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Materials Science in Additive Manufacturing                              3D-Printed hip joints performance
































            Figure 2. Fabrication process of an artificial hip joint























                                                               Figure  4. Fabrication of a bracket for the artificial hip joint
                                                               compression test

            Figure 3. Template installation for the artificial hip joint bracket
                                                               (Figure  4). The compression test was then performed
                                                               according to the scheme as shown in Figure 5.
              The artificial hip joint samples were then subjected to
            a compression test using the universal testing machine   2.2. Materials used in 3D printing
            (JTMS510, J.T.M. Technology Co., Ltd., China). The   Photopolymer  resins  are  commonly  used  in
            compression  test  was  performed  until  the  artificial  hip   photopolymerization-based  processes  such  as  SLA  and
            joint was deformed or damaged. The standard used in   digital light processing. Photopolymerization involves
            this test was ISO 7206-6.  To install the artificial hip joint   the use of monomers or oligomers in a liquid state,
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            on the bracket according to the standard provisions, a   along with a photoinitiator, which converts light energy
            template was created using FDM 3D printing (Figure 3).   into reactive species and initiates the polymerization
            After creating the template, the next step was to lock   process.  The  photopolymer  resin  was  mixed  with  the
            the position of the artificial hip joint with a bracket. The   TiO  nanoparticles–chemicals in the form of white solid
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            bracket was constructed using a 3-inch diameter polyvinyl   granules–to strengthen the resin matrix. This material
            chloride pipe, which was then cast with a cement mixture   is considered technologically important due to several


            Volume 4 Issue 3 (2025)                         3                         doi: 10.36922/MSAM025200032
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