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composite repair

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Published: 01 November 2010
Fig. 19.1 Typical composite repairs. Source: Ref 1 More
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Published: 01 November 2010
Fig. 19.11 Composite laminate bonded repair approaches More
Image
Published: 01 November 2010
Fig. 19.18 Composite honeycomb minor repair. Source: Ref 1 More
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Published: 01 June 2016
Fig. 11.9 Composite coatings using the low-pressure cold spray system for repair. (a) Al-SiC coating on steel. (b) Al-Al 2 O 3 coating on cast iron. Source: Ref 11.12 , 11.13 More
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
... Abstract This chapter discusses the primary methods used to repair composites, including fill repairs, injection repairs, bolted repairs, and bonded repairs. It also discusses issues associated with field repairs. composite repair composites REPAIRS CAN BE CATEGORIZED as fill...
Image
Published: 01 November 2010
Fig. 19.19 Composite honeycomb bonded repairs More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930179
EISBN: 978-1-62708-359-1
... of component history in terms of: Component function Material composition Component surface or through hardness Part originally cast, fabricated, or welded Repair welding can fall into one of three general categories: repair of weld defects, repair of failed parts, and repair of worn parts...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460277
EISBN: 978-1-62708-285-3
... and foremost are the coating microstructure, density, phase evolution (for alloy systems), and distribution (for composite coatings). The coating surface finish and residual stress play especially important roles in applications in which it is common for localized or patch repairs to be carried out...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460227
EISBN: 978-1-62708-285-3
... reported an annual cost for H-60 main gearbox corrosion of $10.8 million to the Navy and $6.7 million to the Army, for a total of approximately $17.5 million for 600 helicopters. Conventional repair processes such as welding, plating, or patching with composite material often either impart additional...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870333
EISBN: 978-1-62708-314-0
... degrees of damage. It is important to be able to reliably find these types of flaws and damage and repair them if warranted. Fig. 12.1 Potential for damage in composite parts Nondestructive inspection (NDI) methods are normally used to inspect completed parts and bonded assemblies to make...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
... outstanding damage tolerance. The third design, which is the first composite structure, cocured carbon/epoxy, scored high marks where one would expect: in stiffness, weight, and fatigue resistance. However, the nonrecurring tooling costs are high, and the damage tolerance and repairability of the structure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870449
EISBN: 978-1-62708-314-0
... of the basic structure first can often compromise the design of the joints, resulting in lower overall structural efficiency and possibly producing a structure that is more difficult to repair. Two primary methods of joining are used for polymer matrix composites: mechanical fastening and adhesive bonding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280323
EISBN: 978-1-62708-267-9
... Abstract This chapter discusses the failure of superalloy components in high-temperature applications where they are subject to the effects of microstructural changes, melting, and corrosion. It explains how overheating can deplete alloying elements and alter the composition and distribution...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930329
EISBN: 978-1-62708-359-1
... and for overlay cladding, service conditions during repair, and welding procedural idiosyncrasies of cobalt-base alloys. chemical composition fusion zone segregation grain boundary precipitation grain growth heat treatment heat-affected zone hot cracking nickel alloys porosity weldability...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200295
EISBN: 978-1-62708-354-6
... Abstract Nickel-base castings are produced from a group of alloys with compositions that are typically greater than 50% Ni and less than 10% iron. This chapter presents the casting compositions of nickel-base alloys. It then provides an overview of heat treatment, mechanical properties...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870101
EISBN: 978-1-62708-314-0
... Abstract This chapter discusses the tooling used for autoclave curing, one of the most common composite fabrication processes. The discussion covers curing practices, material selection factors, and design challenges associated with thermal expansion, tool shrinkage, part complexity...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870001
EISBN: 978-1-62708-314-0
... load (they should not be used where load paths are complex, such as with lugs and fittings); susceptibility to impact damage and delaminations or ply separations; and greater difficulty in repairing them compared to metallic structures. The major cost driver in fabrication for a composite part...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030245
EISBN: 978-1-62708-349-2
.... In designing composite aircraft structures, the cost and efficiency of repairs and maintenance must be considered as well as the initial component cost. Assessing the extent of damage in a polymer composite structure after a lightning strike is a key element in developing future aircraft composite parts...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200220
EISBN: 978-1-62708-354-6
... with repairing castings that have been returned to the foundry Internal Failure Costs are expenses incurred in manufacturing castings that are scrapped in the foundry Rework Costs are the costs of welding casting discontinuities in the foundry Fig. 17-3 Quality cost report Quality costs...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870235
EISBN: 978-1-62708-314-0
... Abstract This chapter explains how polymeric adhesives are applied to composite as well as metal parts, forming bonded structures. It describes surface preparation practices and techniques, epoxy selection and use, and bonding procedures. adhesive bonding epoxy adhesives surface...