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All Journal Advance Sustainable Science, Engineering and Technology (ASSET) Jurnal Pendidikan Teknik Mesin
Athanasius Priharyoto Bayuseno
Diponegoro University
Chemistry Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Cam Simulation and Dimensional Verification of CNC-Machined Orthopaedic Femoral Components: Toolpath Optimization and 3D-Scan Metrology Yuris Setyoadi; Rifky Ismail; Athanasius Priharyoto Bayuseno; I Nyoman Jujur; Robin Novriansyah; Darmanto; Hartanto Prawibowo; Paulus Wisnu Anggoro
Advance Sustainable Science Engineering and Technology Vol. 8 No. 2 (2026): February-April
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i2.2760

Abstract

This study investigates the optimization of manufacturing femoral components for Total Knee Replacement (TKR) using Computer-Aided Manufacturing (CAM) simulation and 5-axis CNC milling, followed by dimensional verification based on 3D scanning. The machining process was simulated in Autodesk PowerMill to generate collision-free toolpaths for AISI 316L stainless steel. Dimensional verification was conducted by comparing the 3D-scanned physical model (using Creality CR-Scan Ferret Pro) with the original CAD model in Geomagic Control X. The metrological analysis showed a Root Mean Square (RMS) deviation of 0.5317 mm and an average positive deviation of 0.2572 mm. Spatial deviation analysis revealed significant dimensional variations, with a maximum deviation of +2.5761 mm and a minimum deviation of -2.5713 mm. Specifically, in critical functional regions, the medial and lateral condyles exhibited deviations ranging from -0.4683 mm to 0.232 mm, while the patellar groove showed a deviation of 0.1989 mm. Although the machining strategy successfully produced the complex implant geometry, the tolerance distribution data indicated that only 17.22% of the surface fell within the strictly specified tolerances, highlighting the need for further optimization of cutting parameters and fixturing strategies to minimize surface roughness and dimensional inaccuracies.
THREE-DIMENSIONAL FEA OF FIXTURE DIAMETER INFLUENCE ON ABUTMENT AND SCREW IN ANTERIOR MAXILLA BRIDGES Beni Aji Subekti; Kriswanto; Febri Budi Darsono; Rahmat Doni Widodo; J. Jamari; Athanasius Priharyoto Bayuseno
Jurnal Pendidikan Teknik Mesin Vol. 26 No. 01 (2026): June 2026 "Special issues for finite element analysis"
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jptm.v26i01.29860

Abstract

Numerical simulation-based biomechanical evaluation was used to analyze the effect of implant diameter variation on stress and strain on the abutment and screw using the Finite Element Method (FEM). Modeling was performed based on CBCT data and simulated in ANSYS Workbench 2023 R1. Three implant diameters were tested (3.75 mm, 4.3 mm, and 5.0 mm), each subjected to a force of 204.1 N at a 45° angle to mimic anterior functional conditions. The 4.3 mm diameter produced the highest stress on the abutment (213.62 MPa), while the 5.0 mm diameter showed the lowest stress (192.5 MPa) and minimum strain (0.00178). The 5.0 mm diameter also reduced the load on the screw, indicating a more stable load distribution. Therefore, this diameter is recommended as the optimal biomechanical configuration for anterior implant bridges, while considering anatomical limitations.
Co-Authors Beni Aji Subekti Darmanto Febri Budi Darsono Hartanto Prawibowo I Nyoman Jujur J. Jamari Kriswanto Paulus Wisnu Anggoro Rahmat Doni Widodo Rifky Ismail Robin Novriansyah Yuris Setyoadi