Close-to-process compensation of geometric deviations on implants based on optical measurement data

Research output: Contribution to journalConference articleResearchpeer review

Authors

  • Berend Denkena
  • Benjamin Bergmann
  • Sebastian Kaiser
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Details

Original languageEnglish
Pages (from-to)122-127
Number of pages6
JournalProcedia CIRP
Volume112
Early online date22 Sept 2022
Publication statusPublished - 2022
Event15th CIRP Conference on Intelligent Computation in Manufacturing Engineering, ICME 2021 - Naples, Italy
Duration: 14 Jul 202116 Jul 2021

Abstract

The production of implants is challenging due to their complex shapes, the filigree structures and the great regulatory effort. Therefore, a manufacturing cell with an integrated optical measurement was realized. The measurement system is used to determine the geometric deviations and to fulfill the documentation obligation. The measurement data are used to create a matrix containing the nominal coordinates and the error vector for compensation points at the relevant shapes. Based on this, the corresponding tool-path segments are isolated in the G-Code and compensated in order to reduce the geometric deviations. With this method, the deviation could be reduced by 85 %. However, it is pointed out, that the result of the compensation strongly depends on the quality of the optical measurement data.

Keywords

    Compensation, G-Code Adaption, Implant production, Optical measurement

ASJC Scopus subject areas

Cite this

Close-to-process compensation of geometric deviations on implants based on optical measurement data. / Denkena, Berend; Bergmann, Benjamin; Kaiser, Sebastian.
In: Procedia CIRP, Vol. 112, 2022, p. 122-127.

Research output: Contribution to journalConference articleResearchpeer review

Denkena B, Bergmann B, Kaiser S. Close-to-process compensation of geometric deviations on implants based on optical measurement data. Procedia CIRP. 2022;112:122-127. Epub 2022 Sept 22. doi: 10.1016/j.procir.2022.09.049
Denkena, Berend ; Bergmann, Benjamin ; Kaiser, Sebastian. / Close-to-process compensation of geometric deviations on implants based on optical measurement data. In: Procedia CIRP. 2022 ; Vol. 112. pp. 122-127.
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abstract = "The production of implants is challenging due to their complex shapes, the filigree structures and the great regulatory effort. Therefore, a manufacturing cell with an integrated optical measurement was realized. The measurement system is used to determine the geometric deviations and to fulfill the documentation obligation. The measurement data are used to create a matrix containing the nominal coordinates and the error vector for compensation points at the relevant shapes. Based on this, the corresponding tool-path segments are isolated in the G-Code and compensated in order to reduce the geometric deviations. With this method, the deviation could be reduced by 85 %. However, it is pointed out, that the result of the compensation strongly depends on the quality of the optical measurement data.",
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