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spray lay-up

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003036
EISBN: 978-1-62708-200-6
...Abstract Abstract Wet lay-up using hand or spray techniques is one of the simplest methods of combining a fiber reinforcement with a solidifying resin to form a composite structure. This article describes several wet lay-up processes - including contact molding, spray molding, vacuum bag...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003406
EISBN: 978-1-62708-195-5
... process and spray-up process. Workmanship for hand lay-up and spray-up processes is reviewed. The article provides information on the matrix-resin materials used for open molding, including unsaturated polyester resins, epoxy vinyl ester resins, and reinforcements. It explains the component design...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003434
EISBN: 978-1-62708-195-5
...Abstract Abstract In-process inspection during composite material lay-up is essential if the structural, dimensional, and environmental performance designed into a part is to be consistently achieved. This article discusses the requirements to be met by the facilities and equipment to produce...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003414
EISBN: 978-1-62708-195-5
... to the threat of environmental legislation. The main impetus for the development has always been the elimination of styrene emission. The technology was developed as an alternative to open-mold manufacturing processes like hand lay-up and spray-up. Vacuum infusion was considered as a low-cost alternative...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002492
EISBN: 978-1-62708-194-8
... and extrusion are widely employed. Composites based on thermosetting plastics are processed using specially developed methods, including: Contact molding, which employs single-surface molds, as in hand lay-up, spray-up, and filament winding Compression-type molding, as in sheet molding, bulk molding...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003409
EISBN: 978-1-62708-195-5
... such as chopped fiber, spray up and wet lay-up with heavy (>1 mm, or 0.04 in., thick) fabrics. The process is also uneconomic for simple- shape components of greater that several millimeters thick where more than one component per week is required. For components that have these factors, automated lay-up...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002465
EISBN: 978-1-62708-194-8
... spray-up Liquid Chopped short fiber Yes Yes Yes Random, parallel to mold surface Low Low Fiber-tape lay-down Prepreg tape, wet tape Continuous unidirectional fiber tape Yes Yes Yes Multidirectional, parallel to mandrel Medium Low Pultrusion Wet resin impregnation of fibers during...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003403
EISBN: 978-1-62708-195-5
...Abstract Abstract Composite tooling is the making of tools from composite materials. This article focuses on wet lay-up methods and techniques that are used to fabricate prepreg tooling. It discusses the advantages and disadvantages of composite tools. The article describes the process...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003398
EISBN: 978-1-62708-195-5
... care. It explains the resin selection in designing the composite for use in a particular application. The article illustrates the various methods that are used to process a composite component, namely, wet lay-up, autoclave, resin transfer molding, and vacuum-assisted resin transfer molding...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003401
EISBN: 978-1-62708-195-5
...). This observation indicates that the field of composite manufacturing is developing, albeit not at breakneck speed. What may not be immediately obvious are more subtle developments, some of which are discussed here. Traditional open-mold techniques, such as wet hand lay-up and spray-up, are gradually being...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003019
EISBN: 978-1-62708-200-6
... The SMC method has several advantages over methods such as hand lay-up or spray-up. Having the liquid resin, catalyst, and glass fiber precombined into a unit can allow better quality control over chemistry, mix, and distribution prior to forming. Using matched metal dies is a closed-mold process...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003010
EISBN: 978-1-62708-200-6
... (265–300) (c) 130 (265) Fabrication methods Compression molding Yes Yes Yes Yes Injection molding Yes Yes Yes Yes Transfer molding Yes Yes Yes Yes Autoclave molding Yes Yes … Yes Filament winding … Yes … Yes Spray-up … Yes … … Pultrusion … Yes...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.9781627081955
EISBN: 978-1-62708-195-5
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003366
EISBN: 978-1-62708-195-5
... polyester laminates. This shortcoming is addressed using a phenolic-based surface coat. A thixotropic phenolic-based surface paste is available. The paste is brushed or sprayed on the mold and allowed to partially cure before the glass is applied and the hand lay-up process is completed. The surface paste...
Book Chapter

By Greg Kress
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003392
EISBN: 978-1-62708-195-5
... parts. Source: Ref 1 Wet lay-up, open molding is probably the least expensive process for a relatively small number of units. This is a common process for large- production marine manufacturing, where thick, heavy, woven fiberglass mat and random-oriented chopped fiber are hand or spray...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009071
EISBN: 978-1-62708-177-1
... strength and modulus but differing in fiber shape. (a) Cylindrical carbon fiber shape. Bright-field illumination, 50× objective. (b) Irregular bean-shaped fibers. Bright-field illumination, 25× objective Many methods are used to manufacture fiber-reinforced composites, including hand lay-up...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.9781627082006
EISBN: 978-1-62708-200-6
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001066
EISBN: 978-1-62708-162-7
... mm (0.012 in.) 0.020–0.035 This grain size range includes the largest average grain that will produce parts essentially free of orange peel. For this reason it is used for all sorts of drawn parts produced from brass up to 0.8 mm (0.032 in.) thick. 0.025–0.040 Brass with 0.040 mm average...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003475
EISBN: 978-1-62708-195-5
... sequence of each lamina are selected to achieve composite laminates that meet specific stiffness and dimensional stability requirements. Several lay-up or materials combinations may meet the required performance parameters; selection of the final lay-up and materials combinations finally depends...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003020
EISBN: 978-1-62708-200-6
..., such as hand lay-up, may increasingly be chosen to make a number of components. Because of its cost, it is unlikely that this technique can be used to make a significant quantity of parts. At the other end of the spectrum are the compression molding and thermoplastic stamping processes. The equipment required...