Design-for-testing for improved remanufacturability

Research output: Contribution to conferencePaper

Abstract

By definition, a remanufactured product must perform to the same (or higher) level as the original product, and must therefore be issued a warranty of the same (or longer) duration. However, many components of remanufactured products will have been subjected to regular stresses in their first cycle of use and may exhibit unseen signs of damage at a microstructural level. This may not affect the remanufactured product’s performance initially but could cause it to fail before its renewed warranty expires. To combat this, we propose that the integrity of individual components is assessed non-destructively before storage. However, lack of remanufacture specific tools and techniques; particularly non-destructive tools, are major hindrances. Furthermore, ease of non-destructive testing (NDT) is not currently a consideration in the design of components; components with complex geometries may therefore be difficult to test. This paper presents, for the first time, a framework for including NDT suitability as a design criterion at the outset in the component’s lifecycle, where the geometry and surface accessibility of the component are optimised for future assessment. Ensuring that components can be easily inspected would not only allow increased confidence in the structural integrity of remanufactured products, but it would also extend the range of products suitable for remanufacturing. This paper serves as a proof of concept, examining simple inspection scenarios in order to demonstrate how the shape of components and data acquisition geometries can adversely affect the coverage of ultrasonic NDT.

Conference

ConferenceInternational Conference on Remanufacturing
Abbreviated titleICoR
CountrySweden
CityLinköping
Period24/10/1726/10/17
Internet address

Fingerprint

Nondestructive examination
Testing
Geometry
Structural integrity
Warranty
Data acquisition
Inspection
Ultrasonics
Integrity
Remanufacturing
Design
Complex Geometry
Accessibility
Data Acquisition
Life Cycle
Confidence
Coverage
Damage
Cycle
Scenarios

Keywords

  • remanufacturing
  • non-destructive testing
  • NDT

Cite this

Tant, K. M. M., Mulholland, A. J., Curtis, A., & Ijomah, W. L. (2017). Design-for-testing for improved remanufacturability. Paper presented at International Conference on Remanufacturing, Linköping, Sweden.
Tant, Katherine M. M. ; Mulholland, Anthony J. ; Curtis, Andrew ; Ijomah, Winifred L. / Design-for-testing for improved remanufacturability. Paper presented at International Conference on Remanufacturing, Linköping, Sweden.
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Tant, KMM, Mulholland, AJ, Curtis, A & Ijomah, WL 2017, 'Design-for-testing for improved remanufacturability' Paper presented at International Conference on Remanufacturing, Linköping, Sweden, 24/10/17 - 26/10/17, .

Design-for-testing for improved remanufacturability. / Tant, Katherine M. M.; Mulholland, Anthony J.; Curtis, Andrew; Ijomah, Winifred L.

2017. Paper presented at International Conference on Remanufacturing, Linköping, Sweden.

Research output: Contribution to conferencePaper

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T1 - Design-for-testing for improved remanufacturability

AU - Tant, Katherine M. M.

AU - Mulholland, Anthony J.

AU - Curtis, Andrew

AU - Ijomah, Winifred L.

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N2 - By definition, a remanufactured product must perform to the same (or higher) level as the original product, and must therefore be issued a warranty of the same (or longer) duration. However, many components of remanufactured products will have been subjected to regular stresses in their first cycle of use and may exhibit unseen signs of damage at a microstructural level. This may not affect the remanufactured product’s performance initially but could cause it to fail before its renewed warranty expires. To combat this, we propose that the integrity of individual components is assessed non-destructively before storage. However, lack of remanufacture specific tools and techniques; particularly non-destructive tools, are major hindrances. Furthermore, ease of non-destructive testing (NDT) is not currently a consideration in the design of components; components with complex geometries may therefore be difficult to test. This paper presents, for the first time, a framework for including NDT suitability as a design criterion at the outset in the component’s lifecycle, where the geometry and surface accessibility of the component are optimised for future assessment. Ensuring that components can be easily inspected would not only allow increased confidence in the structural integrity of remanufactured products, but it would also extend the range of products suitable for remanufacturing. This paper serves as a proof of concept, examining simple inspection scenarios in order to demonstrate how the shape of components and data acquisition geometries can adversely affect the coverage of ultrasonic NDT.

AB - By definition, a remanufactured product must perform to the same (or higher) level as the original product, and must therefore be issued a warranty of the same (or longer) duration. However, many components of remanufactured products will have been subjected to regular stresses in their first cycle of use and may exhibit unseen signs of damage at a microstructural level. This may not affect the remanufactured product’s performance initially but could cause it to fail before its renewed warranty expires. To combat this, we propose that the integrity of individual components is assessed non-destructively before storage. However, lack of remanufacture specific tools and techniques; particularly non-destructive tools, are major hindrances. Furthermore, ease of non-destructive testing (NDT) is not currently a consideration in the design of components; components with complex geometries may therefore be difficult to test. This paper presents, for the first time, a framework for including NDT suitability as a design criterion at the outset in the component’s lifecycle, where the geometry and surface accessibility of the component are optimised for future assessment. Ensuring that components can be easily inspected would not only allow increased confidence in the structural integrity of remanufactured products, but it would also extend the range of products suitable for remanufacturing. This paper serves as a proof of concept, examining simple inspection scenarios in order to demonstrate how the shape of components and data acquisition geometries can adversely affect the coverage of ultrasonic NDT.

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Tant KMM, Mulholland AJ, Curtis A, Ijomah WL. Design-for-testing for improved remanufacturability. 2017. Paper presented at International Conference on Remanufacturing, Linköping, Sweden.