Effect of polyamide 12 mechanical properties behavior of selective laser sintering machine in automotive industry

Zulkefli, Nur Ainani Amalia (2022) Effect of polyamide 12 mechanical properties behavior of selective laser sintering machine in automotive industry. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Even though numerous 3D printed objects have been produced, there are still concerns with the physical qualities of the printed product. The effects of significant Selective Laser Sintering (SLS) 3D printer settings on the material strength of Polyamide-12 are investigated in this study. For the Polyamide-12 material compositions, a mixture of virgin and recycled materials was used. The test specimens were produced using the SLS 3D printer at various process settings and material composition percentages. Torsional stress, compression strength, and surface roughness were all evaluated. Torsion test findings revealed that the composition of the 100% Virgin Material samples seemed stronger, with lower plastic deformation at maximum torsion (1.81Nm) and the highest Compressive Stress at 151.85 MPa. The mixed material samples looked to be stiffer since they have a torsion value of 1.69 Nm, a stress value of 145.33 MPa, and the smoothest surface of 9.334 μm. Finally, the best outcome for the SLS 3D printing guideline is a mixture powder composition.

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