FR2419150A1 - Converting asymmetric fabrics to smooth moulded forms - by manual stretching to fit a hollow mould - Google Patents

Converting asymmetric fabrics to smooth moulded forms - by manual stretching to fit a hollow mould

Info

Publication number
FR2419150A1
FR2419150A1 FR7807545A FR7807545A FR2419150A1 FR 2419150 A1 FR2419150 A1 FR 2419150A1 FR 7807545 A FR7807545 A FR 7807545A FR 7807545 A FR7807545 A FR 7807545A FR 2419150 A1 FR2419150 A1 FR 2419150A1
Authority
FR
France
Prior art keywords
sheet
mould
fit
hollow mould
assymetric
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.)
Withdrawn
Application number
FR7807545A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7807545A priority Critical patent/FR2419150A1/en
Publication of FR2419150A1 publication Critical patent/FR2419150A1/en
Withdrawn legal-status Critical Current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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/56—Tensioning reinforcements before or during shaping
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of material
    • B29C51/004—Textile or other fibrous material made from plastics fibres
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • 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
    • B29L2031/14—Filters

Abstract

Sheet plastics fabric or mesh of assymetric extensibility is converted to a smooth moulded form by impregnating the sheet with a liquid resin and draping the sheet over a hollow mould using manual tension to obtain a good fit. The shaped sheet is then clamped, e.g. against a groove, around the mould base while the resin hardens. The moulding is devered from the clamped material, e.g. by cutting into a subsidiary groove, and disengaged from the mould by a ram passing through the hollow former. The procedure produces mouldings free from creases or wrinkles typical of assymetric fabric formed by a symmetrical mechanical forming mechanism.
FR7807545A 1978-03-09 1978-03-09 Converting asymmetric fabrics to smooth moulded forms - by manual stretching to fit a hollow mould Withdrawn FR2419150A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7807545A FR2419150A1 (en) 1978-03-09 1978-03-09 Converting asymmetric fabrics to smooth moulded forms - by manual stretching to fit a hollow mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7807545A FR2419150A1 (en) 1978-03-09 1978-03-09 Converting asymmetric fabrics to smooth moulded forms - by manual stretching to fit a hollow mould

Publications (1)

Publication Number Publication Date
FR2419150A1 true FR2419150A1 (en) 1979-10-05

Family

ID=9205847

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807545A Withdrawn FR2419150A1 (en) 1978-03-09 1978-03-09 Converting asymmetric fabrics to smooth moulded forms - by manual stretching to fit a hollow mould

Country Status (1)

Country Link
FR (1) FR2419150A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160167317A1 (en) * 2014-12-15 2016-06-16 Spirit Aerosystems, Inc. Secondary groove for work piece retention during machining

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160167317A1 (en) * 2014-12-15 2016-06-16 Spirit Aerosystems, Inc. Secondary groove for work piece retention during machining
US9579855B2 (en) * 2014-12-15 2017-02-28 Spirit Aerosystems, Inc. Secondary groove for work piece retention during machining

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Legal Events

Date Code Title Description
ST Notification of lapse