Multi-objective optimization of laser polishing parameters for enhanced mechanical properties, sustainability, and surface finish of 3D-Printed industrial ABS polymers using response surface methodology (RSM)

In this investigation, the asperities on the print surface have been reduced using a laser polishing technique. The improvement in mechanical properties (tensile and flexural strength), roughness of printed surface, and scan time of three-dimensional (3D) -printed new acrylonitrile-butadiene-styrene (ABS) polymers are among the industrial issues that the projected laser polishing process is explicitly intended to address. Response surface approach was used in a series of tests to determine how altering the laser's parameters influenced the test materials' top finish and the mechanical properties. The pre -polishing workpiece was compared in terms of mechanical characteristics and surface examination using a scanning electron microscope. According to the results, surface roughness was decreased by more than 18.85% for ABS utilizing laser polishing, from 8.01 to 6.50 mu m. The sample's tensile strength improved by 8.1%, from 35.8 to 38.7 MPa. The samples' laser scan time was 0.143 min and the flexural strength increased by 2.58% from 58.01 to 59.51 MPa. These results demonstrate that a 3D -printed ABS polymer material's mechanical and surface qualities are enhanced by the novel postprocessing laser polishing technique. In order to produce sustainable items, this innovative technique is quite helpful in the 3D printing sector.