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designing for repairability

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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
... in the repair manual must be followed to the letter. A repair that is done incorrectly can often result in a second, more extensive and complicated repair. Information on the design of bolted repairs is given in Ref 2 , while Ref 3 covers bonded repair designs. Detailed procedures for many composite...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780189
EISBN: 978-1-62708-268-6
... efficacy. Evaluate other potential failure causes as corrective action candidates, and incorporate preventive actions where it makes sense to do so. Incorporate failure analysis findings into a failure analysis library, design and process guidelines, and troubleshooting and repair documents...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610303
EISBN: 978-1-62708-303-4
... to sustain defects or cracks safely, until such time that action is (or can be) taken to eliminate the cracks by repair or by replacing the cracked structure or component . In the design stage, one still has the option to select a more crack-resistant material or improve the structural design to ensure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930179
EISBN: 978-1-62708-359-1
... require samples of some of the base metal from the workpiece to be repaired. Nature of Failure When designing and producing a successful repair, it is often necessary to assess the reasons that a repair is required. Failures can be grouped into four major categories: Base-metal defects...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460227
EISBN: 978-1-62708-285-3
... spray repairs. The requirements and specifcations were presented in the Materials Joint Test Protocol (JTP) ( Ref 9.11 , 9.14 – 9.16 ). The JTP comprises mechanical, physical, and chemical tests designed specifically for the repair of the magnesium transmission housings. The cold spray process...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200164
EISBN: 978-1-62708-354-6
... high production runs are required, the foam patterns are produced in specially designed tools, Figure 12-6 . The full mold process for producing steel castings has not been fully developed at this time. Fig. 12-6 Tools for foam patterns Pattern Repairs Polyester putties are used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270059
EISBN: 978-1-62708-301-0
... Abstract This chapter discusses some of the ways that the lessons learned from failures have benefitted society, leading to improved product designs, better materials, safer industrial processes, and more robust codes and standards. It also provides several examples of how the technology...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120039
EISBN: 978-1-62708-269-3
... as completely as possible. (Weld repair, if it is required at all, should be limited as far as possible to noncritical areas.) Unnecessary tooling complexity should be avoided. The casting envelope should be designed for smooth transitions between thick and thin areas, to contain generous radii...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
... resistance but high in cost and damage tolerance/repairability. The second design is a titanium structure fabricated using superplastic forming/diffusion bonding. Its stiffness is better than that of the aluminum structure, but it is heavier and the nonrecurring tooling cost is high. However, it has...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2010
DOI: 10.31399/asm.tb.hss.t52790229
EISBN: 978-1-62708-356-0
...-hand equipment. The cars are even lighter than when originally built, because of the elimination of individual generators for heating, cooling, and lighting in each car, but still approximately 15% heavier than cars made today with computer-assisted designs that reduce section thickness...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310213
EISBN: 978-1-62708-286-0
... to which this is objectionable is a function of design, and tolerances can be held tightly at a cost. Width tolerance is normally +1/16 in./–0 in 48 in., while length is held to +1/8 in./–0 in 10 ft or less. Maximum camber is 3/32 in. in 8 ft. Closer tolerances can be negotiated. Maintenance and Repair...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870267
EISBN: 978-1-62708-344-7
... of assembly damage and operating overload, the importance of surface cleanliness and finish, and the role of inspection, testing, replacement, and repair in safe-life and fail-safe designs. Examples highlighting the benefits and potential pitfalls of proof loading tests are included as well. References...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780183
EISBN: 978-1-62708-268-6
... Abstract Corrective action means the implementation or modification of things designed to eliminate or reduce failure causes. This chapter addresses developing potential solutions and selecting the best solution. It discusses the special operations that should be used only as temporary...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200220
EISBN: 978-1-62708-354-6
... in the subsequent production castings. Full scale destructive tests are sometimes performed in pilot castings to evaluate the casting design. If needed, design changes can be made by the casting purchaser before proceeding with production of the order. Inspection, Upgrading and Repair A series of quality...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780081
EISBN: 978-1-62708-268-6
... as is” or “repair” dispositions, the nonconforming items are deemed acceptable for use, but they do not conform to the engineering drawings. In effect, they are design changes not shown in the engineering drawings. For this reason, the failure analysis team should review all quality-assurance documentation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910001
EISBN: 978-1-62708-250-1
... The application of rational design principles can eliminate many corrosion problems and greatly reduce the time and cost associated with corrosion maintenance and repair. Corrosion often occurs in dead spaces or crevices where the corrosive medium becomes more corrosive. These areas can be eliminated or minimized...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280323
EISBN: 978-1-62708-267-9
... of phases, and how these processes contribute to microstructural changes as a function of time, temperature, and applied stress. It also describes several failure examples and discusses related issues, including damage recovery, refurbishment, and repair. microstructure gas turbine components...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460277
EISBN: 978-1-62708-285-3
... Abstract This chapter focuses on high-pressure cold spray applications pertaining to repair and refurbishment in the aerospace, oil and gas, and power-generation industries, the last specifically involving repair of gas turbine components. Advantages of cold spray coating in the repair...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090349
EISBN: 978-1-62708-266-2
... from austenitic stainless steel have suffered from stress-corrosion cracking (SCC). This has resulted in loss of plant availability, increased cost of electrical energy, and increased exposure to radiation of skilled personnel involved in inspection and repair operations ( Ref 15.1 ). This chapter...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700215
EISBN: 978-1-62708-279-2
...-Strength Steel Applications: Design and Stamping Process Guidelines” ( Ref 14.2 ), was released in January 2010 by the Auto Steel Partnership (ASP). The WorldAutoSteel document is a leading information resource for people developing, making, and using AHSS. The document contains 338 pages and hundreds...