FR3062806B1 - PROCESS FOR MACHINING A COMPOSITE MATERIAL, ESPECIALLY FOR THE REPAIR OF THE COMPOSITE MATERIAL - Google Patents

PROCESS FOR MACHINING A COMPOSITE MATERIAL, ESPECIALLY FOR THE REPAIR OF THE COMPOSITE MATERIAL Download PDF

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Publication number
FR3062806B1
FR3062806B1 FR1751238A FR1751238A FR3062806B1 FR 3062806 B1 FR3062806 B1 FR 3062806B1 FR 1751238 A FR1751238 A FR 1751238A FR 1751238 A FR1751238 A FR 1751238A FR 3062806 B1 FR3062806 B1 FR 3062806B1
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FR
France
Prior art keywords
machining
composite material
cutting tool
orifice
drilling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1751238A
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French (fr)
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FR3062806A1 (en
Inventor
Benoit Barbe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Nacelles SAS
Original Assignee
Safran Nacelles SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Safran Nacelles SAS filed Critical Safran Nacelles SAS
Priority to FR1751238A priority Critical patent/FR3062806B1/en
Publication of FR3062806A1 publication Critical patent/FR3062806A1/en
Application granted granted Critical
Publication of FR3062806B1 publication Critical patent/FR3062806B1/en
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/24—Apparatus or accessories not otherwise provided for
    • B29C73/26—Apparatus or accessories not otherwise provided for for mechanical pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/02—Deburring or deflashing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/24—Apparatus or accessories not otherwise provided for
    • B29C73/26—Apparatus or accessories not otherwise provided for for mechanical pretreatment
    • B29C2073/266—Apparatus or accessories not otherwise provided for for mechanical pretreatment for cutting out an undercut for anchoring the repairing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/002—Panels; Plates; Sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb

Abstract

L'invention concerne un procédé d'usinage, notamment pour la réparation, d'un matériau composite (1) et un kit outil comprenant au moins un outil de coupe (10) et un outil de fractionnement. Le matériau composite (1) comprend une structure en nid d'abeille (2) à haute densité séparant deux couches de peau (3, 4) opposées. Le procédé comprend entre autre une étape de perçage d'un premier orifice d'usinage (9a) dans une couche de peau surmoulée (4), et une étape d'usinage dans la structure en nid d'abeille (2) au moyen de l'outil de coupe (10) pour former une cavité (11) dans la structure en nid d'abeille (2), et une étape d'injection d'une résine à l'intérieur de la cavité (11). Selon l'invention, le procédé comprend : - après l'étape de perçage, une étape d'insertion d'un canon de perçage (12) dans le premier orifice d'usinage (9a) pour protéger les surfaces externes (5) et internes (6) de la couche de peau surmoulée (4) de l'outil de coupe (10) lors de l'étape d'usinage, le canon de perçage (12) comprenant un second orifice d'usinage (9b), et - une étape d'introduction de l'outil de coupe (10) à travers le second orifice d'usinage (9b) avant l'étape d'usinage.The invention relates to a method of machining, in particular for repairing, a composite material (1) and a tool kit comprising at least one cutting tool (10) and one splitting tool. The composite material (1) comprises a high density honeycomb structure (2) separating two opposing skin layers (3, 4). The method comprises, among other things, a step of drilling a first machining orifice (9a) in a layer of overmolded skin (4), and a step of machining in the honeycomb structure (2) by means of the cutting tool (10) for forming a cavity (11) in the honeycomb structure (2), and a step of injecting a resin inside the cavity (11). According to the invention, the method comprises: - after the drilling step, a step of inserting a drilling barrel (12) into the first machining orifice (9a) to protect the external surfaces (5) and internal (6) of the overmolded skin layer (4) of the cutting tool (10) during the machining step, the drilling barrel (12) comprising a second machining orifice (9b), and - a step of introducing the cutting tool (10) through the second machining orifice (9b) before the machining step.

FR1751238A 2017-02-15 2017-02-15 PROCESS FOR MACHINING A COMPOSITE MATERIAL, ESPECIALLY FOR THE REPAIR OF THE COMPOSITE MATERIAL Active FR3062806B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1751238A FR3062806B1 (en) 2017-02-15 2017-02-15 PROCESS FOR MACHINING A COMPOSITE MATERIAL, ESPECIALLY FOR THE REPAIR OF THE COMPOSITE MATERIAL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1751238 2017-02-15
FR1751238A FR3062806B1 (en) 2017-02-15 2017-02-15 PROCESS FOR MACHINING A COMPOSITE MATERIAL, ESPECIALLY FOR THE REPAIR OF THE COMPOSITE MATERIAL

Publications (2)

Publication Number Publication Date
FR3062806A1 FR3062806A1 (en) 2018-08-17
FR3062806B1 true FR3062806B1 (en) 2021-05-28

Family

ID=58739109

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1751238A Active FR3062806B1 (en) 2017-02-15 2017-02-15 PROCESS FOR MACHINING A COMPOSITE MATERIAL, ESPECIALLY FOR THE REPAIR OF THE COMPOSITE MATERIAL

Country Status (1)

Country Link
FR (1) FR3062806B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5518565A (en) * 1994-09-14 1996-05-21 Northrop Grumman Corporation Method of repairing a hole in a sheet member
JP3243461B2 (en) * 1999-07-30 2002-01-07 川崎重工業株式会社 Sandwich structure
EP2930011A1 (en) * 2014-04-07 2015-10-14 AIRBUS HELICOPTERS DEUTSCHLAND GmbH A method of repairing a sandwich component having a honeycomb core with an associated core height

Also Published As

Publication number Publication date
FR3062806A1 (en) 2018-08-17

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