An adaptive tolerancing algorithm for freeform profiles

Research output: Contribution to journalArticle

Abstract

Manufacturing of freeform surfaces demands the development of tolerances based on the functionality of parts. Functionally critical portions of a surface can usually be described using the curvature of designed products. A uniform tolerance zone along the nominal freeform profile may not fulfill the functionality of the designed part, i.e. it allows the curvature to increase indefinitely inside the tolerance zone. This will affect greatly in the aerospace, automotive and other high value products. An adaptive tolerancing method based on the local curvature of a profile is presented to define smaller tolerance bands to reject non-functional products.
LanguageEnglish
Pages185-189
Number of pages5
JournalProcedia CIRP
Volume75
DOIs
Publication statusPublished - 3 Sep 2018
Event15th CIRP Conference on Computer Aided Tolerancing: Managing Uncertainty in the New Manufacturing Era - Milan, Italy
Duration: 11 Jun 201813 Jun 2018
Conference number: 15
http://www.cirpcat2018.polimi.it/ (Link to Conference Website)

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title = "An adaptive tolerancing algorithm for freeform profiles",
abstract = "Manufacturing of freeform surfaces demands the development of tolerances based on the functionality of parts. Functionally critical portions of a surface can usually be described using the curvature of designed products. A uniform tolerance zone along the nominal freeform profile may not fulfill the functionality of the designed part, i.e. it allows the curvature to increase indefinitely inside the tolerance zone. This will affect greatly in the aerospace, automotive and other high value products. An adaptive tolerancing method based on the local curvature of a profile is presented to define smaller tolerance bands to reject non-functional products.",
keywords = "Tolerance, Tolerance zone, Freeform, Curvature",
author = "Luca Pagani and Qunfen Qi and Jian Wang and Xiangqian Jiang and Scott, {Paul J.}",
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An adaptive tolerancing algorithm for freeform profiles. / Pagani, Luca; Qi, Qunfen; Wang, Jian; Jiang, Xiangqian; Scott, Paul J.

In: Procedia CIRP, Vol. 75, 03.09.2018, p. 185-189.

Research output: Contribution to journalArticle

TY - JOUR

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AU - Pagani, Luca

AU - Qi, Qunfen

AU - Wang, Jian

AU - Jiang, Xiangqian

AU - Scott, Paul J.

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AB - Manufacturing of freeform surfaces demands the development of tolerances based on the functionality of parts. Functionally critical portions of a surface can usually be described using the curvature of designed products. A uniform tolerance zone along the nominal freeform profile may not fulfill the functionality of the designed part, i.e. it allows the curvature to increase indefinitely inside the tolerance zone. This will affect greatly in the aerospace, automotive and other high value products. An adaptive tolerancing method based on the local curvature of a profile is presented to define smaller tolerance bands to reject non-functional products.

KW - Tolerance

KW - Tolerance zone

KW - Freeform

KW - Curvature

U2 - 10.1016/j.procir.2018.04.044

DO - 10.1016/j.procir.2018.04.044

M3 - Article

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EP - 189

JO - Procedia CIRP

T2 - Procedia CIRP

JF - Procedia CIRP

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