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prepreg tape manufacturing processes

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860035
EISBN: 978-1-62708-338-6
... of programming various geometries using advanced software tools and discusses how various materials, such as rovings, tow-preg, prepreg tape, and woven materials, affect winding program generation. computer numerical controlled winding machines computer-aided manufacturing filament winding prepreg tape...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870119
EISBN: 978-1-62708-314-0
... 2001 , p 2433 – 2444 • Xu G.F. , Repecka L. , and Boyd J. , Cycom X5215—An Epoxy Prepreg That Cures Void Free Out of Autoclave at Low Temperature , 43rd International SAMPE Symposium , May/June 1998 , p 5 – 15 Lay-up processes are ideally suited for the manufacture...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870183
EISBN: 978-1-62708-314-0
... be successfully consolidated in very short times (minutes if not seconds), while woven powder coated or comingled prepregs require longer times for the resin to flow and impregnate the fibers. Occasionally, a process called film stacking is used, in which alternating layers of thermoplastic film and dry woven...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870201
EISBN: 978-1-62708-314-0
... not allow air evacuation; air became trapped in the laminate, resulting in porosity. To circumvent this problem while maintaining the quality advantages of the resin filming process, the manufacturers deliberately began only partially impregnating the prepreg. It should be noted that partially impregnated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870031
EISBN: 978-1-62708-314-0
... operations, such as twisting, weaving, knitting, carding, and felting. Yarns and rovings are used in filament winding, prepreg tape, and pultrusion processes. Applications include missile cases, pressure vessels, sporting goods, cables, and tension members. Aramid paper used in honeycomb sandwich...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860095
EISBN: 978-1-62708-338-6
... derived from test specimens that parallel the configurations of the laminate layup. These are the test specimens that support confidence in the filament winding manufacturing process. Usually, it is not possible to provide A- or B-basis allowables so that the filament-wound structure can be confidently...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
.../Rovings Prepreg (b) (a) Depends on how “highest performance” is defined—high temperature, toughness, and superior mechanical properties. (b) Material form is not driven by performance, but is typically defined by the manufacturing process. Table 18.2 Relative comparison of dry fiber...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550385
EISBN: 978-1-62708-307-2
... are relatively flexible and nonbrittle, they can be processed in most conventional textile operations, such as twisting, weaving, knitting, carding, and felting. Yarns and rovings are used in the filament winding, prepreg tape, and pultrusion processes. Applications include missile cases, pressure vessels...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780383
EISBN: 978-1-62708-281-5
... in the manufacturing process, are often concentrated at surfaces and interfaces. Thus, even minute differences in the bulk can be magnified and detected easily at the surface. Similarly, environmental degradation often has its most pronounced effects at surfaces. The workhorse instrument in surface analysis...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870517
EISBN: 978-1-62708-314-0
... temperature for six to 12 months. An additional concern with wet lay-up patches is that it may be difficult or impossible to match the strength and stiffness of the original structure if the structure is thin and made from unidirectional tape, since the wet lay-up material will be woven cloth. Both prepreg...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870063
EISBN: 978-1-62708-314-0
... Assurance and Processing , ASTM STP 797 , 1983 , p 3 – 14 10.1520/STP28535S 7. Carpenter J.F. , Assessment of Composite Starting Materials: Physiochemical Quality Control of Prepregs , AIAA/ASME Symposium on Aircraft Composites: The Emerging Methodology for Structural Assurance , San...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860115
EISBN: 978-1-62708-338-6
... of the advantages of composites over metals for RMCs. A discussion on a typical design, analysis, and manufacturing operation follows. The chapter introduces the basic design approach and shows some sizing techniques along with example calculations. It discusses the processes involved in the testing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870537
EISBN: 978-1-62708-314-0
... Abstract This chapter discusses the advantages and disadvantages of metal matrix composites and the methods used to produce them. It begins with a review of the composition and properties of aluminum matrix composites. It then describes discontinuous composite processing methods, including stir...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.9781627083386
EISBN: 978-1-62708-338-6
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870373
EISBN: 978-1-62708-314-0
..., knitting, carding, and felting. Yarns and rovings are used in filament-winding, prepreg tape, and pultrusion processes. Applications include missile cases, pressure vessels, sporting goods, cables, and tension members. Although continuous-filament forms dominate composite applications, discontinuous...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870573
EISBN: 978-1-62708-314-0
... process that results in a structure of ultrafine β -SiC particles approximately 1 to 2 nm dispersed in a matrix of amorphous silicon oxide and free carbon. Fiber manufacture consists of synthesizing a spinnable polymer, spinning the polymer into a precursor fiber, curing the fiber to crosslink it so...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610377
EISBN: 978-1-62708-303-4
... sufficient residual strength to resist failure. There are basically two types of damage: defects that occur during the manufacturing process, and damage that the part suffers when placed in service. While large defects that occur during the manufacturing process should be detected during normal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550457
EISBN: 978-1-62708-307-2
... in this sector is DRA. A selectively reinforced piston head was introduced by Toyota Motor Manufacturing in 1983. Produced by squeeze casting, this was a reasonably low-cost and high-rate-production process. The reinforcements provide improved wear resistance and lower thermal conductivity, so that more...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870333
EISBN: 978-1-62708-314-0
... along with best practices and procedures. composite manufacturing radiographic inspection thermographic inspection ultrasonic inspection visual inspection FLAWS CAN OCCUR, unfortunately, at almost any stage of the composite manufacturing process or during service. A summary of some...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540319
EISBN: 978-1-62708-309-6
.... The prepreg (preimpregnated) tapes can be stored in a refrigerator for future use. In making a composite laminate, the prepreg tapes are stacked together and cured in an autoclave under controlled time, temperature, and pressure. Fig. 8.2 Unidirectional versus quasi-isotropic layups Both...