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Out-of-roundness compensation technique in machining of femoral head prosthesis using conventional CNC machine
The International Journal of Advanced Manufacturing Technology ( IF 2.496 ) Pub Date : 2020-03-23 , DOI: 10.1007/s00170-020-05149-5
Saran Keeratihattayakorn, Pairat Tangpornprasert, Warich Prasongcharoen, Chanyaphan Virulsri

Abstract In manufacturing of femoral head prostheses, the roundness of the femoral head is important. In order to reduce out-of-roundness when machining with a conventional CNC machine, a compensation technique with a fast tool servo was developed. The fast tool servo with piezoelectric actuator was fabricated and installed on a conventional CNC machine, and a compensation technique was implemented to compensate for the out-of-roundness. The profiles of machined femoral heads were analyzed and used to develop a representative profile. The experiment was conducted to confirm the prior statistical analysis. The results show that the compensation technique reduced the out-of-roundness of femoral head prostheses to 4.04 ± 0.54 μm.
更新日期:2020-03-24

 

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