Method and system for manufacturing of a moulded cfrp part

Patent metadata

Field	Value
Publication number	US-2016167318-A1
Application number	US-201514970130-A
Country	US
Kind code	A1
Filing date	Dec 15, 2015
Priority date	Dec 16, 2014
Publication date	Jun 16, 2016
Grant date	—

Abstract

A Method for manufacturing of a CFRP part includes laying out one or more pre-preg or composite plies, on a mould comprising a marking tool, forming an uncured laminate with a guiding mark on the uncured laminate using curing the laminate giving the part the final shape with the guiding mark and trimming and/or drilling the CFRP part taking as reference the guiding mark. There are also provided a mould for moulding and curing a CFRP part comprising a marking tool adapted to perform a guiding mark on a fresh CFRP part, and a system for manufacturing of a moulded CFRP part.

First claim

1 . Method for manufacturing of a CFRP part ( 31 , 41 ) comprising the following steps:
laying out one or more pre-preg or composite plies, forming an uncured laminate, curing the laminate giving the part the final shape and trimming and/or drilling the CFRP part characterized in that it comprises the steps of providing a guiding mark ( 32 , 43 ) on the uncured laminate using a mould comprising a marking tool, in such a way that the guiding mark is maintained on the cured CFRP part, and trimming and/or drilling the CFRP part taking as reference the guiding mark ( 32 , 43 ).

2 . Method according to claim 1 wherein providing a guiding mark ( 32 , 43 ) comprises performing at least a fissure or slot or protuberance in the uncured laminate.

3 . Method according to claim 1 wherein trimming or drilling the CFRP part taking as reference the guiding mark ( 32 , 43 ) comprises tracking the guiding mark by optical means, such that the trimming or drilling is guided by said guiding mark ( 32 , 43 ).

4 . Method according to claim 1 wherein trimming or drilling the CFRP part taking as reference the guiding mark ( 32 , 43 ) comprises tracking the guiding mark by tactile means, such as a tactile sensor, such that the trimming or drilling is guided by said guiding mark ( 32 , 43 ).

5 . Mould ( 2 ) for moulding and curing a CFRP part ( 31 , 41 ) comprising a marking tool adapted to perform a guiding mark on an uncured laminate.

6 . Mould ( 2 ) according to claim 5 wherein the marking tool comprises a protuberance ( 21 , 22 ) adapted to perform a slot ( 32 ) on the uncured laminate.

7 . Mould ( 2 ) according to claim 5 wherein the marking tool comprises a notch or slot ( 23 , 24 ), adapted to perform a protuberance ( 43 ) on the uncured laminate.

8 . Mould ( 2 ) according to any of claim 6 wherein the protuberance ( 21 , 22 ) or slot ( 23 , 24 ) is line shaped.

9 . System for manufacturing of a moulded CFRP part comprising a mould according to claim 5 and a trimming and/or drilling tool, wherein the trimming and/or drilling tool comprises means adapted to track a guiding mark such that the trimming is guided by said guiding mark, said means preferably being
optical means adapted to track the mark or
tactile means adapted to track the mark.

Assignees

• Airbus Operations Sl

Inventors

• Cebolla Garrofe Pablo

Classifications

• B29C70/545 Primary

  Perforating, cutting or machining during or after moulding · CPC title

• B29K2307/04

  Carbon · CPC title

• B29C70/30

  Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core · CPC title

• B29C70/06

  Fibrous reinforcements only · CPC title

• B29C2793/009

  after shaping · CPC title