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Optimization of Injection Molding Simulation of Bioabsorbable Bone Screw Using Taguchi Method and Particle Swarm Optimization.

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  • معلومة اضافية
    • نبذة مختصرة :
      Application of metal bone screws for internal fixation has many risks, including infection, temperature sensitivity, and radiologic imaging disturbance. Bioabsorbable bone screws appear to overcome the disadvantages of metal bone screws. Many researchers have developed numerous bioabsorbable bone screws using various kinds of polymers. In this research, polylactic acid (PLA) and polyglycolic acid (PGA) were used as the materials for the bone screw. The injection molding method was used to produce the screws as it is one of the most effective methods in polymer or plastic production. This study aims to understand the effect of injection molding simulation parameters on shrinkage and warpage of bone screw, and to discover the best parameters combination to obtain optimal responses, and compare PLA and PGA bone screws. Injection molding simulation experiments used the Taguchi method, and the optimization process used particle swarm optimization. The results showed that melt temperature, injection time, and packing time had significant effects on shrinkage and warpage of PLA bone screws. Meanwhile, the significant factors for PGA bone screws were mold temperature, melt temperature, and injection time. After the optimization process, the shrinkage and warpage value improved to 2.4233% and 0.0928 mm for PLA bone screws and 8.9592% and 0.4646 mm for PGA bone screws. [ABSTRACT FROM AUTHOR]
    • نبذة مختصرة :
      Copyright of Jordan Journal of Mechanical & Industrial Engineering is the property of Hashemite University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)