An adaptive tolerancing algorithm for freeform profiles

Luca Pagani, Qunfen Qi, Jian Wang, Xiangqian Jiang, Paul J. Scott

Research output: Contribution to journalConference articlepeer-review


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.
Original languageEnglish
Pages (from-to)185-189
Number of pages5
JournalProcedia CIRP
Early online date3 Sep 2018
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 (Link to Conference Website)


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