GB1431668A - Bending of structural panels - Google Patents

Bending of structural panels

Info

Publication number
GB1431668A
GB1431668A GB2811973A GB2811973A GB1431668A GB 1431668 A GB1431668 A GB 1431668A GB 2811973 A GB2811973 A GB 2811973A GB 2811973 A GB2811973 A GB 2811973A GB 1431668 A GB1431668 A GB 1431668A
Authority
GB
United Kingdom
Prior art keywords
bending
panel
wall
bend
rollers
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.)
Expired
Application number
GB2811973A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1431668A publication Critical patent/GB1431668A/en
Expired legal-status Critical Current

Links

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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B29C53/04—Bending or folding of plates or sheets
    • B29C53/06—Forming folding lines by pressing or scoring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/08—Bending by altering the thickness of part of the cross-section of the work
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/38—Introducing air inside the jet
    • F02K1/386—Introducing air inside the jet mixing devices in the jet pipe, e.g. for mixing primary and secondary flow
    • 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
    • B29C37/0053—Moulding articles characterised by the shape of the surface, e.g. ribs, high polish
    • B29C37/0057—Moulding single grooves or ribs, e.g. tear lines
    • 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
    • B29L2024/00—Articles with hollow walls
    • B29L2024/006—Articles with hollow walls multi-channelled

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1431668 Corrugating and bending panels GENERAL ELECTRIC CO 13 June 1973 [5 July 1972] 28119/73 Heading B3E A method of bending a structural panel 50, comprising planar first 52 and second walls 54 sandwiching a filler materia 56, Fig. 4, therebetween, suitable for a turbofan engine mixer comprises deforming a portion of the first wall 52 to form corrugations W and bending the panel with the first wall on the inside of the bend. A panel 50 is fed between a plurality of rollers 60 and an opposed toothed roller 62. The number, size and spacing of the teeth 64 are determined in accordance with the size and bending radius R of the angle to be formed. Rollers (62<SP>1</SP>), (62<SP>11</SP>), Figs. 5, 6 (not shown), may be used for the provision of respective uniform and non-uniform bending radii for a single panel. In an alternative embodiment the toothed roller is replaced by a reciprocable die 70, Fig. 9, which acts against a bearing wall 72 to produce the corrugations on the first wall 52 and bend the panel 50.
GB2811973A 1972-07-05 1973-06-13 Bending of structural panels Expired GB1431668A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26901772A 1972-07-05 1972-07-05

Publications (1)

Publication Number Publication Date
GB1431668A true GB1431668A (en) 1976-04-14

Family

ID=23025483

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2811973A Expired GB1431668A (en) 1972-07-05 1973-06-13 Bending of structural panels

Country Status (8)

Country Link
US (1) US3793865A (en)
JP (1) JPS4944108A (en)
BE (1) BE801970A (en)
CA (1) CA989290A (en)
DE (1) DE2333917A1 (en)
FR (1) FR2196902B1 (en)
GB (1) GB1431668A (en)
IT (1) IT990931B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197810A (en) * 1986-09-22 1988-06-02 Jackson Paul Adrian Southon Sheet metal articles
GB2222791A (en) * 1988-09-15 1990-03-21 Erbsloeh Julius & August A method of bending sandwich plates

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045957A (en) * 1976-02-20 1977-09-06 United Technologies Corporation Combined guide vane and mixer for a gas turbine engine
GB2082259B (en) * 1980-08-15 1984-03-07 Rolls Royce Exhaust flow mixers and nozzles
US4481698A (en) * 1982-06-01 1984-11-13 Salerno Alan F Chuted mixer forming method
GB2123486B (en) * 1982-07-12 1986-01-02 Gen Electric Turbofan mixed flow exhaust system
JPS6436077U (en) * 1987-08-28 1989-03-06
NL8902899A (en) * 1989-11-23 1991-06-17 Schreiner Luchtvaart METHOD FOR MANUFACTURING AN ARTICLE FROM A THERMOPLASTIC SANDWICH MATERIAL
FR2842443B1 (en) * 2002-07-19 2005-02-11 Alfred Chocroun METAL PLATE, ITS MANUFACTURING METHOD AND FOLDING METHOD
DE102006027506B4 (en) * 2006-06-14 2010-06-10 Mtu Aero Engines Gmbh Gas turbine casing and method of manufacturing a gas turbine casing
US9616484B2 (en) * 2008-12-18 2017-04-11 Pratt & Whitney Canada Corp. Method and apparatus for forming a turbofan mixer
DE102009011452A1 (en) * 2009-03-03 2010-09-09 Rolls-Royce Deutschland Ltd & Co Kg Method for producing an ejector nozzle tube
FR3071765B1 (en) * 2017-10-03 2020-11-20 Safran Ceram COMPOSITE MATERIAL REALIZATION OF A FLOW MIXER LOBE STRUCTURE
CN114012875B (en) * 2021-11-24 2022-11-15 西北工业大学 Preform shaping mold of ceramic matrix composite mixer and using method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1978240A (en) * 1931-01-19 1934-10-23 Harley T Wheeler Making of packing rings
US2047001A (en) * 1932-12-10 1936-07-07 Preston Davie Apparatus for making foraminous elements
US2604984A (en) * 1949-03-18 1952-07-29 Seaboard Container Corp Fan-folded stack of corrugated board for tubular containers
FR1260187A (en) * 1960-03-25 1961-05-05 Renault Process for obtaining profiled elements from flat composite panels and profiled elements obtained by this process
US3664170A (en) * 1970-03-16 1972-05-23 Pacific Roller Die Co Inc Curving method and apparatus for ridged sheet material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197810A (en) * 1986-09-22 1988-06-02 Jackson Paul Adrian Southon Sheet metal articles
GB2197810B (en) * 1986-09-22 1990-10-03 Jackson Paul Adrian Southon Sheet metal articles
GB2222791A (en) * 1988-09-15 1990-03-21 Erbsloeh Julius & August A method of bending sandwich plates
DE3831363A1 (en) * 1988-09-15 1990-03-29 Erbsloeh Julius & August METHOD FOR BENDING SANDWICH PLATES

Also Published As

Publication number Publication date
FR2196902A1 (en) 1974-03-22
IT990931B (en) 1975-07-10
CA989290A (en) 1976-05-18
FR2196902B1 (en) 1974-07-05
JPS4944108A (en) 1974-04-25
DE2333917A1 (en) 1974-01-17
BE801970A (en) 1973-11-05
US3793865A (en) 1974-02-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee