GB1426476A - Process in the manufacture of composite materials - Google Patents

Process in the manufacture of composite materials

Info

Publication number
GB1426476A
GB1426476A GB3005573A GB3005573A GB1426476A GB 1426476 A GB1426476 A GB 1426476A GB 3005573 A GB3005573 A GB 3005573A GB 3005573 A GB3005573 A GB 3005573A GB 1426476 A GB1426476 A GB 1426476A
Authority
GB
United Kingdom
Prior art keywords
platens
pressure
tapes
matrix
temperature
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
GB3005573A
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.)
Raytheon Technologies Corp
Original Assignee
United Aircraft Corp
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 United Aircraft Corp filed Critical United Aircraft Corp
Publication of GB1426476A publication Critical patent/GB1426476A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
    • C22C47/02—Pretreatment of the fibres or filaments
    • C22C47/06—Pretreatment of the fibres or filaments by forming the fibres or filaments into a preformed structure, e.g. using a temporary binder to form a mat-like element
    • C22C47/062—Pretreatment of the fibres or filaments by forming the fibres or filaments into a preformed structure, e.g. using a temporary binder to form a mat-like element from wires or filaments only
    • C22C47/068—Aligning wires
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
    • C22C47/20—Making alloys containing metallic or non-metallic fibres or filaments by subjecting to pressure and heat an assembly comprising at least one metal layer or sheet and one layer of fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

1426476 Making reinforced metal composites UNITED AIRCRAFT CORP 25 June 1973 [10 July 1972] 30055/73 Heading B3A A method of making a plasma sprayed aluminium or aluminium alloy composites reinforced with a plurality of filaments comprises placing at least one composite tape having a plurality of unidirectional filaments embedded in a plasma sprayed matrix between heated platens, pressing the tape or tapes between the platens for 2-40 minutes in air at 7-700 kg./cm.<SP>2</SP> to densify the matrix, the temperature of the platens being below the solidus temperature of the matrix when the pressure is 140- 700 kg./cm.<SP>2</SP> and between solidus and liquidus when the pressure is 7-140 kg./cm.<SP>2</SP>, the temperature, pressure and pressing time being sufficiently high to cause bonding of the matrix to the filaments without degradation. The composite tape may have a foil backing for ease of handling and when a plurality of tapes are stacked together between the platens, the filaments may be uniaxial or laid as cross-plies at various angles. The filaments are selected from the group boron, silicon carbide, silicon carbide coated boron, boron carbide, alumina or carbon. Preferably a stack of aligned tapes is held between the closed platens at a low pressure to allow them to regain their original temperature and then a pressure of 35-140 kg./cm.<SP>2</SP> is applied for bonding to occur in 2-15 minutes. After bonding, the platens are opened, the tapes advanced and the process is repeated. Alternatively a higher bonding pressure of 140- 350 kg./cm.<SP>2</SP> may be used, in which case the platens are below the solidus temperature of the matrix and for economic reasons not more than 25‹ C. below. The tapes should be brought to temperature rapidly to obviate the need for a vacuum or an inert atmosphere and bonding is achieved in a short time at low pressure thereby avoiding fibre degradation and crushing in the case of cross plied composites.
GB3005573A 1972-07-10 1973-06-25 Process in the manufacture of composite materials Expired GB1426476A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27012472A 1972-07-10 1972-07-10

Publications (1)

Publication Number Publication Date
GB1426476A true GB1426476A (en) 1976-02-25

Family

ID=23030005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3005573A Expired GB1426476A (en) 1972-07-10 1973-06-25 Process in the manufacture of composite materials

Country Status (5)

Country Link
JP (1) JPS4953109A (en)
DE (1) DE2330336A1 (en)
FR (1) FR2191978B1 (en)
GB (1) GB1426476A (en)
SE (1) SE389878B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3000171C2 (en) * 1980-01-04 1982-04-29 Vereinigte Aluminium-Werke Ag, 5300 Bonn Fiber-reinforced composite material and process for its manufacture
EP0032355B1 (en) * 1980-01-04 1984-05-09 Vereinigte Aluminium-Werke Aktiengesellschaft Fibre reinforced composite material and process for its production
JPS59100235A (en) * 1982-11-27 1984-06-09 Nippon Carbon Co Ltd Production of composite material of aluminum reinforced with silicon carbide fiber
CN112845590A (en) * 2021-03-10 2021-05-28 宁夏东方钽业股份有限公司 Metal foil and preparation method thereof

Also Published As

Publication number Publication date
FR2191978A1 (en) 1974-02-08
FR2191978B1 (en) 1978-12-15
SE389878B (en) 1976-11-22
JPS4953109A (en) 1974-05-23
DE2330336A1 (en) 1975-01-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee