Comprehensive study on selective laser sintering 3D printer polyamide 12 recycle composition

Norazmi, Mohamad Akmal Hakimi (2023) Comprehensive study on selective laser sintering 3D printer polyamide 12 recycle composition. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The use of 3D printing has made it possible to fabricate both parts and products in this century. The product that needs to be produced using a 3D printer, which has become the central component in many technologies, but there are still problems with the printed product's physical qualities and surface morphology. The purpose of this experiment is to demonstrate the effects of significant Selective Laser Sintering (SLS) 3D printer parameters by comparing the technical data obtained from experiments using laser powers of varying values and layer thicknesses of Polyamide12 (PA-12). In addition to this, the purpose of the experiment is to establish which parameter, given varying values of laser power and layer thickness, will best suit the unique conditions. Using the SLS 3D printer, the test specimens were created with varying settings for the process parameters and percentages of the material composition. Tests were run to determine the stress, surface roughness, and surface morphology. employing a coated sample that was 10 millimetres by 10 millimetres and was prepared for scanning in an electron microscope in accordance with ASTM D638-(IV) for stress and roughness The results of the tensile test demonstrated that the strength of the material will deform at maximum tensile stress depending on the magnitude of the laser power and the layer thickness. Additionally, the surface roughness was reduced. Furthermore, According to the findings of this experiment, the optimal parameters for working with polyamide 12 are a layer thickness of 0.06 millimetres and an output power of 80 watts from the laser. Following the completion of the experiment, this was judged to be the general result.

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