POLISHED BLADED ROTOR USING ROBOTIC POLISHING DEVICE


(57) A manufacturing method includes controlling a robotic polishing device (46), at a controller (48), to polish a plurality of first zones (88A; 90A) of a bladed rotor (20) for an aircraft engine based on a first operating parameter associated with the robotic polishing device (46). An exterior (56) of the bladed rotor (20) includes the first zones (88A; 90A) and a plurality of second zones (88B-F; 90B-F). The first zones (88A; 90A) are distributed circumferentially about an axis (22) of the bladed rotor (20) in a first array. The second zones (88B-F; 90B-F) are distributed circumferentially about the axis (22) of the bladed rotor (20) in a second array. The method further includes controlling the robotic polishing device (46), at a controller (48), to polish the second zones (88B-F; 90B-F) using the robotic polishing device (46) based on a second operating parameter. The second operating parameter for the robotic polishing device (56) is different than the first operating parameter.







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