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    • Keywords


      Fused deposition modeling; chemical vapor smoothing; silicon molding; investment casting; biocompatibility; invitro analysis.

    • Abstract


      In this work, a detailed procedure for the development of biomedical implant (SS-316L) by combining fused deposition modeling (FDM), chemical vapor smoothing (CVS), silicon molding (SM) and investment casting (IC) for batch production has been outlined. In spite of being biocompatible and bioactivewithin the body, the implant must possess good surface quality and dimensional accuracy along with sufficient hardness in order to reduce the wear inside the body. So in this research work, investigations have been made on the surface finish, dimensional accuracy and hardness of the implants by varying two controllable factors of the IC process (drying time of primary coating and mould thickness). The tolerance grades for the selected dimension of the casted implants were within the allowable range as defined in UNI EN 20286-I (1995) standardof ISO. The process capability indices (Cp and Cpk) values greater than 1.33 for the surface hardness and radial dimension indicated that the proposed process is statistically controlled. Further, in order to evaluate the biocompatibility, an in vitro study was conducted to ensure the attachment of mouse embryonic fibroblasts cells (NIH-3T3) to the casted samples. The results of invitro study indicated that samples were capable of supporting cell adhesion and cell proliferation and hence can be used for tissue engineering.

    • Author Affiliations



      1. Mechanical Engineering Department, Lovely Professional University, Phagwara 144411, India
      2. Production Engineering Department, Guru Nanak Dev Engineering College, Ludhiana 141006, India
      3. Mechanical Engineering Department, Guru Nanak Dev Engineering College, Ludhiana 141006, India
      4. Department of Zoology, Delhi University, Delhi 110007, India
    • Dates

  • Sadhana | News

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