Details
| Original language | English |
|---|---|
| Pages (from-to) | 22-33 |
| Number of pages | 12 |
| Journal | CIRP Journal of Manufacturing Science and Technology |
| Volume | 6 |
| Issue number | 1 |
| Early online date | 18 Aug 2012 |
| Publication status | Published - 2013 |
Abstract
Applying bioceramics for complex-shaped endoprostheses promises to improve the implant durability significantly. High precision grinding and polishing processes for free-formed ceramic surfaces are therefore essential. The contact conditions for grinding with toric pins are focused to ensure a constant material removal along the tool path. Based on the geometrical intersection, it is possible to calculate the roughness. Furthermore, the grinding layer topography and the grinding kinematics are taken into account to predict the resulting roughness, which is verified by grinding experiments. The wear of machined ceramic pairings is therefore reduced by a factor of 30 compared to conventional cobalt-chrome-polyethylene pairings.
Keywords
- Biomedical ceramics, Five-axis machining, Modeling, Roughness prediction, Toric grinding pins
ASJC Scopus subject areas
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: CIRP Journal of Manufacturing Science and Technology, Vol. 6, No. 1, 2013, p. 22-33.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A roughness model for the machining of biomedical ceramics by toric grinding pins
AU - Denkena, Berend
AU - Köhler, Jens
AU - Van der Meer, Marijke
N1 - Funding information: This research is supported by the German Research Foundation (DFG) within the frame of the Collaborative Research Center CRC 599 “Sustainable Bioresorbable and Permanent Implants of Metallic and Ceramic Materials”. We appreciate the cooperation with our project partners from the Laboratory for Biomechanics and Biomaterials of the Medical University of Hannover.
PY - 2013
Y1 - 2013
N2 - Applying bioceramics for complex-shaped endoprostheses promises to improve the implant durability significantly. High precision grinding and polishing processes for free-formed ceramic surfaces are therefore essential. The contact conditions for grinding with toric pins are focused to ensure a constant material removal along the tool path. Based on the geometrical intersection, it is possible to calculate the roughness. Furthermore, the grinding layer topography and the grinding kinematics are taken into account to predict the resulting roughness, which is verified by grinding experiments. The wear of machined ceramic pairings is therefore reduced by a factor of 30 compared to conventional cobalt-chrome-polyethylene pairings.
AB - Applying bioceramics for complex-shaped endoprostheses promises to improve the implant durability significantly. High precision grinding and polishing processes for free-formed ceramic surfaces are therefore essential. The contact conditions for grinding with toric pins are focused to ensure a constant material removal along the tool path. Based on the geometrical intersection, it is possible to calculate the roughness. Furthermore, the grinding layer topography and the grinding kinematics are taken into account to predict the resulting roughness, which is verified by grinding experiments. The wear of machined ceramic pairings is therefore reduced by a factor of 30 compared to conventional cobalt-chrome-polyethylene pairings.
KW - Biomedical ceramics
KW - Five-axis machining
KW - Modeling
KW - Roughness prediction
KW - Toric grinding pins
UR - http://www.scopus.com/inward/record.url?scp=84871709686&partnerID=8YFLogxK
U2 - 10.1016/j.cirpj.2012.07.002
DO - 10.1016/j.cirpj.2012.07.002
M3 - Article
AN - SCOPUS:84871709686
VL - 6
SP - 22
EP - 33
JO - CIRP Journal of Manufacturing Science and Technology
JF - CIRP Journal of Manufacturing Science and Technology
SN - 1755-5817
IS - 1
ER -