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IJAT Vol.4 No.3 pp. 291-302
doi: 10.20965/ijat.2010.p0291
(2010)

Paper:

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Machining Porous Calcium Polyphosphate Implants for Tissue Engineering Applications

Amir Rouzrokh*, Christina Yi-HsuanWei*, Kaan Erkorkmaz*, and Robert M. Pilliar**

*Department of Mechanical & Mechatronics Engineering, University of Waterloo, 200 University Ave West, Waterloo, Ontario N2L 3G1, Canada

**Faculty of Dentistry, Institute of Biomaterials & Biomedical Engineering, University of Toronto, 124 Edward Street, Toronto, Ontario M5G 1G6, Canada

Received:
January 11, 2010
Accepted:
March 26, 2010
Published:
May 5, 2010
Creative Commons License
Keywords:
calcium polyphosphate, milling, 5-axis machining, tissue engineering
Abstract
The emergence of biodegradable bone substitute materials promises new breakthroughs in the field of tissue engineering. However, such materials like Hydroxyapatite and Calcium Polyphosphate (CPP) are relatively new in the world of manufacturing. Reliable processing data is required in order optimize the production of biomedical implants made from these materials. This paper investigates the machining characteristics of CPP.Milling studies are conducted to determine the suitable cutting speeds and conditions which produce accurately machined porous surfaces. This is required for the CPP material to fulfill its biomedical function. A force model is also developed by identifying the cutting coefficients, which helps to predict and limit the machining forces, thereby avoiding unwanted chipping of the implant. Results of these studies have been successfully incorporated into planning the 5-axis machining of a CPP construct for a tissue engineered tibial-plateu (lower knee joint) implant.
Cite this article as:
A. Rouzrokh, C. Yi-HsuanWei, K. Erkorkmaz, and R. Pilliar, “Machining Porous Calcium Polyphosphate Implants for Tissue Engineering Applications,” Int. J. Automation Technol., Vol.4 No.3, pp. 291-302, 2010.
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